Answer:At STP, a mole of gas takes up 22.4 liters.
(This information can be deducted from ideal gas law)
So 15 liters correspond to x moles:
22.4 —- 1 mole
15 —- x
x = 0.67 moles
The complete combustion is the reaction:
CH4 (for example) + 2 O2 -> CO2 + 2 H2O
it is the same than
1/2 CH4 + O2 -> 1/2 CO2 + H2O
So the dioxide carbon producted will be 0.67/2 moles. Or, it will be 15/2 = 7.5 liters.
Notice that I used CH4 but I might used any organic compound instead. I used CH4 to be more pratical resulting 1 carbon atom in each side of the chemical equation.
Explanation:
Sodium (Na) and water(H₂O) undergo a chemical reaction the produces sodium hydroxide (NaOH) and hydrogen gas (H₂). Which equation represents this chemical reaction?
Sodium (Na) and the water(H₂O) undergo a chemical reaction the produces sodium hydroxide (NaOH) and hydrogen gas (H₂). The equation is :
2Na(s) + 2H₂O(l) → 2NaOH(aq) +H₂(g) . The correct option is A.
The Sodium (Na) and the water (H₂O) will undergo the chemical reaction they produces the sodium hydroxide (NaOH) and the hydrogen gas (H₂). The chemical equation is as follows :
Na(s) + H₂O(l) → NaOH(aq) +H₂(g)
The balance chemical equation is the equation in which the atoms of the reactant and the product side are equal. Multiply 2 in Na , in H₂O and in NaOH, we get :
2Na(s) + 2H₂O(l) → 2NaOH(aq) +H₂(g)
Thus, option A is correct.
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This question is incomplete, the complete question is :
Sodium (Na) and water(H₂O) undergo a chemical reaction the produces sodium hydroxide (NaOH) and hydrogen gas (H₂). Which equation represents this chemical reaction?
A. 2Na + 2H₂O ---> 2NaOH + H₂
B. 2Na+ H₂ ---> 2NaOH + 2H₂O
C. 2Na + 2NaOH ----> 2H₂O + H₂
D. H₂ + 2H₂O ----> 2Na + 2NaOH
A student accurately measured the volume of a solution, but spilled some before measuring solution mass. what is the effect on calculated solution density?
Answer:
The calculated solution density is lower than the actual density.
Explanation:
If the student spilled some of the solutions before measuring the mass, the calculated mass of the solution will be lower than the actual mass of the solution. This means that the calculated density of the solution will be higher than the actual density of the solution since the calculated density is the mass of the solution divided by the measured volume of the solution. In other words, the calculated density will be overestimated due to the lower measured mass of the spilled solution, leading to a potential error in the density measurement.
Assuming that the spilled solution was of the same density as the remaining solution, the effect of spilling some of the solutions before measuring the mass would be that the calculated solution density would be lower than the actual density. This is because the calculated density is based on the measured mass and the remaining volume, which is now smaller than the actual volume due to the spilled solution. As a result, the calculated density would be lower than the actual density.
A nurse observes that a patient admitted for trauma is lethargic with PaO2 57 mmHg. The presence of which other factor(s) should lead the nurse to anticipate endotracheal intubation?
The presence of a PaO2 of 57 mmHg, combined with the patient's lethargy and the nurse's assessment of other vital signs, should lead the nurse to anticipate endotracheal intubation.
This is because a normal PaO2 level is around 90-95 mmHg, so a PaO2 of 57 mmHg indicates that the patient's oxygen saturation is low, which can be a sign of respiratory distress. Therefore, the nurse should anticipate that the patient may require intubation. In addition, the nurse should also consider the patient's level of lethargy. If the patient is displaying increased levels of lethargy, it may be indicative of inadequate oxygen delivery to the tissues. This could suggest that the patient is not able to take in enough oxygen, and therefore, intubation is warranted.
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what is the most common type of chemical sedimentary rock?
The most common type of the chemical sedimentary rock is limestone.
Limestone is primarily composed of the mineral calcite (CaCO₃) and forms from the precipitation of calcium carbonate in environments such as shallow marine waters, lakes, and caves.
Limestone can also form from the accumulation of shells and other skeletal remains of marine organisms that are rich in calcium carbonate. When these organisms die, their remains settle on the ocean floor and become buried by sediment. Over time, the sediment compacts and cements the shells and other materials together, forming limestone.
Other types of chemical sedimentary rocks include evaporites, which form from the evaporation of saline water, and chert, which is formed from the accumulation of silica-rich remains of marine organisms.
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Which of the following cannot form hydrogen bonds with water?
a. CH₃OCH₃
B. NA⁺
C. F⁻
D. HCOOH
The one from the following which cannot form the hydrogen bonds with the water is the Na⁺. The correct option is B.
The hydrogen bond is the interaction that involves the hydrogen atom that is present in between the pair of the other atoms having the high affinity for the electrons and such the bond is the weaker than the ionic bond or the covalent bond but this bond is stronger than van der Waals forces. The hydrogen bond is the type of an intermolecular force (IMF) that will forms the special type of the dipole - dipole attraction .
Thus, as there is no electronegative atom in the Na⁺, therefore, it cannot form the hydrogen bond with the water.
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According to the phase diagram for H2O, what happens to the phases of water at 0C as the pressure is increased from 0 atm to 10 atm?
According to the forces of attraction and phase diagram , water changes from solid to liquid to gas.
What are forces of attraction?Forces of attraction is a force by which atoms in a molecule combine. it is basically an attractive force in nature. It can act between an ion and an atom as well.It varies for different states of matter that is solids, liquids and gases.
The forces of attraction are maximum in solids as the molecules present in solid are tightly held while it is minimum in gases as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.
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Which of the following is a true statement? Select 2.
Gas particles are much smaller than the distances between them
Gas particles are the same size as the distances between them
Gas particles are much larger than the distances between them
The volume of a gas is mostly tightly packed particles.
The volume of a gas is mostly empty space.
The volume of a gas is equally empty space and tightly packed particles.
The following sets of quantum numbers, listed in the order n, â„“, mâ„“, and ms, were written for the last electrons added to an atom. Identify which sets are valid and classify the others by the rule or principle that is violated. Drag the appropriate items to their respective bins.
The sets of quantum numbers, listed in the order :
a. 5 0 0 +1/2
5 0 0 -1/2
Valid
b. 3 2 -1 +1/2
3 2 0 +1/2
3 2 +1 +1/2
3 2 0 +1/2
3 2 +2 +1/2
Pauli violation
c. 3 1 -1 +1/2
3 1 0 +1/2
3 3 +1 +1/2
Other violation
For the a set;
5 0 0 +1/2
5 0 0 -1/2
This set will correctly corresponds to the 5s orbital and it is valid.
For the b set;
3 2 -1 +1/2
3 2 0 +1/2
3 2 +1 +1/2
3 2 0 +1/2
3 2 +2 +1/2
This set should correspond to the 3d orbital but it is clear that the two electrons in the set that have the exactly the same quantum numbers of the 3 2 0 +1/2. This violates the Pauli exclusion and it is Pauli violation.
For the c set:
3 1 -1 +1/2
3 1 0 +1/2
3 3 +1 +1/2
This set should have the corresponded to the 3p orbital but the values of l only range from the 0 to (n - 1). This is other violation.
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The following sets of quantum numbers, listed in the order n, l, ml, and ms were written for the last electrons added to an atom. Identify which sets are valid and classify the others by the rule or principle that is violated.
choices for these answers are: "other violation," "pauli violation," and "valid."
a. 5 0 0 +1/2
5 0 0 -1/2
b. 3 2 -1 +1/2
3 2 0 +1/2
3 2 +1 +1/2
3 2 0 +1/2
3 2 +2 +1/2
c. 3 1 -1 +1/2
3 1 0 +1/2
3 3 +1 +1/2
Which compound would be expected to show moderate IR absorption at 3100cm-1?
A. CH3CH2C=CH
B. But-1-yne
C. CH3Cl
D. CH3C (triple bond) CCH3
E. Butane
The triple bond receives the lowest number because the numbering process begins at the end. Hence, 1-butyne is the compound's IUPAC designation.
What's the purpose of butyne?
It is a specialized gas mixture used in the organic synthesis of substances and in the calibration of instruments; it has no distinctive industrial function. Butyne has two isomers, which are two compounds that have the same chemical formula, but different connections between the atoms: 1-butyne and 2-butyne
It's either 1-butyne or butyne.
Broadly speaking, butyne is a molecule made up of two carbon atoms connected by a triple bond. a a to to ands mol. The triple bond in the molecule is between the first and second carbon atoms, as defined by the naming of organic compounds.
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What is the specific weight of water in SI units?
The specific weight of water is 9.81 kN/m³ in SI units.
The specific weight is a measure of the weight per unit volume of a material. In the case of water, it is the weight of a given volume of water under the influence of gravity. The specific weight is different from density, which is a measure of the mass per unit volume of a substance.
In SI units, the specific weight of water is typically expressed in newtons per cubic meter (N/m³) or kilonewtons per cubic meter (kN/m³). Since the acceleration due to gravity is approximately 9.81 m/s², the specific weight of water is 9.81 kN/m³.
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what is the most appropriate action if a chemical has just splashed on a person's face in lab? [ select ]
If the eyes are not yet impacted, wash the face without taking off the goggles. Dry the chemical with paper towels or remove it with a wipe.
chemicals that contact the face or eyes In the event that chemicals come into contact with the face or eyes, utilize the eyewash station. Quickly wash your eyes for at least 15 minutes with flowing water from an eyewash station. To make the eyes stay open while flushing, gently open the eyelids with your fingertips.
DO NOT TAKE OFF your goggles if a chemical splashes on your face while you are wearing them. After cleaning the afflicted area, carefully take off your goggles covering your eyes. Burns: For 20 minutes, flush the area with cool water and let the instructor know.
The skin must be quickly cleansed with water for at least fifteen minutes after contaminated clothing has been removed. Before being worn again, clothes must be cleaned. For more details, see First Aid for Chemical Exposures.
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Group the electronic configurations of neutral elements in sets according to those you would expect to show similar chemical properties. Note that as long as the configurations are grouped correctly with regard to each other, it does not matter which set you assign to each group. Set A Set B Answer Bank 1:22:2 182 1922s22p03823p64323204p2 1322322p03823p 4323d"°4p65324d05p2 1922,22p3:23p6432 1.322s22p 3,23p64323 5p6s2445dº6p2
Set A elements behave similarly due to valence electrons in s and p orbitals, while Set B elements behave differently due to valence electrons in both s and d orbitals.
Set A:
1s²2s²
1s²
1s²2s²2p⁶3s²3p⁶4s²
Set B:
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p²
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p²
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶6s²4f¹⁴5d¹⁰6p²
The elements in Set A have valence electrons only in the s and p orbitals of their outermost energy level. This makes them similar in chemical behavior, as they tend to form covalent bonds by sharing electrons.
The elements in Set B have valence electrons in both the s and d orbitals of their outermost energy level, which gives them unique chemical properties, including the ability to form coordination complexes and exhibit variable oxidation states. Therefore, they are different in chemical behavior compared to the elements in Set A.
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Complete question is in the image attached below
how acetone boiling point ?
The boiling point of acetone is approximately 56.1 degrees Celsius or 132.98 degrees Fahrenheit at standard atmospheric pressure (1 atmosphere or 760 mmHg)
At typical atmospheric pressure, the boiling point of acetone is approximately 56.1 degrees Celsius or 132.98 degrees Fahrenheit (1 atmosphere or 760 mmHg). At this temperature and pressure, acetone will boil and transform from a liquid to a gas.
It should be noted that the boiling point of acetone can vary slightly depending on the pressure used to measure it. At greater pressures, the boiling point is somewhat higher, while at lower pressures, it is slightly lower.
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MARKING BRAINIEST Which conditions are necessary for hail to form?
Strong winds within the cloud bounce the frozen water around and add layers of frozen water.
Strong winds below the cloud cause the frozen water to melt and cause water vapor to condense.
The above freezing temperature of the air in the cloud adds more layers of ice to the water droplets.
The freezing temperature of the air below the cloud causes the water droplets to freeze.
The conditions that are necessary for hail to form is The freezing temperature of the air below the cloud causes the water droplets to freeze.
Which conditions are necessary for clouds to form?It should benoted that the Clouds form asd a result of the invisible water vapor in the air whichcondenses into visible water droplets whichis been conidered as the ice crystals.
It should benoted that this can take place wheen the parcel of air must be saturated, which implies that iot can no longer hold all the water it contains in vapor form, then it turns to condense into a liquid or solid form.
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Select the hydrocarbon from the following choices: a) C3H8 b) CO2 c) C6H12O6 d) H2CO3 e) CCL2F2.
The hydrocarbon among the given choices is option A, C3H8. Hydrocarbons are organic compounds that contain only hydrogen and carbon atoms, and C3H8, also known as propane, is a simple alkane hydrocarbon with three carbon atoms and eight hydrogen atoms.
Option B, CO2, is not a hydrocarbon as it does not contain hydrogen atoms, but it is a simple inorganic molecule made up of one carbon atom and two oxygen atoms.
Option C, C6H12O6, is a carbohydrate, which is an organic compound made up of carbon, hydrogen, and oxygen atoms. It is also known as glucose, which is an important source of energy for living organisms.
Option D, H2CO3, is a weak acid also known as carbonic acid, which is formed when carbon dioxide dissolves in water. It is not a hydrocarbon as it contains oxygen in addition to carbon and hydrogen.
Option E, CCl2F2, is a chlorofluorocarbon (CFC), which is an organic compound that contains chlorine, fluorine, and carbon atoms. It is not a hydrocarbon as it contains chlorine and fluorine atoms in addition to carbon and hydrogen.
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What medication is contraindicated with sulfamethoxazole?
The medication dofetilide, which is used to treat irregular heartbeats, and sulfamethoxazole should not be used together since it raises the chance of harmful side effects.
Sulfamethoxazole is an antibiotic often used to treat bacterial infections. Sulfamethoxazole and a number of other drugs should not be used simultaneously since doing so increases the chance of harmful side effects. These treatments include certain anti-seizure drugs like phenytoin, some blood thinners like warfarin, and diuretics like furosemide. Moreover, the risk of adverse effects is increased when sulfamethoxazole is used with other antibiotics like trimethoprim. In order to prevent potentially harmful drug interactions, it is crucial to constantly let your healthcare practitioner know about any drugs you are taking.
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what is benzoic acid melting point?
Benzoic acid's melting point is 122.4°C (252.3°F). It is a white solid used as a food preservative and in pharmaceuticals.
Benzoic corrosive is a white translucent strong with the substance equation C6H5COOH. It is a typical natural corrosive utilized in the creation of food additives, like sodium benzoate. The liquefying point of benzoic corrosive is 122.4°C (252.3°F), and that implies it can exist as a strong at room temperature. At the point when warmed, the intermolecular powers that keep the particles intact debilitate, permitting the strong to progress to a fluid. The dissolving point of benzoic corrosive can be impacted by variables like pollutions and strain. Notwithstanding its utilization as a food additive, benzoic corrosive has different applications, incorporating as a part in drugs and as a forerunner to different synthetic compounds.
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a system that can interact with its environment undergoes a natural, spontaneous process.
A spontaneous process is one that takes place without the system receiving any outside input. Without the usage of external energy, this process happens naturally.
What kind of natural process might be considered spontaneous?One wholly independent of external energy input, a spontaneous process happens on its own. As an illustration, a ball will roll down a slope; water will flow downwards; ice will melt into fluid; radioisotopes will decay; and iron will rust.
What are spontaneous and non-spontaneous processes?When specific conditions are met, a spontaneous process will take place. On the other hand, a nonspontaneous process won't start unless energy is continuously supplied from outside the system, or it is "driven" by that energy.
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Use bond energies to calculate the enthalpy of combustion of methanol in kJ /mol.
To determine the enthalpy, use bond energies. The combustion reaction of methanol has an enthalpy of -1295 kJ/mol.
How would you define enthalpy?Enthalpy is calculated by adding the internal energy, stress, or volume. Enthalpy in a system cannot be measured, yet variations in enthalpy can be seen. By keeping Pressure constant, we can assure dat H = E + P V, which will make life easier.
How do entropy and enthalpy differ?In contrast to entropy, which measures the degree of inherent disorder within a chemical, enthalpy measures the amount much inherent energy contained in such a complex. Water's enthalpy is nonzero since elemental molecules like hydrogen gas & oxygen gas have an enthalpy of zero (regardless of phase).
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Electronegativity values for elements in Group 1A are much lower than the values for elements in Group 7A. What type of bond forms if an element from Group 1A bonds with an element from Group 7A?
a. ionic bond
b. hydrogen bond
c. polar covalent bond
d. nonpolar covalent bond
An ionic bond forms if an element from Group 1A bonds with an element from Group 7A. Option a is correct choice.
Electronegativity is a measure of an atom's ability to attract electrons towards itself in a covalent bond. Elements in Group 1A have low electronegativity values because they have one valence electron that is far away from the nucleus, making it easier to lose that electron. In contrast, elements in Group 7A have high electronegativity values because they have seven valence electrons that are close to the nucleus, making it easier to gain an electron.
When an element from Group 1A, such as sodium (Na), bonds with an element from Group 7A, such as chlorine (Cl), the electronegativity difference between the two atoms is significant. Sodium has a low electronegativity value, so it readily loses its valence electron to form a positively charged ion, Na+. Chlorine, on the other hand, has a high electronegativity value, so it readily gains an electron to form a negatively charged ion, Cl-. Therefore, the correct answer is (a) ionic bond.
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When a carbonated beverage is sealed, it is: Select the correct answer below: a) unsaturated with carbon dioxide b) saturated with carbon dioxide c) supersaturated with carbon dioxide d) saturated with oxygen
When carbonated beverage is sealed, then it is saturated with carbon dioxide. Option B is correct.
The carbonation process involves in the dissolving carbon dioxide gas in water under high pressure, and when the pressure is released, some of the gas escapes and forms bubbles. The remaining carbon dioxide in the liquid is in a state of equilibrium with carbon dioxide in the gas phase, which means that solution is saturated with carbon dioxide at that pressure and temperature.
A carbonated beverage is a drink that has been infused with carbon dioxide gas under high pressure, resulting in a bubbly and fizzy texture. The carbonation process occurs when carbon dioxide gas is dissolved in water, which then forms carbonic acid. This carbonic acid is responsible for the tangy taste and slight burn that is often associated with carbonated beverages.
Hence, B. Saturated with carbon dioxide is the correct option.
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The study of the relationship between heat and work within chemical reactions or physical changes of state is called chemical ________________.
a. reactions
b. chemistry
c. thermodynamics
d. changes
The study of the relationship between heat and work in a chemical reaction or change of physical state is called chemical thermodynamics. So, option C is correct.
The study of how heat and work interact with chemical reactions or physical state changes within the parameters of the laws of thermodynamics is called chemical thermodynamics.
Thermochemistry is the class of chemical reactions that result from the absorption and release of heat, while thermodynamics describes the rate at which heat flows.
The laws of thermodynamics explain how energy develops in a system and whether a system can use its surroundings to produce productive work. Hence, option C is correct.
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PLEASE ANSWER ASAP!! WORTH 100 POINTS!!
Salt (NaCl) placed on an icy sidewalk causes ice to melt. This melting is a result of freezing-point depression. The salt dissolves in the water that makes up the ice and forms a solution that has a lower freezing point than pure water. If 500 g of salt is added to 4.00 kg of water, what is the molality? Show your work. Reminder - you will have to find the molar mass of NaCl to start with.
If 500 g of salt is added to 4.00 kg of water. Therefore, 2.12mol/Kg is the molality of the solution.
What is molality?Molality is the number of molecules of solute present in a solution equal to 1 kilogram and 1000 g of solvent. This is in contrast to the concept of molarity, which would be based on the volume of a solution.
Molality is frequently expressed in chemistry as mol/kg. A solution with a concentration of 1 mol/kg also is known as a molal. The measurement mol/kg requires molar mass to be represented in kg/mol rather than g/mol or kg/kmol.
molality = moles of solute/ Kg of solvent
moles of solute = mass / molar mass
= 500 / 58.4
=8.5moles
molality = 8.5/ 4.00 =2.12mol/Kg
Therefore, 2.12mol/Kg is the molality.
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What type of bcl3 ? polar or nonpolar?
The chemical boron trichloride (BCl3) is nonpolar. The molecule has a trigonal planar structure, with three chlorine atoms surrounding the central boron atom.
In BCl3, three chlorine atoms form covalent connections with the boron atom. While chlorine has seven valence electrons, boron's valence shell only has three. Boron thus forms three single covalent connections with three chlorine atoms by sharing its three valence electrons with them. The three B-Cl bonds are all polar because chlorine has a stronger electronegativity than boron. The three chlorine atoms are, however, symmetrically positioned around the primary boron atom because the molecule has a trigonal planar geometry and is symmetrical. This configuration causes the three B-Cl bonds' dipole moments to cancel out, resulting in a net dipole moment of zero. As a result of its lack of polar bonds, BCl3 is regarded as a nonpolar molecule.
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Which pattern below most likely came from a gunshot and which one was produced from a blow on the head? How do you know?
Sample B was the Gunshot, it is a high velocity impact pattern anf forms a mist, while sample A was from a blow to the head, it is a medium velocity and more concerntrated blood.
What is Velocity?Velocity is a vector that measures the rate and direction of a moving object. It is defined as the rate of change of an object's position with respect to time. It is usually represented by the symbol v and is measured in meters per second (m/s). Velocity is used in physics to calculate the motion of an object in a given frame of reference.
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what is polar molecules hydrophobic?
Polar molecules are hydrophilic and dissolve in water, while hydrophobic molecules are non-polar and repel water.
Polar particles are hydrophilic, meaning they have serious areas of strength for a for water and will generally break up in it. This is on the grounds that polar particles have a net dipole second, where the circulation of electric charge is unevenly disseminated, bringing about incomplete positive and negative charges. At the point when put in water, the polar particles fall in line with the polar water atoms, shaping hydrogen bonds and dissolving. Interestingly, hydrophobic particles are non-polar and don't have areas of strength for a for water. This is on the grounds that they miss the mark on net dipole second and don't frame hydrogen bonds with water. All things considered, hydrophobic atoms will generally total and repulse water, which is the reason they are frequently called "water-dreading" or "water-repulsing."
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What is the molarity of 1.5 liters of an aqueous solution that contains 52 grams of lithium fluoride, LiF?
The molarity of the 1.5 liters of the aqueous solution containing 52 grams of lithium fluoride is 1.334 M.
The molarity of the solution can be calculated using the formula,
Molarity (M) = moles of solute / volume of solution in liters
The number of moles of LiF present in the solution,
Molar mass of LiF = 6.941 + 18.998 = 25.939 g/mol
Number of moles of LiF = mass of LiF / molar mass of LiF
Number of moles of LiF = 52 g / 25.939 g/mol = 2.002 mol
Next, we need to convert the volume of the solution from liters to moles:
Volume of solution = 1.5 L
Molarity (M) = 2.002 mol / 1.5 L = 1.334 M
Therefore, the molarity of the solution is 1.334 M.
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what is the formal charge of a sulfur atom that forms four bonds and has one lone pair?
The formal charge of the Sulphur atom is 1. The nitrogen atom possesses five valence electrons in total, three bonding pairs with other atoms, one lone pair, and three shared bonding pairs. This takes our attention full round to the atom of nitrogen.
A fake charge is another name for a formal charge. The true charge over a polyatomic molecule or ion is spread on an ion as a whole, not over a single atom, hence this charge over a single atom of an ion is only theoretical. The difference between an atom's valence electron in its elemental state and the number of electrons allotted to it in Lewis structure is the formal charge, over that atom in a polyatomic molecule or ion.
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In addition to microscopic analysis, how is paint evidence often analyzed?
A.chemically
B.stereoscopically
C.visually
D. with SEMS
Answer: A.chemically
Explanation: In addition to microscopic analysis, paint evidence is often analyzed chemically. Paint is a complex mixture of organic and inorganic compounds, and chemical analysis can reveal the composition of the pigments, binders, and additives used in the paint. This information can be used to link a particular paint sample to a specific manufacturer or production batch, and can also help to establish the age of the paint. Chemical analysis techniques used in paint analysis include Fourier transform infrared (FTIR) spectroscopy, gas chromatography-mass spectrometry (GC-MS), and X-ray fluorescence (XRF) spectroscopy. By combining the results of chemical and microscopic analysis, forensic investigators can often identify the source of a particular paint sample and provide valuable evidence in criminal investigations.
help plssssssssssssss
Answer:
B. each aquarium . . . the surroundings
Explanation:
Since the Final tempurature is less than the original. Both aquariums released thermal energy
