Answer:
2C2H6+7/2O2=2CO2+3H2O
Explanation:
2-c-1 -2
6-H-2-6
7/2*2 =7 2-O-2+1=3-4+1=5-7
sorry, if you don't understand the explanation part. It would be much easier if you could see somebody explaining it and writing it out.
they have videos online to explaining it
Answer:
2 C2H6 + 7 O2 - > 4CO2 + 6 H2o
Explanation:
im sure
is hydrogen peroxide a product
If you jump on New Year’s Eve, then you will get tall.
A. a good hypothesis
B. hypothesis needs improvement
Tropical rain forests are being cut down to create farms and pastures, and to harvest trees for construction. What has this type of deforestation increased?
fertilizers.
microorganisms.
soil erosion.
soil moisture.
The deforestation of tropical rainforest trees to create farms and pastures, and to harvest trees for construction has increased soil erosion.
WHAT IS DEFORESTATION:Deforestation is the process whereby trees are cut down for commercial purposes e.g. lumbering for paper production. Rainforest is a vegetation characterized by trees and shrubs. However, these trees serve as soil cover and help prevent soil erosion.This means that deforestation of tropical rainforest trees to create farms and pastures, and to harvest trees for construction has increased soil erosion
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(GIVING OUT BRAINLIEST!)
Identify and describe the different forms of precipitation shown in the images.
Answer: Both images seem to represent hail and ice, these conditions are only brought by chilly temperatures and rain.
I AMMMM GIVING 45 POINTSSSS PLSSS HELPPPPPPPP
The following data was collected when a reaction was performed experimentally in the laboratory.
Reaction Data
Reactants Products
Al(NO3)3 NaCl NaNO3 AlCl3
Starting Amount in Reaction 4 moles 9 moles ? ?
Determine the maximum amount of NaNO3 that was produced during the experiment. Explain how you determined this amount.
Answer:
mNaNO3 =765g
Explanation:
First, we write the balanced chemical equation representing the chemical reaction that happened between aluminum nitrate and sodium chloride.
Balanced chemical equation:
AL(NO3)3+3NaCl ⟶ 3 NaNO3+AlCl3
According to the equation, each mole of aluminum nitrate requires three moles of sodium chloride. Thus, the required number of moles of sodium chloride is
4 Mol ⋅ 3 = 12mol
Based on the data provided in the table, there were 9 moles of sodium chloride used in the reaction, which was not enough for the entirety of aluminum nitrate to react. So, sodium chloride must have been the limiting reactant.
Therefore, we use the number of moles (n) of sodium chloride to calculate the number of moles of sodium nitrate, which has a 1:1 ratio with sodium chloride.
Number of moles sodium nitrate:
nNaNO3=nNaCl
nNaNO3 = 9 mol
We can also calculate the mass (m) of sodium nitrate that was produced by multiplying its number of moles by its molar mass (MM), 85.00g/mol.
Mass of sodium nitrate produced:
mNaNO3 = nNaNO3 ⋅ MMNaNO3
mNaNO3 = 9 mol ⋅ 85.00 g/mol
mNaNO3 =765g
If 2.80 moles of H₂ and 1.55 moles of O₂ react how many moles of H₂O can be produced in the reaction below?
2 H₂(g) + O₂(g) → 2 H₂O(g)
According to reaction
2 moles of H2 and 1 mol of O_2 produces 2 mol H2O3 mols of reactants produces 2 moles of H_2O1 mol of reactants produces 2/3=0.6 mol.of H_2OMols of reactants=2.8+1.55=4.35Mols of H_2O
[tex]\\ \tt\rightarrowtail 4.35(0.6)[/tex]
[tex]\\ \tt\rightarrowtail 2.61mol[/tex]
According to law of conservation of mass, 4.35 moles of water are produced when 2.80 moles of hydrogen and 1.55 moles of oxygen react.
What is law of conservation of mass?According to law of conservation of mass, it is evident that mass is neither created nor destroyed rather it is restored at the end of a chemical reaction .
Law of conservation of mass and energy are related as mass and energy are directly proportional which is indicated by the equation E=mc².Concept of conservation of mass is widely used in field of chemistry, fluid dynamics.
Law needs to be modified in accordance with laws of quantum mechanics under the principle of mass and energy equivalence.This law was proposed by Antoine Lavoisier in the year 1789.As 2.80 moles of hydrogen react with 1.55 moles of oxygen 2.80+1.55=4.35 moles of water are produced.
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Question 6 of 10
Identify the correctly written chemical reaction.
A. Reactant + Reactant = Product
B. Reactant + Product → Reactant + Product
C. Product + Product → Reactant + Reactant
D. Reactant + Reactant → Product + Product
SUB AT
Does solar energy heat the poles more than the equator
Answer:
Places that get more solar energy have more heat. Places that get less solar energy have less heat. The air above the areas receiving more heat warms up and rises. Because of this, the air, ocean, and Earth's surface gets heated at the equator more than at the poles.
Explanation:
Answer:
no
Explanation:
The poles receive less energy than the equator, hence the poles being colder than the equator.
64.064 grams of bromine gas, Br2 would occupy how many liters at stp?
This problem is providing us with the mass of bromine gas as 64.065 g so the volume it occupies at STP is required. After the calculations, the result turns out to be 8.96 L.
Ideal gas law:In chemistry, we use gas laws in order to comprehend the volume-temperature-mole-pressure behavior of gases. In this case, we refer to the ideal gas law as all of the aforementioned variables are taken into account:
[tex]PV=nRT[/tex]Thus, since STP stand for standard pressure and temperature, 1 atm and 273 K respectively, one must first calculate the moles of bromine gas to subsequently get the volume as follows:
[tex]n=64.064g*\frac{1mol}{159.8g} =0.40mol\\\\V=\frac{nRT}{P} \\\\V=\frac{0.40mol*0.08206\frac{atm*L}{mol*K}*273K}{1atm}\\ \\V=8.96L[/tex]
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what intermolecular forces are in c2h5nh2?
This problem is asking for the intermolecular forces in ethanamine, C₂H₅NH₂. Hence, after analyzing it, we find they are both London dispersion forces and hydrogen bonding.
Intermolecular forcesIn chemistry, intermolecular forces are the responsible of holding molecules together both in liquids and solids, and they depend on the type of bonds exhibited by the molecule. In this case, ethanamine:
[tex]CH_3-CH_2-NH_2[/tex]
Has C-C, C-H, C-N and N-H bonds. Now, C-C, C-H and N-H are strongly nonpolar as they have an electronegativity difference below 0.7, which means ethanamine has London dispersion forces as the weakest ones.
In addition, the presence of N-H bonds, provides this molecule with stronger intermolecular forces, hydrogen bonding, which occur in N-H and O-H bonds.
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Who is considered the boss of the water cycle?
will mark brainliest
Answer: The sun
Explanation:
its the real boss of the water cycle, and it doesn't even live here on Earth. The sun provides heat, or energy, which is what makes the water cycle work. The sun's heat allows water to change forms from liquid to gas to ice and back again.
How to write 21,000,000 in scientific notation
____ x 10 blank
Answer: [tex]2.1 * 10^7[/tex]
Explanation: To find things in scientific notation you basically just move the decimal point so that the number is in the one's place. The exponent is the number of times you moved the decimal place. Ex. 0.000003467 would be 3.467 * 10^-6 because you moved the decimal point six times to the right.
Give me an example of an average. For instance, "the average height of a person is about 5
foot 6 inches
Answer:
What is the average height of a human?
5.6 ft.
5.2 ft.
Human/Height
Image result for Give me an example of an average. For instance, "the average height of a person is about 5 foot 6 inches
However, the actual global average height of a woman is only 159.5 cm (5 ft 2.8 in) and the average height of a man is 171 cm (5 ft 7.3 in). Therefore, the height difference between men and women globally is about 4.5 inches or 12 centimeters.
Explanation:
How many significant figures are in 463.8052
Answer:
it has 7 significant figures
Explanation: hope this helps<3
How many formula units are there in 103 g of NaCl?
6.02 x 1023 NaCl formula units.
10.7 x 1023 NaCl formula units.
23 NaCl formula units.
10.7 x 1023 NaCl formula units.
Answer:
1.059 x 10^24 formula units
Explanation:
103/58.44 = 1.76 moles NaCl
1.76 x 6.022 x 10^23 = 1.059 x 10^24
How do birth and death rates affect a population size?
Answer:
When the death rate is higher than the birth rate, the population decreases. It increases when the opposite happens.
Explanation:
8.50g of CuO when heated in a current of dry hydrogen gas gave 6.58g of copper and 2.16g of wate Calculate the proportion of oxygen to hydrogen by mass in water.
The proportion of oxygen to hydrogen by mass in the water is 8 : 1
Data obtained from the question Mass of CuO = 8.50 gMass of Cu = 6.58 gMass of water = 2.16g Proportion =? How to determine the mass of O in water 1 mole of water (H₂O) = (2×1) + 16 = 18 gMass of O in water = 16 g
18 g of water contains 16 g of O.
Therefore,
2.16 g of water will contain = (2.16 × 16) / 18 = 1.92 g of O
How to determine the mass of H in water Mass of water = 2.16 gMass of O in water = 1.92 gMass of H =?Mass of H = mass of water – mass of O
Mass of H = 2.16 – 1.92
Mass of H = 0.24 g
How to determine the proportion of oxygen to hydrogenMass of O = 1.92 gMass of H = 0.24 gProportion =?Proportion = oxygen / hydrogen
Proportion = 1.92 / 0.24
Proportion = 8 : 1
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A 4-kg mass at the Earth's surface weighs about _________________ Newtons.
Answer:
Mass(m) = 4kg. Weight of m on surface of earth = 39.2N
Which time period saw the rise of small invertebrate life and fungi?
I hope it will help you !!!
Answer:
the Paleozoic Era
Explanation:
Which term means inflammation of a gland?
a. adenosclerosis
b. adenoma
c. adenitis
d. adenocarcinoma
Answer:
Adenitis: Inflammation of a lymph gland. From the aden-, gland + -itis, inflammation.
Inflammation of the gland can be defined by the term adenitis. Thus, option c is correct.
Inflammation is the body's immune response to an infection or an injury. This causes the white blood cells (leukocytes) of the body to move to the affected area or the tissue and results in swelling and redness.
The hardening of the gland is defined by adenosclerosis, the benign tumor of the glands is referred to as adenoma, whereas, cancer of the glands is referred to as adenocarcinoma.
In the word, adenitis, aden- is used to refer to the glands, and -itis defines inflammation. Hence, adenitis is used to define the inflammation of the glandular region.
Therefore, option c. adenitis is referred to as inflammation of the glands.
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formal charge of the following compound
Explanation:
I think it's Al(OH)3 its amphoteric in nature with chemical name Aluminium hydroxide.
hope this helps you
have a nice day :)
Give me an example of an average. For instance, "the average height of a person is about 5
foot 6 inches".
is UF6 a covalent compound or an ionic compound?
Hey there,
Given - Is UF6 a covalent compound or an ionic compound?
Answer- Covalent compound
Reason - Even though, still a subject of debate, theoretical results indicate that the U–F bond is partially covalent and could even possess some multiple bond characters, resulting from F → U π interaction cause.
~ Benjemin360
A rock was found on the side of the road. The rock was very crumbly, it had layers, and contained
fossils. What type of rock was likely found?
a. Metamorphic rock
b. Igneous rock
c. Granite rock
d. Sedimentary rock
Answer:
D
Explanation:
An atom X has 2 electrons in its outer orbit. What will it do to form a stable ion?
Answer:
In a neutral molecule, the sum of the bonding valance electrons must be equal. So the products of the negative element and its charges and the positive element and its charge must be equal.
Explanation:
C1×N1 = C2×N2
If we have a 3 valance electrons , the 'A' charge will be either +3 or -5 for a full octet and valance electron in 'B' atoms will mostly result in acquisition of additional electrons (2) for an octet and relative charge of -2.
Balancing the two,
3 × A = -2 × B
To be equal, A = 2 and B = 3
Therefore, A²B³
Which statements best describe convection? Check all that apply.
Convection occurs in solids.
Convection occurs in liquids and gases.
Convection transfers thermal energy.
Convection transfers potential energy.
Convection occurs until all of the fluid is at the same temperature.eeeeeeee
Convection occurs only one time, no matter the temperature.
Answer:
Convection occurs in liquids and gases.
Convection transfers thermal energy.
Explanation:
Identify and describe the three ways that mutations affect organisms?
Answer:
The ways that mutation can affect an organism include:
Changing the physical characteristics of the organism.
It can impact the way that the DNA is able to code the genetic information.
Also, mutation can lead to the death of an organism.
What is mutation?
Mutation simply means a change in the DNA sequence of an organism. It can result from DNA copying mistakes that were made during the cell division.
Mutation can affect an organism as it changes the phenotype of the organism. It can also impact the way that the DNA is able to code the genetic information and lead to the death of an organism.
Find molarity in 1.0 grams of potassium fluoride is dissolved to make 0.10 L of solution.
We are given –
Weight of [tex] \bf KF [/tex] is = 1g Volume, V = 0.10 L__________________________________________
Molar Mass of [tex]\bf KF [/tex] –[tex]\qquad[/tex] [tex]\twoheadrightarrow\bf 39.09 +18.99[/tex]
[tex]\qquad[/tex] [tex]\twoheadrightarrow\bf 58.08[/tex]
Using formula –
[tex]\qquad[/tex] [tex]\purple{\twoheadrightarrow\bf Molarity _{(Solution)} = \dfrac{ W}{MV}}[/tex]
[tex]\qquad[/tex] [tex]\twoheadrightarrow\bf Molarity _{(Solution)} = \dfrac{ 1}{58.08\times 0.10}[/tex]
[tex]\qquad[/tex] [tex]\twoheadrightarrow\bf Molarity _{(Solution)} = \dfrac{1}{5.808}[/tex]
[tex]\qquad[/tex] [tex]\purple{\twoheadrightarrow\bf Molarity _{(Solution)} = 0.1722M} [/tex]
Henceforth, Molarity of the solution is = 0.1722M.___________________________________________
What is fire and how does it work
Answer:
Fire is the result of applying enough heat to a fuel source, when you've got a whole lot of oxygen around. As the atoms in the fuel heat up, they begin to vibrate until they break free of the bonds holding them together and are released as volatile gases. These gases react with oxygen in the surrounding atmosphere.
Explanation:
A runner wants to run 11.7 km. Her running pace is 8.0 mi/hr. How many minutes must she run?
Answer:
8 mi = 12.875 km
12.875 /60 m
= 0.21458 km / min
11.7 / 0.21458 = 54.52 min
