D) (55 g)(4.18 J/g•K)(373 K)
14. A 17.0-gram sample of H2O(l) at 4.0°C absorbs
2558 joules of heat. What is the final
temperature of the H2O(l) sample?
A) 5.0°C
B) 40.0°C
C) 36.0°C
D) 50.0°C
Please help

Answer:

"Rain mixes with pollutants in the air to interact with rock" is an example of chemical weathering

Explanation:

The first statement refers to something known as "freeze thaw" which is mechanical weathering.

The second and fourth statements also refer to mechanical weathering

A medium that works by showing two reaction types is called a differential medium

Differentia media are one of the numerous culture media used in culturing microorganisms. They are also known as indicator media.

They are called differential media because they are able to make a distinction between two microorganisms growing on them based on the biochemical characteristics of some organisms in the presence of certain indicators or nutrients.

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Answer:

I think this would be iron

Explanation:

If 125 mL of a 3.5 M solution were evaporated, 0.438 moles of iron (II) nitrite would be recovered.

Molarity is a measure of the concentration of a chemical species, in particular of a solute in a solution, in terms of moles of solute per liter of solution.

We want to find the moles of iron (II) nitrite (solute) in 125 mL of a 3.5 M solution. We will use the definition of molarity.

M = n / V(L)

n = M × V(L) = 3.5 mol/L × 0.125 L = 0.438 mol

where,

If 125 mL of a 3.5 M solution were evaporated, 0.438 moles of iron (II) nitrite would be recovered.

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Answer:

Both A and B

Explanation:

With hazardous materials, it is usually a safe bet that all of the listed precautions are required, so to protect hazardous materials.

Answer:

D. Magnesium

Explanation:

The substance is composed of atoms that all have the same atomic number C) Methane. Methane (CH₄) is composed of atoms that all have the same atomic number. In this case, all the atoms in methane are hydrogen atoms, each having an atomic number of 1.

Atoms are the basic building blocks of matter. They are the smallest units of an element that retain the chemical properties of that element. Atoms consist of three main subatomic particles.

The number of protons in an atom determines its atomic number and identifies the element. For example, an atom with 6 protons is carbon, and an atom with 8 protons is oxygen.

Atoms are electrically neutral overall because the number of protons is equal to the number of electrons. However, atoms can gain or lose electrons to form ions, which have a net positive or negative charge.

Ethane (C₂H₆) and ethene (C₂H₄) contain both carbon and hydrogen atoms, while magnesium (Mg) is an element itself and consists of atoms with atomic number 12. Therefore, the substance is composed of atoms that all have the same atomic number C) Methane.

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Answer:

Aboitic factor would be soil

Biotic factor would be ants.

Explanation:

Answer:

The answer would be 2,838,240,000

Explanation: In 1 year there are 31,536,000 and if you multiply that number by 90 you would get 2,838,240,000

Answer:

2838240000

Explanation:

1 calendar year =

31536000

X 90

=

2838240000

Step by step explanation is given above.

Answer:

Density is a measure of mass per unit of volume. ... The average density of an object equals its total mass divided by its total volume. An object made from a comparatively dense material (such as iron) will have less volume than an object of equal mass made from some less dense substance (such as water).

Answer:

All food chains start with a producer. The arrows in the food chain below depict the direction in which energy and nutrients flow, i.e. the arrow always points from the eaten to the eater.

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Answer:

Consumeer

Explanation:

Answer:

14 dimes

Explanation:

48 nickels = 48 x .05 = $2.40

$3.80 - $2.40 = $ 1.40

$1.40 / .10 = 14 dimes

Answer:

It will rotate counter-clockwise

Explanation:

Momentum is greater on the left side.

The tundra ecosystem is most vulnerable to human activity.

This ecosystem is characterized by plains which lacks trees,

very low temperature and poor nutrients. It is harsh and few

humans inhabit this region.

It is most vulnerable to humans as a result of the high oil

exploration, drilling of mineral resources and hunting that takes

place in the region.

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Condensation is the changing of a gas to a liquid. The vapor molecules give up so much kinetic energy that they can't stay in the gaseous phase. The molecules begin to stick together or condense. Kinetic energy lost by condensing gas molecules warms the surface they strike.

Answer:

Continental

Explanation:

Hope This Helps

Answer:

The driving force of earthquakes in California is movement along the San Andreas Fault and the many associated faults within the San Andreas Fault System that form the tectonic boundary between the Pacific and North American tectonic plates.

Explanation:

Explanation:I help You :) only two answer

Assuming the total pressure is 1 atm, the partial pressure of oxygen is 0.22 atm.

The partial pressure of a gas in a mixture of gases is calculated using the formula below:

Assuming:

Partial pressure of oxygen = 0.22/1

Partial pressure of oxygen = 0.22 atm.

Therefore, assuming the total pressure is 1 atm, the partial pressure of oxygen is 0.22 atm.

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Answer:

Heat, Salt

Explanation:

Raising the temperature of ice brings it from a solid state to a liquid.  Unless you have a list of substances then it would probably be salt.  Salt melts Ice by lowering the freezing point temperature.

If you have a list of substances it would be helpful to list them in your question.

Answer:

a (F < C < Li)

b (Li < Na < K)

c (Ge < P < O)

d (C < N < Al)

e (Ga < Cl < Al)

Answer:

O2 in edge

Explanation:

The step to be completed first while using the half-reaction is balancing the equation. Thus, option B is correct.

The half-reaction is the oxidation or the reduction reaction of the redox reaction. The oxidation is given as the loss of electrons, and reduction is given as the gain of electrons.

The half-reaction in the cell consists of the change in the electrons and the oxidation state of the elements. The oxidation and reduction reactions are balanced by inserting the equation.

The first step in using the half-reaction is the balancing of reaction. Thus, option B is correct.

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the answer is D I hate it when people troll

Answer:

4 atoms of Hydrogen

1 atom of Sulphur

4 atoms of Oxygen

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Answer:

The answer is false

It is safe to heat flammable liquids with a hot plate as long as it’s done in a fume hood. The above statement is false.

A flammable liquid is one with a flash point at or below the nominal threshold temperatures specified by a variety of national and worldwide standards organizations. This means that it can easily ignite in air at room temperature.

Acetone, biodiesel, diesel, ethanol, and gasoline are just a few examples of flammable liquids. Strict storage regulations must be followed since the fumes of these substances rapidly catch fire and burn. These liquids are even further divided into groups based on their flash points or boiling points, and it is from these groups that safe handling and storage procedures are determined. It is not safe to heat flammable liquids with a hot plate as long as it’s done in a fume hood.

Therefore, the given statement is false.

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Answer:

The gravitational potential energy it had from being above the ground is converted to kinetic energy as the rock falls. As kinetic energy increases, the velocity of the rock will also increase. However, if one considers the air, the rock will lose energy as it falls due to air resistance. If the cliff is high enough, the acceleration due to gravity and the air resistance due to the velocity will be exactly equal and there will be no change in kinetic energy.

Explanation:

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Answer:

between electric and magnetic fields is answer

Answer:

Electromagnetic fields travel by transferring energy between electric and magnetic fields.

Explanation:

The electric and magnetic fields are perpendicular to each other and are also perpendicular to the direction of propagation of the wave.

Answer:

D. Potential energy

Explanation:

Answer:

Which type of energy is stored within an object and is partially determined by the object’s position?

electrical energy

ionic energy

kinetic energy

potential energy

D. potential energy

Answer:

The balanced chemical equation is,

                                 4 Fe + 3 O₂ → 2 Fe₂O₃

Drag four iron atoms and 3 oxygen molecules and place it on the left plate.

And drag 2 molecules of ferric oxide and place it on the right plate.