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3 years ago

The amount of heat in a substance depends on the _____ of the molecules.

1 answer:

5 0

The correct answer that would best complete the given statement above is the term MOTION. The amount of heat in a substance depends on the motion of the molecules. Since the temperature is defined as the measure ofthe average kinetic energy of molecules. The higher the temperature, the faster the motion of the molecules would be. Hope this answer helps.

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Which is considered a chemical mutagen? tanning beds tobacco X-rays precious metals

Elza [17]

the one that is considered a chemcial mutagen is : Tobacco Chemical mutagen refer to the substance that affected the DNA of those who consume the substancce or their offspring. Studies showed that consuming tobacco has proven to created DNA deformations for the fetus if it consumed by pregnant women

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3 years ago

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Can a combination reaction be a redox reaction ?

saul85 [17]

Answer:

Yes A redox reaction can be a combination reaction.

Two elements are mixed in a combination reaction to produce a single product.

Explanation:

Example: water formula

2H2 + O2 → 2H2O

Oxygen is reduced in this reaction when electrons are transferred from hydrogen to oxygen and hydrogen is also oxidized since oxygen from hydrogen accepts electrons. Oxygen is the oxidizing agent and hydrogen is the reducing agent.

2H2 + O2 → 2H2O

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3 years ago

Write a chemical reaction depicting what happens to the salt in water.

Mekhanik [1.2K]

No chemical reaction occurs. This is due to water molecules being very polar and and pulling out the sodium and chlorine ions once fully dissolved in water.

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3 years ago

Anthony needs to make a solution with a concentration of 2.5m. He begins with 2.0 iters and a 8.0M solution. What final volume d

FrozenT [24]

Answer:

The final volume is 6.4 L.

Explanation:

Dilution is reducing the concentration of a chemical and is achieved by adding more solvent to the same amount of solute. In other words, dilution is the procedure that is followed to prepare a less concentrated solution from a more concentrated one, and it simply consists of adding more solvent.

In a dilution the amount of solute does not vary, and as only more volume (and mass) of solvent is being added, the concentration of the solute decreases.

In a dilution the expression is used:

Ci*Vi = Cf*Vf

where:

Ci: initial concentration
Vi: initial volume
Cf: final concentration
Vf: final volume

In this case:

Ci: 8 M
Vi: 2 L
Cf: 2.5 M
Vf: ?

Replacing:

8 M* 2 L= 2.5 M* Vf

Solving:

$Vf=\frac{8 M* 2 L}{2.5 M}$

Vf=6.4 L

The final volume is 6.4 L.

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3 years ago

If more solvent is added to a solution: a. The solution's molarity decreases. B. The solution becomes more concentrated C. The s

Sergeu [11.5K]

The correct answer is C

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3 years ago

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