Which statement best describes how to read a reaction pathway graph for an endothermic reaction?

Chemistry

1 answer:

posledela4 years ago

7 0

Answer:

C) Reactants absorb a minimum amount of energy and then release a smaller

amount of energy as products form.

Explanation:

The statement that best describes how to read a reaction pathway from the graph of an endothermic reaction is that, reactants absorb a minimum amount of energy and then release a smaller amount of energy as products form.

In an endothermic change, heat is absorbed from the surrounding.

As such, the surrounding becomes colder at the end of the reaction.
On a graph of an endothermic reaction, the reactants absorbs a minimum energy.
As the reaction proceeds, the products gives off an even lesser amount of energy.

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The gas that makes up about 12 percent of the earths atmosphere is ?

ElenaW [278]

Answer:

You may be referring to the gas that makes up 21% of the earth's atmosphere, which is oxygen.

Explanation:

According to NASA, the gases in Earth's atmosphere include:

Nitrogen — 78 percent

Oxygen — 21 percent

Argon — 0.93 percent

Carbon dioxide — 0.04 percent

(Trace amounts of neon, helium, methane, krypton and hydrogen, as well as water vapor)