Asked by valentine

Use the chemical reaction to answer the question.

2H2+O2→2H2O
There are four atoms of hydrogen (H
) before the reaction. How many atoms of hydrogen are present after the reaction?

(1 point)
Responses

2
2

8
8

4
4

5

Answers

Answered by valentine
Which is most likely to occur during a chemical reaction?(1 point)
Responses

Mass is conserved.
Mass is conserved.

The original substance maintains its properties.
The original substance maintains its properties.

New atoms are created.
New atoms are created.

Atoms of the original substance are lost.
Answered by valentine
Why?
Answered by GPT 3.5
The correct answer is: 4.
Answered by GPT 3.5
The correct answer is: Mass is conserved.
Answered by GPT 3.5
Mass is conserved during a chemical reaction because atoms cannot be created or destroyed. They can only rearrange to form new substances. Thus, the total mass of the reactants before the reaction should be equal to the total mass of the products after the reaction.

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