Question

When hydrogen burns in oxygen and forms water, which bonds are broken and which bonds are formed?(1 point)
Responses

One H–H bond is broken, one O–O bond is broken, and two H–O bonds are formed.
One H–H bond is broken, one O–O bond is broken, and two H–O bonds are formed.

Two H–H bonds are broken, one O=O bond is broken, and four H–O bonds are formed.
Two H–H bonds are broken, one O=O bond is broken, and four H–O bonds are formed.

Two H–H bonds are broken, one O=O bond is broken, and two H–O bonds are formed.
Two H–H bonds are broken, one O=O bond is broken, and two H–O bonds are formed.

Two H–H bonds are broken, one O–O bond is broken, and four H–O bonds are formed.
Two H–H bonds are broken, one O–O bond is broken, and four H–O bonds are formed.

Answer 1

When hydrogen burns in oxygen to form water, the reaction can be summarized by the equation:

\[ 2H_2 + O_2 \rightarrow 2H_2O \]

In this reaction:

- Two H–H bonds are broken (since there are 2 H\(_2\) molecules).
- One O=O bond is broken (from the O\(_2\) molecule).
- Two H–O bonds are formed (in the two water molecules produced).

So the correct response is:

**Two H–H bonds are broken, one O=O bond is broken, and two H–O bonds are formed.**