Question

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

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.

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.

Answer 1

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

Reason: 2 H2 + O2 → 2 H2O. Breaking: two H–H bonds (from 2 H2) and one O=O bond (from O2). Forming: each H2O has two O–H bonds, so 2 × 2 = 4 O–H bonds total.