2
lesson pretestMultiple Choice

Pretest

Question 2 • Physical Science

What is the chemical formula of water?

Answer
A
NH sub 3
B
HO sub 3
C
cap h sub 2 cap o
D
cap n sub 2 cap o

Explanation

A water molecule contains two hydrogen atoms bonded to one oxygen atom. Its chemical formula is H₂O, which matches choice C.

AI-written and checked against the verified answer.

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