Home / Unit-1 Nature of Science in Chemistry / Question
MCQ
According to the law of conservation of mass, when 12 g of carbon reacts completely with 32 g of oxygen, the mass of carbon dioxide formed will be ____.
Unit-1 Nature of Science in Chemistry
A 44 g
B 20 g
C 40 g
D 12 g
Explanation

Mass is conserved in a chemical reaction, so 12 g + 32 g = 44 g of carbon dioxide is produced.

Related MCQs

Why is chemistry important for a modern society?
Unit-1 Nature of Science in Chemistry View
Which of the following is matter?
Unit-1 Nature of Science in Chemistry View
An acid reacts with a base to form salt and water. This type of reaction is called ____.
Unit-1 Nature of Science in Chemistry View
A hypothesis is ____.
Unit-1 Nature of Science in Chemistry View
If 4 g of hydrogen burns completely in excess oxygen to form water, the mass of water formed will be ____.
Unit-1 Nature of Science in Chemistry View
Who is regarded as the founder of modern chemistry?
Unit-1 Nature of Science in Chemistry View