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When 20 g of hydrogen reacts completely with 160 g of oxygen, how much water is formed according to the Law of Conservation of Mass?

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Question

When 20 g of hydrogen reacts completely with 160 g of oxygen, how much water is formed according to the Law of Conservation of Mass?

Short Answer
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Solution

180 g of water is formed. By the Law of Conservation of Mass, the mass of water equals the combined mass of the reactants: 20 g + 160 g = 180 g.

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Chapter 9: Atomic Foundations of Matter - Intext Questions [Page 166]

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NCERT Science Exploration [English] Class 9
Chapter 9 Atomic Foundations of Matter
Intext Questions | Q 2. | Page 166
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