In a closed container, a total of 20 g of reactants undergo a reaction to form products, and any gas produced remains inside the container. What will be the total mass of the products?
Answer and explanation
Correct answer: 20 g
According to the law of conservation of mass, mass is neither created nor destroyed during a reaction in a closed container. Since no gas or other substance leaves the container, the total mass of the products equals the total mass of the reactants, which is 20 g. A value such as 10 g would be possible only if some material escaped from the container.
Frequently asked questions
What is the correct answer to this question?
20 g
Why is this the correct answer?
According to the law of conservation of mass, mass is neither created nor destroyed during a reaction in a closed container. Since no gas or other substance leaves the container, the total mass of the products equals the total mass of the reactants, which is 20 g. A value such as 10 g would be possible only if some material escaped from the container.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
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