Q. A container has 10 grams of water 5 grams of water is added and 2 grams of water is taken out, what is the final amount of water?

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Q. 10 moles of O₂ is added to 10 moles of H₂, how many moles of H₂O will it produce?

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Q. A combustion reaction has reactants 1 mole of CxHy and 2 moles of O₂ and products 1 mole of CO₂ and 2 mole of H₂O, what is x + y?

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Q. In a random reaction 2 mole of CH₄ and 1 mole of C₂H₄ are reacted, and 1 mole of C₃H₈ and 1 mole of CxHy are produced, what is x*y?

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Q. A reaction has reactants 2 moles of NaOH and 1 mole of H₂SO₄, and products Na₂SO₄ and H₂O, what are the total moles of products?

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Q. A reaction is A + 2B -> 3C, if 2 moles of A and 4 moles of B entered the system, what are the number of moles of C formed?

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Q. 10 moles of A were present in a system initially, and 10 moles are added to it, it follows the reaction 4A -> B, what are number of moles of B produced?

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Q. 10 moles of A were present in a system initially, and 10 moles of C are added to it, it follows the reaction 2A + C -> 5B, what are number of moles of B produced?

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Q. There were 10 moles of a substance present initially in a system, 5 moles were added to it and a reaction occurred so that its moles are reduced by 20%, what are the final moles of substance in the system?

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Q. There were 15 moles of a substance present initially in a system, 25 moles were added to it and a reaction occurred so that its moles are reduced by 50%, what are the final moles of substance in the system?

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Q. 10 moles of A were present in a system initially, and 12 moles of C are added to it, it undergoes the reaction 2A + 3C -> 2B, what are number of moles of B produced?

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Q. 10 moles of A were present in a system initially, and 8 moles of C are added to it, it undergoes the reaction 5A + 3C -> 4B, what are number of moles of B produced?

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Q. 8 moles of A were present in a system initially, and 24 moles of B are added to it, it undergoes the reaction 2A + 3B -> 4C + 5D, what are number of moles of D produced?

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Q. Which of the following is constant in a closed system?

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Q. How is the boundary wall of a closed system?

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Q. Desert Cooler is an example of which of the following?

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Q. A jar filled with water is an example of which of the following?

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Q. A pressure cooker is an example of which of the following?

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Q. A country is an example of which of the following?

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Q. An egg is an example of which of the following?

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