Question

MULTIPLE CHOICE. Choose the letter of the correct answer. Write your answers on a separate sheet of paper.

Answer 1

Answer:

Hydrogen and oxygen combine in the ratio of 1 : 8 by mass to form water. What mass of oxygen gas would be required to react completely with 3 g of hydrogen gas? Thus, 24 g of oxygen gas would be required to react completely with 3 g of hydrogen gas.

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Answer 2

MULTIPLE CHOICE. Choose the letter of the correct answer. Write your answers on a separate sheet of paper.

• Chemical compounds are made up of components that are present in a set ratio by mass, according to the law of constant proportions. The implication is that every pure sample of a compound, from whatever source, will always include the same components, present in the same proportion by mass.
• As an illustration, pure water will always have a set mass ratio of hydrogen to oxygen. About 0.11 grams of hydrogen and 0.88 grams of oxygen make up one gram of water, making the ratio 1:8.
• 8g of oxygen are produced from 1g of hydrogen.
• As a result, 3g of hydrogen equals 3 × 8 = 24g of oxygen.
• Water is created when hydrogen and oxygen mix in a mass ratio of 1 to 8. What mass of oxygen gas would be necessary for 3 g of hydrogen gas to totally react? As a result, 3 g of hydrogen gas would require 24 g of oxygen gas to properly react.
• 8g of oxygen are produced from 1g of hydrogen. Therefore, 3g of hydrogen gas would require 24g of oxygen to complete the process.
• The implication is that every pure sample of a compound, from whatever source, will always include the same components, present in the same proportion by mass. 8g of oxygen are produced from 1g of hydrogen. As a result, 3g of hydrogen gas would require 24g of oxygen to complete the reaction.

Therefore, 3g of hydrogen gas would require 24g of oxygen to complete the process.