Practice Preparation Of Hydrogen (9.4) - Hydrogen

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6 sample questions

Question 1.
What is produced when zinc reacts with dilute hydrochloric acid?
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Look at the products of the reaction.
Question 2.
Name one method for collecting hydrogen gas in the laboratory.
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Think about the properties of hydrogen.
3Question 3.
What method is commonly used to collect hydrogen gas?
- Upward displacement of air
- Downward displacement of water
- Vacuum filtration
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Think about how water behaves with gases.
4Question 4.
True or False: Hydrogen gas is soluble in water.
- True
- False
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Consider the characteristics of hydrogen.
Question 5.
If 10g of zinc is used in the reaction with excess hydrochloric acid, how many moles of hydrogen gas can be produced? Show your calculations.
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Use the molar mass of zinc to find the moles and relate directly to hydrogen production.
Question 6.
Describe the steps to perform the reaction safely, including equipment needed and what precautions to take.
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Think through the entire process and what safety measures need to be in place before starting the reaction.

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