Practice Preparation Of Hydrogen Gas (6.5) - Study of the First Element – Hydrogen

Practice: Preparation of Hydrogen Gas

Lesson 6.5Study of the First Element – Hydrogen

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10 questions

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6 sample questions

Question 1.
What is the reaction equation for the preparation of hydrogen using zinc and hydrochloric acid?
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Remember the products include hydrogen gas.
Question 2.
What are the two main methods of hydrogen gas preparation?
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Think of how hydrogen is produced on a large scale.
3Question 3.
What is the primary metal used in laboratory hydrogen preparation?
- Copper
- Zinc
- Iron
- Lead
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Consider the metals that react with acids.
4Question 4.
True or False: Electrolysis produces hydrogen gas and requires electricity.
- True
- False
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Recall how electrolysis functions.
Question 5.
If you have 10 grams of zinc reacting with excess hydrochloric acid, how many moles of hydrogen gas would be produced? (Molecular weight of Zn = 65 g/mol)
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Calculate moles using the weight of zinc and relate it to the reaction stoichiometry.
Question 6.
Discuss the potential benefits and drawbacks of using electrolysis over steam reforming for hydrogen production in terms of environmental impact.
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Consider the overall lifecycle and energy sources for each method.

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