Practice Hydrogen (9) - Hydrogen

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11 questions

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5 cards from this section. Quick, good the night before a test.
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5 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the atomic number of hydrogen?
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It's the first element in the periodic table.
Question 2.
Name one isotope of hydrogen.
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Think of the different forms of a single element.
3Question 3.
What is the atomic mass of hydrogen?
- 1.008 u
- 2.016 u
- 0.999 u
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It's less than 2 but more than 1.
4Question 4.
True or False: Hydrogen is the most abundant element in the universe.
- True
- False
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Remember the star composition.
Question 5.
A lab technician needs to collect hydrogen gas through the reaction of zinc with hydrochloric acid. Outline the steps he should take and explain why each step is necessary.
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Consider safety precautions and best collection techniques.
Question 6.
Discuss the potential of hydrogen as a clean energy source and the challenges associated with its storage and infrastructure.
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Think of renewable energy contexts and current fuel technologies.

7 more questions in this section. Enroll free to practise them all.