This quiz pulls questions at random from the entire 1100+ question-bank

1. What is meant by the term exothermic?

Question 1 of 10

2. How many electrons can the first, second and third shells hold?

Question 2 of 10

3. If nitric acid (HNO₃) produces H⁺ ions, what is formula for the other ion?

Question 3 of 10

4. When preparing hydrated copper(II) sulfate crystals starting from copper(II) oxide, why is an excess of copper (II) oxide added?

Question 4 of 10

5. What will happen to the equilibrium position when the pressure is increased? Give a reason for your prediction. CH₄(g) + H₂O(g) ⇋ CO(g) + 3H₂(g) ΔH = +210 kJ mol⁻1

Question 5 of 10

6. What is the formula for magnesium sulfate?

Question 6 of 10

7. When are ions attracted to each other?

Question 7 of 10

8. Write a chemical equation for the reaction between hydrogen chloride and ammonia

Question 8 of 10

9. hydrochloric acid + sodium hydroxide →

Question 9 of 10

10. What is the test for NH₄⁺ ions and what is the result?

Question 10 of 10


 

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