1. Write the word and chemical equation for the thermal decompostion of calcium carbonate, CaCO₃

Question 1 of 14

2. What is the universal indicator colour of a weakly alkali solution?

Question 2 of 14

3. What is an acid?

Question 3 of 14

4. What is the formula for silver carbonate?

Question 4 of 14

5. Describe the test for hydrogen gas

Question 5 of 14

6. State the formula for the iron (II) ion

Question 6 of 14

7. If an element conducts electricity, is it typically a metal or a non-metal?

Question 7 of 14

8. acid + base →

Question 8 of 14

9. What is the pH of a neutral solution?

Question 9 of 14

10. When sulfur burns in air, is the oxide acidic or basic?

Question 10 of 14

11. State the colour of phenolphthalein in acidic and alkaline solutions

Question 11 of 14

12. Can a base neutralise an acid?

Question 12 of 14

13. Is magnesium oxide acidic or basic?

Question 13 of 14

14. Balance the equation for the reaction: ___ HCl(aq) + ___ MnO₂(s) → ___MnCl₂(aq) + ___H₂O(l) + ___ Cl₂(g)

Question 14 of 14


 

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