1. Is magnesium oxide acidic or basic?

Question 1 of 14

2. Balance the following equation: WO₃ + H₂ → W + H₂O

Question 2 of 14

3. What is the universal indicator colour of a pH 8-10 solution?

Question 3 of 14

4. Describe the test for carbon dioxide gas

Question 4 of 14

5. What is an alkali?

Question 5 of 14

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

Question 6 of 14

7. State the formula of the silver ion

Question 7 of 14

8. Describe the observations of the reaction of calcium carbonate and dilute hydrochloric acid

Question 8 of 14

9. Can a base neutralise an acid?

Question 9 of 14

10. What is the formula for calcium bromide?

Question 10 of 14

11. If an element doesn't conducts electricity, is it a metal or a non-metal?

Question 11 of 14

12. State the colour of methyl orange in acidic and alkaline solutions

Question 12 of 14

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

Question 13 of 14

14. What is the typical range of the pH scale?

Question 14 of 14