1. State the formula for the copper (II) ion

Question 1 of 14

2. What is a base?

Question 2 of 14

3. A gas is bubbled through limewater and the limewater goes cloudy. Identify the gas.

Question 3 of 14

4. What is an acid?

Question 4 of 14

5. Which are described as acidic: metal oxides or non-metal oxides?

Question 5 of 14

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

Question 6 of 14

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

Question 7 of 14

8. What observation is made when sulfur burns in air?

Question 8 of 14

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

Question 9 of 14

10. nitric acid + calcium carbonate →

Question 10 of 14

11. What is the formula for sodium fluoride?

Question 11 of 14

12. What is the pH of a neutral solution?

Question 12 of 14

13. What is an alkali compared to a base?

Question 13 of 14

14. What is the universal indicator colour of a weakly acid solution?

Question 14 of 14


 

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