1. What is the universal indicator colour of a pH 0-3 solution?

Question 1 of 14

2. What is a base?

Question 2 of 14

3. In the test of a gas, a lit splint gives a squeaky pop. What is the gas?

Question 3 of 14

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

Question 4 of 14

5. acid + alkali →

Question 5 of 14

6. Is magnesium oxide acidic or basic?

Question 6 of 14

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

Question 7 of 14

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

Question 8 of 14

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

Question 9 of 14

10.

What is the formula for strontium phosphide?

Question 10 of 14

11. What is an acid?

Question 11 of 14

12. With universal indicator, what is the pH of a blue solution?

Question 12 of 14

13. How can metal carbonates be used to produce carbon dioxide?

Question 13 of 14

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

Question 14 of 14


 

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