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

1. Explain in 2 different ways why rusting is described as an oxidation reaction

Question 1 of 10

2. With gas syringes in a closed system, 200cm³ of air is passed back and forward over hot copper until the oxygen is used up. At the end, 160cm³ remains. Calculate the percentage by volume of oxygen in the air.

Question 2 of 10

3. How many protons in a helium atom?

Question 3 of 10

4. What type of reaction takes place at the cathode?

Question 4 of 10

5. Explain why methane gas, CH₄, is a gas at room temperature

Question 5 of 10

6. How many electrons in a phosphide ion?

Question 6 of 10

7. Which is more reactive: silver, gold, copper or iron?

Question 7 of 10

8. What is the name of this molecule?

Question 8 of 10

9. Is breaking bonds exothermic or endothermic?

Question 9 of 10

10. What is the functional group of alcohols?

Question 10 of 10


 

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