This quiz pulls questions at random from the entire Double-only question-bank

1. Work out the empirical formula of an oxide of chlorine contains 7.1 g of chlorine and 1.6 g of oxygen.

Question 1 of 10

2. Name this molecule

Question 2 of 10

3. Predict what colour and state is fluorine at room temperature

Question 3 of 10

4. State the meaning of the term reducing agent

Question 4 of 10

5. Calculate the relative formula mass(Mr) of hydrated copper (II) sulfate (CuSO₄.5H₂O)

Question 5 of 10

6. Recall the names of the main fractions obtained from crude oil, in order of lowest boiling point first

Question 6 of 10

7. What is the relative atomic mass (Aᵣ) of a potassium atom?

Question 7 of 10

8. How many electrons in an oxide ion?

Question 8 of 10

9. Crude oil contains a surplus of long chain alkanes and there is much higher demand for shorter chain alkanes. What process is used to deal with this imbalance?

Question 9 of 10

10. State the expression for calculating molar volume of a gas.

Question 10 of 10


 

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