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

1. In a sealed container, a reversible reaction can reach a state of ______________________________

Question 1 of 10

2. Why does incomplete combustion occur?

Question 2 of 10

3. In the dot and cross diagram of the outer electrons showing the covalent bonding in a molecule of ethane (C₂H₆), how many electrons should be shown in areas 1, 2, 3, 4, 5, 6 and 7?

Question 3 of 10

4. Which is more reactive: iron, copper, magnesium or aluminium?

Question 4 of 10

5. Write the chemical equation for the complete combustion of ethanol

Question 5 of 10

6. When lots of these molecules have their double bond broken and they all join together into a long chain, what is the new molecule called?

Question 6 of 10

7. Suggest how the reactivity of astatine compares to that of iodine. Explain your answer.

Question 7 of 10

8. Recall a use of gasoline

Question 8 of 10

9. How many electrons in a fluoride ion?

Question 9 of 10

10. One way for ethanol to be oxidised, forming ethanoic acid, is to add sulfuric acid and what else?

Question 10 of 10


 

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