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

1. What are the three subatomic particles?

Question 1 of 10

2. What is the name of this molecule?

Question 2 of 10

3. Order these metals from the most reactive to the least: aluminium, calcium, copper, gold, iron, lithium, magnesium, potassium, silver, sodium, zinc

Question 3 of 10

4. A sample of bromine contained the two isotopes in the following proportions: bromine-79 = 50.7% and bromine-81 = 49.3%. Calculate the relative atomic mass of bromine

Question 4 of 10

5. On the Periodic table what is the meaning of the word Group? What does that tell us about the electron configuration of the atom?

Question 5 of 10

6. In the thermal decomposition of calcium carbonate, we might expect 50g of calcium carbonate to produce 28g of calcium oxide. If instead only 24g of calcium oxide is produced, what is the percentage yield?

Question 6 of 10

7. State the formula of the ammonium ion

Question 7 of 10

8. How many electrons can the third shell hold?

Question 8 of 10

9. How are potassium ions identified, and what is the result?

Question 9 of 10

10. What happens when something melts?

Question 10 of 10


 

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