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

1. Which particle(s) in an atom has a positive charge?

Question 1 of 10

2. What is the formula for sodium oxide?

Question 2 of 10

3. State the mass and charge of a neutron

Question 3 of 10

4. How many electrons in an argon atom?

Question 4 of 10

5. Complete the following expression: mass =

Question 5 of 10

6. When carbon burns in air, is the oxide acidic or basic?

Question 6 of 10

7. Use Q=mcΔT and c=4.18J/°C/g. 25cm³ of sulfuric acid is put into a boiling tube. The starting temperature is 21°C. A spatula of iron filings is added. After a while the temperature reaches 33°C. What is the total heat energy change?

Question 7 of 10

8. If an atom loses electrons what happens to its charge?

Question 8 of 10

9. Of which homologous series is -COOH the functional group?

Question 9 of 10

10. Calculate the relative formula mass(Mr) of calcium carbonate (CaCO₃)

Question 10 of 10


 

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