1. What mass of calcium bromide will fully react with 71g of chlorine?

Question 1 of 10

2. Complete the following expression: Mᵣ =

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

Question 3 of 10

4. What are the units for amount in Chemistry?

Question 4 of 10

5. Balance the following equation: WO₃ + H₂ → W + H₂O

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6. What mass of carbon dioxide is produced when 24g of carbon undergoes completely combustion?

Question 6 of 10

7. Calculate the relative formula mass(Mr) of ethanol (C₂H₅OH)

Question 7 of 10

8. What is the meaning of the word mole in Chemistry?

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9. Balance the equation for the reaction: ___ HCl(aq) + ___ MnO₂(s) → ___MnCl₂(aq) + ___H₂O(l) + ___ Cl₂(g)

Question 9 of 10

10. What is the equation linking moles, Mᵣ and mass

Question 10 of 10