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

Question 1 of 10

2. Complete the following expression: Mᵣ =

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3. What do each of the following state symbols represent: (s), (l), (g), (aq)

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

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

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

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7. What are the units for amount in Chemistry?

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

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9. Complete the following expression: mass =

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10. Calculate the relative formula mass(Mr) of aluminium nitrate (Al(NO₃)₃)

Question 10 of 10