3.x Conservation Of Mass (Year 10 Chemistry)

The following test is covering '3.x Conservation Of Mass' for Year 10 Chemistry.

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In an experiment, 11.25g of sodium reacts completely with 17.25g of chlorine. What is the mass of sodium chloride produced?

Lead nitrate decomposes completely into lead oxide, nitrogen dioxide and oxygen. If the mass of lead nitrate is 33.1g, what will be the combined mass of the products?

If calcium carbonate weighing 100g decomposes to produce calcium oxide and carbon dioxide, what is the combined mass of the two products?

If hydrogen (4g) reacts with oxygen (32g), how much water is produced?

Iron combines completely with 32g of sulfur forming iron sulfide. If 56g of iron are used, what is the total mass of iron sulfide formed?

If 2.8g of iron reacts completely with 1.6g of sulfur, how much iron sulfide is produced?

When 12g of carbon reacts with 32g of oxygen to produce carbon dioxide, what is the mass of carbon dioxide produced?