3.x Conservation Of Mass (GCSE Chemistry)

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?

During a lab experiment, 50g of reactants are used. What mass of products should form according to the law of conservation of mass?

If 2.8g of iron reacts completely with 1.6g of sulfur, how much iron sulfide is 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 5g of hydrogen reacts completely with 40g of chlorine, what mass of hydrogen chloride is formed?

What principle states that the total mass before a reaction equals the total mass afterward?

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

Lithium (7g) reacts with water (18g). How much lithium hydroxide and hydrogen gas are produced in total?

Sodium carbonate (106g) reacts fully with calcium chloride (111g) producing calcium carbonate and sodium chloride. What`s the total mass of products?

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

Copper (64g) reacts with oxygen (16g). What is the mass of the copper oxide produced?