1) What best describes a compound? a) has only 1 type of atom b) more than 1 type of atom mixed together c) more than 1 type of atom chemically bonded d) a mixture of two chemicals 2) Which of the following is an element? a) water b) carbon dioxide c) sodium d) CaCO3 3) Which of the following is a compound? a) potassium b) carbon dioxide c) O2 d) Calcium 4) When carbon reacts with oxygen it usually forms? a) water b) limestone c) carbon dioxide d) oxygen carbonate 5) If chlorine and sodium formed a compound what would it be called? a) Chlorine Sulphide b) Sodium Chlorate c) Sodium Chloride d) Chlorine Sulphate 6) If calcium, carbon and oxygen formed a compound what would it be called? a) Calcium Oxide b) Calcium Carbonate c) Oxygen Carbonate d) Carbon Calciumate 7) If magnesium, chlorine and oxygen formed a compound what would it be called? a) magnesium oxide b) chlorine oxynate c) magnesium chloride d) magnesium chlorate 8) If fluorine and lithium formed a compound what would it be called? a) Fluorine Lithide b) Lithiuim Fluoride c) Lithium Fluorate d) Fluorine Lithate 9) What is the word equation for lead reacting with oxygen to form lead oxide? a) Lead --> Oxygen + Lead Oxide b) Lead Oxide --> Oxygen + Lead c) Lead + Oxygen --> Lead Oxide d) Oxygen + Lead Oxide --> Lead 10) Which best describes the atoms in Carbon Dioxide? a) 1 carbon atom, 1 oxygen atom b) 2 carbon atoms, 1 oxygen atom c) 1 carbon atom, 2 oxygen atoms d) 2 carbon atoms, 2 oxygen atoms

Year 8 Compounds and Mixtures

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