1. Hydrochloric acid + ____ -> sodium chloride + hydrogen ____ 2. Sulphuric acid + calcium ____ -> calcium sulphate + water NEUTRALISATION 3. Calcium + ____ -> calcium oxide COMBUSTION OF METAL 4. Butane + oxygen -> carbon dioxide and water ____ 5. Two chemicals are mixed and their temperature drops ____ 1. Red litmus in base turns ____2. Universal indicator in strong acid is ____ 3. ____ is a weak base 4. A pH of 13 is a ____ base 5. A pH of 6 is a ____ acid 1. Nitric acid + magnesium hydroxide -> magnesium nitrate + ____ NEUTRALISATION 2. Phosphoric acid + potassium ->potassium phosphate + hydrogen gas ____ 3. Nitric acid + barium oxide > barium ____ + water NEUTRALISATION 4. Copper + oxygen -> Copper ____ COMBUSTION OF METAL 5. Two chemicals are mixed and their temperature ____ EXOTHERMIC 1. The Law of ____ of Mass: Matter cannot be created or ____. Thus, the mass of the products must ____ the mass of the ____. For example, if 3 grams of zinc reacts with 5 grams of sulphuric acid. 7 grams of zinc ____ is produced. What is the mass of hydrogen gas produced? ____ The Law of Constant Proportions: In chemical compounds, the ____ of of the elements is always the ____no matter how they are ____ Meaning, water is always ____ 1. The ____ Test: Test for ____ gas. A lit match is brought near the test tube with the gas. If there is a loud sound, the gas was hydrogen.2. ____ tests for carbon dioxide, as it turns ____ in carbon dioxide ____ 1. ____ carbonate + hydrochloric acid -> sodium chloride + ____ + ____ NEUTRALISATION 2. ____ acid + iron ____ -> iron acetate + carbon dioxide + water NEUTRALISATION 3. ____ + oxygen -> iron ____ COMBUSTION OF ____ 4. ____ + oxygen -> carbon dioxide + water COMBUSTION OF FUEL 5. A snap cold pack in a medical kit is being used ____

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