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ADV CHEM
Unit 6 Part 1 Test: 2/21
Question | Answer |
---|---|
indicators of chemical reactions | emission of light or heat formation of a gas formation of a precipitate color change emission of odor |
reactants | original substance |
product | resulting substance |
law of conservation of mass | mass cannot be created or destroyed |
single replacement | A +BC -> AC + B |
double replacement | AB + CD -> CB + AD |
synthesis | A + B -> AB |
decomposition | AB -> A + B |
combustion | carbon reacts with oxygen C + O -> CO2 + H2O |
hydrocarbon | hydrogen and carbon together needed for combustion |
effects of double replacement | precipitation gaseous reaction water |
diatomic elements | hydrogen nitrogen oxygen fluorine chlorine bromine iodine |