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18 Cards in this Set
- Front
- Back
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What is the collision theory |
Chemical reaction always involve the collision of particles. The collision needs sufficient energy to break bonds between particles and form new ones. The collision needs to be at the correct orientation. |
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Law of conservation |
Total mass of reactants = total mass of products |
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Acid |
Substance that produces hydrogen ions (h+) when dissolved in water |
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Base |
Substance that produces hydroxide ions (OH-) when dissolved in water |
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Salt |
When acid reacts with base, salts are produced |
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Physical & chemical Change |
Physical change - change in the appearance, smell Chemical change - change in the composition of the substance. A chemical reaction has taken place |
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Four physical states |
(s) = solid (l) = liquid (g) = gas (aq) = aqueous solution (dissolved in water) |
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Decomposition of a metal carbonate |
When a carbonate decomposes, a metal oxide and carbon dioxide gas are produced. |
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Reaction of metal with Acid |
Reactive metal + acid - Salt + hydrogen gas |
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Acid & metal hydroxide |
Acid + metal hydroxide - Salt + water |
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Acid & Metal Carbonate |
Acid + Metal Carbonate - salt + water + Carbon dioxide |
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Reaction of metal with oxygen |
Metal + Oxygen gas - metal oxide |
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Reactions of metal with water |
(K, Na,Ca) + water - metal hydroxide + hydrogen gas (Mg, Al, Zn, Fe, Ni, Sn, Pb) + Superheated steam - metal oxide + hydrogen gas (Cu, Hg, Ag, Pt, Au) - don't react with water or steam |
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Acid & Hydrogen-carbonate |
Acid + Hydrogen-carbonate - salt + water +carbon dioxide |
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Acid & Metal oxide |
Acid + metal oxide - salt + water |
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Non metal Oxide & metal hydroxide |
Non metal oxide + metal hydroxide - salt + water |
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Test for carbon dioxide |
Bubble the gas through limewater - calcium hydroxide solution. Carbon dioxide turns limewater cloudy white. |
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Test for Hydrogen |
Pop test |
