chemical reactions and equations
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8 Terms
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What is a chemical equation?
Representation of a chemical reaction using symbols and formulas.
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Difference between skeletal and balanced equation?
Skeletal: unbalanced atoms. Balanced: equal atoms of each element on both sides.
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Example of combination reaction?
2Mg + 02 → 2MgO
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Example of displacement reaction?
Zn + CuSO, → ZnSOa+ Cu
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Example of double displacement reaction?
AgNO, + NaCI → AgCI + NaNO3
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Example of redox reaction?
A: CuO + H2 → Cu + H,O (CuO reduced, Hz oxidized).
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What is corrosion?
Gradual deterioration of metals by chemical action, e.g. rusting of iron.
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What is rancidity?
Oxidation of oils/fats in food → bad smell & taste.
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