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2 cards from this section. Quick, good the night before a test.
What is a chemical equation?
Think of it as a sentence in chemistry.
Define reactants.
Where do they appear in a chemical reaction?
What are reactants in a chemical equation?
Think about what you start with.
A balanced equation has equal atoms for each element on both sides.
What does the law say about mass?
Balance the following equation: C₃H₈ + O₂ → CO₂ + H₂O.
Start by balancing carbon, then hydrogen, then oxygen last.
Write both a word and symbolic equation for the reaction of calcium with water to form calcium hydroxide and hydrogen gas.
Think about the products formed from the reactants.
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