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2 cards from this section. Quick, good the night before a test.
What is the first step in balancing a chemical equation?
Think about what you start with before counting any atoms.
In the equation H₂ + O₂ → H₂O, how many hydrogen atoms are on the left side?
Look at the formula for hydrogen.
What must be equal on both sides of a balanced chemical equation?
It's about what we start with and what we end up with.
Balancing chemical equations involves changing which part?
What do you modify in an equation?
Balance the following equation: C₃H₈ + O₂ → CO₂ + H₂O.
Count how many carbons, hydrogens, and oxygens you have after balancing.
Balance the reaction: P₄ + O₂ → P₂O₅
Start with phosphorus, then balance oxygen last!
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