Common-Core/ Grade 8
Science MCQ Based On Calculate amounts of reactants or products in chemical reactions
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Common-Core Grade 8 - 8 Calculate amounts of reactants or products in chemical reactions
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During a chemical reaction, atoms are not created, destroyed, or changed from one chemical element to another.
Count the Atoms
Write a balanced chemical equation first.
Products are formed after reaction of reactions in fixed ratio.
Write a balanced chemical reaction first.
The number of atoms on the reactant side is equal to the number of atoms on product side.
Balance the chemical reaction.
Mass can neither be created nor be destroyed in a chemical reaction.
In a balanced chemical equation, a number of atoms on the reactant side and product side are equal so a balanced chemical equation gives us right information about the reaction.
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