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Apologia Chem M 6B

Apologia Chemistry M 6B: Changes in Matter and Chemical reactions

QuestionAnswer
Chemical equations form the basis for most of the work done in chemistry.
reactants substances on the left side of a chemical equation; they REACT together
products atoms/molecules on the right side of a chemical equation; the substances PRODUCED by the reaction
An unbalanced chemical equation will result in NOT all products being made or in LEFTOVER atoms (or both).
The COEFFICIENTS in a chemical equation tell us how many of each molecule we are dealing with.
The SUBSCRIPTS in a chemical equation are a part of the molecule's chemical formula.
An equation is balanced if the # of each type of atom on the REACTANTS side of the equation equals the # of that type of atom on the PRODUCTS side of the equation.
You alter the number of molecules involved in an equation by CHANGING the _________________ that appear to the left of each molecule. coefficients
When balancing equations, you CANNOT change the numbers that appear in the SUBSCRIPTS.
When balancing equations, START with atoms that appear in only 1 molecule on each side of the equation.
You absolutely must be able to balance chemical equations before you can continue to Module 7!
Created by: MrsHough
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