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Part2
Question | Answer |
---|---|
tells how many atoms , molecule , or formula units take part in the reaction | coefficient |
write the correct symbols and formulas | first step in balancing an equation |
count atoms on both sides of the equations | second step in balancing an equation |
place coefficient in front of the symbols and formulas to balance the numbers of atom | third step in balancing an equation |
two hydrogen atoms and one oxygen atom | H2O |
two hydrogen atoms and two oxygen atoms | H2O2 |