Question 1
If 33.0 g of O2 are mixed with 33.0 g of H2 and the mixture is ignited, what mass of water is produced?
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33.0 g◦
37.2 g◦
58.6 g◦
18.6 g◦
66.0 gQuestion 2
In balancing an equation, we change the __________ to make the number of atoms on each side of the equation balance.
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formulas of compounds in the reactants◦
coefficients of compounds◦
formulas of compounds in the products◦
subscripts of compounds◦
none of these are correct