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10 questions from this quiz
Mass of reactants equals mass of products
They are rearranged to form new substances
Same no. of atoms on both sides needed
Numbers in front of formulas
Write the unbalanced equation
3
N2+3H2→2NH3N_2 + 3H_2 \rightarrow 2NH_3N2+3H2→2NH3
6
Total mass of all atoms in a compound
Add up relative atomic masses (ArA_rAr)
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