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12 questions from this quiz
Mass of reactants = mass of products
Atoms are rearranged, not created/destroyed
Same no. of each atom on both sides
Coefficients
Write the unbalanced equation
2
N2+3H2→2NH3N_2 + 3H_2 \rightarrow 2NH_3N2+3H2→2NH3
6
Check your work by counting atoms again
Total mass of all atoms in a compound
Add up ArA_rAr of all elements in compound
Sum of MrM_rMr of reactants = sum of products
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