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→Examples
===Examples===
Methane + Oxygen → Water + Carbon Dioxide
CH<sub>4</sub> + 2O<sub>2</sub> → 2H<sub>2</sub>O + CO<sub>2</sub>
16g + 64g = 36g + 44g
Sodium Hydroxide + Hydrochloric Acid → Sodium Chloride + Water
NaOH + HCl → NaCl + H<sub>2</sub>O
40g + 36.5g = 58.5 + 18g
===Calculating the Mass of a missing Product/Reactant===
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Find the [[mass]] of [[Calcium Oxide]] [[product|produced]] in the following [[Chemical Reaction|reaction]]:
CaCO<sub>3</sub> → CaO + CO<sub>2</sub>
25g = x + 11g
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Find the [[mass]] of [[Carbon Dioxide]] [[product|produced]] in the following [[Chemical Reaction|reaction]]:
CH<sub>4</sub> + 2O<sub>2</sub> → 2H<sub>2</sub>O + CO<sub>2</sub>
4g + 16g = 9g + x
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Find the [[mass]] of [[Hydrochloric Acid]] needed in the following [[Chemical Reaction|reaction]]:
NaOH + HCl → NaCl + H<sub>2</sub>O
160g + x = 234g + 72g
|-
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x = 25g - 11g
x = 14g
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20g = 9g + x
x = 20g - 9g
x = 11g
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160g + x = 306g
x = 306g - 160g
x = 146g
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