3.1.1 - Conservation Of Mass + Balanced Chemical Equations
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1
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What is the law of conservation of mass?
It states that no atoms are lost or made during a chemical reaction so the mass of the products equals the mass of the reactants.
2
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If the total mass of all the reactants involved in a chemical reaction was 60 grams (g), what will be the total mass of all the products?
60 grams (g) because:
mass of products = mass of reactants
3
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A chemical equation is balanced in terms of what?
The number of atoms of each element involved on both sides of the equation.
4
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Write a balanced equation of magnesium reacting with hydrochloric acid.
Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g)
Note 
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