1. The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.
2. According to the LCOM, the mass of reactants and products are equal.
3. All three types of equations (word, skeleton, balanced) can follow the law of conservation of mass, but only balanced chemical equations explicitly show it by having equal numbers of each type of atom on both sides.
4. An open system allows matter and energy to exchange with surroundings; a closed system allows energy but not matter to exchange.
5.
A) 16g
B) 8.0g
C) 10.6g
D) 29.7g
E) 26.8g
F) 12.7g
G) 3.75g
Parent Tip: Review the logic above to help your child master the concept of conservation of mass worksheet answers.
