1) Does the image shown follow the Law of conservation of Mass? a) Balanced b) Unbalanced 2) How much mass in grams of Magnesium on the reactant side? a) 3g b) 8g c) 11g 3) What substances are seen only on the reactant side? a) 1 compound b) 2 elements c) 1 element & 1 compound d) 2 compounds 4) The following chemical equation is unbalanced, why? a) It created 3 atoms of Phosphorus  b) It destroyed 5 atoms of Oxygen  c) It created 1 atom of Hydrogen  5) What does the product side represent? a) Old substance, what it started as b) New substance, that went through a chemical change c) Number of molecules 6) What does the reactant side represent? a) Old substance, what it started as b) New substance, that went through a chemical change c) Number of molecules 7) What does the subscript represent? a) Number of atoms b) New substance, that went through a chemical change c) Number of molecules 8) Why is the chemical equation unbalanced? a) Has uneven amounts of Carbon atoms  b) It destoryed two atoms of Hydrogen c) It created 3 atoms of Oxygen 9) Does the image shown follow the Law of conservation of Mass? a) Balanced b) Unbalanced 10) How many molecules in the substance water? a) 1 b) 0 c) 6

Law of Conservation of Mass

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