1) Is the Law of Conservation of matter EVER broken? a) Yes b) No 2) How many Oxygen atoms are in this molecule? a) 1 b) 2 c) 5 d) 3 3) How many Aluminum atoms are in this molecule? a) 1 b) 2 c) 5 d) 3 4) How many Iron atoms (Fe) are in this molecule? a) 2 b) 3 c) 5 d) 1 5) How many Oxygen atoms (O) are in this molecule? a) 2 b) 3 c) 5 d) 1 6) What are the molecules on the right side of the arrow in a chemical reaction called? a) Reactants b) Products c) Radioactives 7) What are the molecules on the left side of the arrow in a chemical reaction called? a) Reactants b) Products c) Radioactives 8) Which model represents the following chemical formula: CH4 a) b) c) 9) Which model represents the following chemical formula: CH2 a) b) c) 10) What is the smallest unit of matter that retains the properties of an element? a) Atom b) Element c) Molecule d) Compound 11) What is a pure substance made up entirely of one type of atom? a) Atom b) Element c) Molecule d) Compound 12) What is a group of two or more atoms bonded together? , while a compound is a molecule made up of atoms from at least two different elements a) Atom b) Element c) Molecule/ Compound 13) What is a molecule made up of atoms from at least two different elements a) Atom b) Element c) Molecule/ Compound 14) a number placed in front of a chemical symbol or formula that shows how many molecules of the substance are involved in a reaction. a) Coefficients b) Subscript c) Reactant d) Product 15) numbers that are found on the lower right-hand side of each element symbol. a) Coefficients b) Subscript c) Reactant d) Product 16) What is found on the left side of a chemical equation? a) Coefficients b) Subscript c) Reactant d) Product 17) What is found on the right side of a chemical equation? a) Coefficients b) Subscript c) Reactant d) Product

Conservation of Matter 2

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