Question

day 5 new vocabulary and concepts name date match the science vocabulary words to the correct definition. a. balanced equation b. chemical change c. chemical reaction d. coefficient e. physical change f. products g. reactants h. the law of conservation of mass 1. the new substances produced from a chemical reaction and written on the right side of each chemical equation 2. a change in the appearance (state of matter, shape, length, etc.) (no observable change of a substance) 3. a chemical equation that has equal numbers and types of atoms on both reactant and product sides of the equation 4. a change when a new substance is formed (new color, odor, gas, new substance) 5. the process in which the physical and chemical properties of substances are changed when new substances are formed 6. the principle that states the total of the substances before a reaction is equal to the mass of the substances after the reaction 7. the substances in a chemical reaction that are being changed into new substances 8. the number that precedes a chemical formula that indicates the number of molecules

Explanation:

1. Matches the definition of products (new substances from a reaction, right side of equation).
2. Describes a physical change (alters appearance without changing composition).
3. Defines a balanced equation (equal numbers/type of atoms on both sides).
4. Is the definition of a chemical reaction (new substance forms from two+ substances).
5. Defines chemical change (changes physical/chemical properties via new substances).
6. States the Law of Conservation of Mass (mass before = mass after reaction).
7. Defines reactants (substances changed into new substances in a reaction).
8. Describes a coefficient (number before formula showing molecule count).

Answer:

1. F. Products
2. E. Physical Change
3. A. Balanced Equation
4. C. Chemical Reaction
5. B. Chemical Change
6. H. The Law of Conservation of Mass
7. G. Reactants
8. D. Coefficient