Practice Classification and Properties of Matter Problems

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Classify each change as physical or chemical. a. sugar burns when heated in a skillet b. sugar dissolves in water c. a platinum ring becomes dull because of continued abrasion d. a silver surface becomes tarnished after exposure to air for a long period of time

a. chemical b. physical c. chemical d. chemical

Classify each property as physical or chemical. a. the tendency of ethyl alcohol to burn b. the shine on silver c. the odor of paint thinner d. the flammability of propane gas

a. chemical b. physical c. physical d. chemical

Classify each of the listed properties of rubbing alcohol as physical or chemical. a. colorless b. flammable c. liquid at room temperature d. density = 0.79g/mol e. mixes with water

a. physical b. chemical c. physical d. physical e. physical

Classify each substance as a pure substance or a mixture. If it is a pure substance, classify it as an element or a compound. If it is a mixture, classify it as homogenous or heterogenous. a. aluminium b. apple juice c. hydrogen peroxide d. chicken soup

a. pure substance and element b. mixture and homogenous c. pure substance and compound d. mixture and heterogenous

Classify each substance as a pure substance or a mixture. If it is a pure substance, classify it as an element or a compound. If it is a mixture, classify it as homogenous or heterogenous. a. sweat b. carbon dioxide c. aluminum d. vegetable soup

a. sweat is a mixture and homogenous b. carbon dioxide is a pure substance and a compound c. aluminum is a pure substance and an element d. vegetable soup is a mixture and is heterogenous


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