Honors Chem Test 1 2025 Questions and
Answers
Matter - ANSWER-Anything that has mass/volume and takes up space
extensive properties - ANSWER-a property that depends on the amount of matter
(ex. Mass, volume)
intensive properties - ANSWER-A property of an element that depends on the
type of matter (color, specific heat, solubility, density, electrical conductivity)
physical properties - ANSWER-Changes in a characteristic of a substance that can
be measured or observed without changing the composition/chemical identity
(state changes, color, hardness, malleability, melting and boiling point, electrical
conductivity)
physical change - ANSWER-Some of the physical properties change but not the
make up of the substance (shape, color, state changes, dissolving)
chemical properties - ANSWER-Changes one type of matter into another type of
matter or the inability to change (flammability, toxicity, reactivity)
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, Chemical changes - ANSWER-a change that produces matter with a different
composition than the original matter
What are the 5 evidences of a chemical change? - ANSWER-A transfer of energy
(endothermic: heat is absorbed/colder; exothermic: heat is released/warmer), a
definite color change, production of gad (fizz, bubbles, odor), formation of water,
formation of a precipitate)
How are the mass of the reactants and the mass of the products of a chemical
reaction related? - ANSWER-the mass of the products is always equal to the mass
of the reactants
Pure substances - ANSWER-have uniform and definite composition and are
further divided into elements and compounds based upon their ability to be
chemically separated
Elements vs. Compounds - ANSWER-elements are a pure substance that cannot
be broken down into simpler substances; a compound are pure substances that can
be broken down
homogeneous mixture - ANSWER-a mixture in which the composition is uniform
throughout; also called a solution (ex. Hershey bar)
heterogeneous mixture - ANSWER-composition is not uniform throughout,
separated into colloids and suspensions (ex. Snickers)
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Answers
Matter - ANSWER-Anything that has mass/volume and takes up space
extensive properties - ANSWER-a property that depends on the amount of matter
(ex. Mass, volume)
intensive properties - ANSWER-A property of an element that depends on the
type of matter (color, specific heat, solubility, density, electrical conductivity)
physical properties - ANSWER-Changes in a characteristic of a substance that can
be measured or observed without changing the composition/chemical identity
(state changes, color, hardness, malleability, melting and boiling point, electrical
conductivity)
physical change - ANSWER-Some of the physical properties change but not the
make up of the substance (shape, color, state changes, dissolving)
chemical properties - ANSWER-Changes one type of matter into another type of
matter or the inability to change (flammability, toxicity, reactivity)
COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
, Chemical changes - ANSWER-a change that produces matter with a different
composition than the original matter
What are the 5 evidences of a chemical change? - ANSWER-A transfer of energy
(endothermic: heat is absorbed/colder; exothermic: heat is released/warmer), a
definite color change, production of gad (fizz, bubbles, odor), formation of water,
formation of a precipitate)
How are the mass of the reactants and the mass of the products of a chemical
reaction related? - ANSWER-the mass of the products is always equal to the mass
of the reactants
Pure substances - ANSWER-have uniform and definite composition and are
further divided into elements and compounds based upon their ability to be
chemically separated
Elements vs. Compounds - ANSWER-elements are a pure substance that cannot
be broken down into simpler substances; a compound are pure substances that can
be broken down
homogeneous mixture - ANSWER-a mixture in which the composition is uniform
throughout; also called a solution (ex. Hershey bar)
heterogeneous mixture - ANSWER-composition is not uniform throughout,
separated into colloids and suspensions (ex. Snickers)
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