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CHEM120 INTRODUCTION GENERAL ORGANIC BIOLOGICAL CHEMISTRY REVIEW PRACTICE SOLUTION SET 2026 TESTED QUESTIONS WITH VERIFIED ANSWERS GRADE A

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CHEM120 INTRODUCTION GENERAL ORGANIC BIOLOGICAL CHEMISTRY REVIEW PRACTICE SOLUTION SET 2026 TESTED QUESTIONS WITH VERIFIED ANSWERS GRADE A

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CHEM120 INTRODUCTION GENERAL
ORGANIC BIOLOGICAL CHEMISTRY
REVIEW PRACTICE SOLUTION SET 2026
TESTED QUESTIONS WITH VERIFIED
ANSWERS GRADE A
◉ Matter Answer: Anything that has mass and takes up space.


◉ Solid Answer: Has fixed shape and fixed volume. Particles are packed
tightly.


◉ Liquid Answer: Has fixed volume but takes the shape of its container.


◉ Gas Answer: Has no fixed shape or volume. Particles move freely and
spread out.


◉ Plasma Answer: Ionized gas with very high energy.


◉ Translational motion Answer: Particles move from one place to
another.


◉ Rotational motion Answer: Particles spin around.


◉ Vibrational motion Answer: Particles vibrate in place.

, ◉ Physical property Answer: A property you can observe or measure
without changing the substance. Example: color, density.


◉ Chemical property Answer: Describes how a substance reacts or
changes into a new substance. Example: flammability.


◉ Physical change Answer: Change where the substance stays the same.
Example: melting ice.


◉ Chemical change Answer: Change where a new substance forms.
Example: burning methane.


◉ Reactant Answer: Starting material in a chemical reaction.


◉ Product Answer: Substance formed in a chemical reaction.


◉ Exothermic reaction Answer: Releases heat energy.


◉ Endothermic reaction Answer: Absorbs heat energy.


◉ Pure substance Answer: Matter made of only one type of substance.


◉ Element Answer: Pure substance made of one type of atom.

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