CHEM 120 UNIT 8 FINAL EXAM COMPREHENSIVE SCRIPT 2026 COMPLETE ANSWERS GRADED A+

CHEM 120 UNIT 8 FINAL EXAM
COMPREHENSIVE SCRIPT 2026 COMPLETE
ANSWERS GRADED A+

◉ how many pounds does a person who weighs 14.8 stone weight
stone = 14 lbs. Answer: 207 lbs


◉ convert 3.0 cm2 to mm2. Answer: 300 mm2


◉ density. Answer: mass/volume


◉ if 5.32g of ethanol takes up 6.74ml of volume, what is the density
in g/ml. Answer: 0.789 g/ml


◉ matter. Answer: Anything that has mass and takes up space


◉ can you undo a physical change. Answer: yes


◉ can you undo a chemical change. Answer: yes but it is very very
difficult


◉ energy. Answer: the capacity to do work

, cal
joule
kilowatt kwh


◉ law of conservation of energy. Answer: energy is never created or
destroyed


◉ temperatures. Answer: measure of thermal energy
k, c, f


◉ heat. Answer: transfer of thermal energy
joules j


◉ specific heat capacity. Answer: quantity of heat required to change
the temperature of a substance


◉ g=mc change in t. Answer: specific heat capacity


◉ atom. Answer: Smallest particle of an element


◉ element. Answer: A substance that cannot be broken down into
simpler substances