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Chem 120 Test 1 (JMU) Exam with complete solutions 2024_2025
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Chem 120 Test 1 (JMU) Exam with complete solutions 2024_2025
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Chem 120 Test 1 (JMU) Exam withcomplete solutions 2024/2025
Chemistry - ANSWER-The study of matter and the changes it undergoes
Matter - ANSWER-Anything that has mass and occupies space
Element - ANSWER-Basic material that can NOT be broken down into simpler
substance
What is matter made up of? - ANSWER-Atoms and Molecules
Density of water - ANSWER-1.00g/mL
1 kg = ? lbs - ANSWER-2.205 lb
1 meter = ? in - ANSWER-39.37 in
1 in = ? cm - ANSWER-2.54 cm
Precision - ANSWER-Being consistent, but not right
Accuracy - ANSWER-How close a measurement is to the true value
Volume - ANSWER-The amount of space a substance occupies
Mass - ANSWER-Measure of the quantity of material it contains
Weight - ANSWER-Measure of the gravitational pull on an object
, In Celsius, what temperature does water freeze and boil at? - ANSWER-0°C, 100°C
In Fahrenheit, what temperature does water freeze and boil at? - ANSWER-32°F,
212°F
High fever in Fahrenheit, Celsius, and Kelvin? - ANSWER-104°F, 40°C, 313K
Hypothermia in Fahrenheit, Celsius, and Kelvin? - ANSWER-95°F, 35°C, 308K
Normal body temp in Fahrenheit, Celsius, and Kelvin? - ANSWER-98.6°F, 37°C,
310 K
Celsius to Fahrenheit - ANSWER-°F = (°C x 9/5) + 32
Fahrenheit to Celsius - ANSWER-°C = (°F - 32) x 5/9
10^3 - ANSWER-K
10^6 - ANSWER-M
10^-1 - ANSWER-d
10^-2 - ANSWER-c
10^-3 - ANSWER-m
10^-6 - ANSWER-µ
Formula for Density - ANSWER-D = m/v
Specific gravity - ANSWER-Density of sample / density of water
Pure substance - ANSWER-Matter that has a fixed composition and definite
constant properties
Element (pure substance) - ANSWER-The simplest form of matter, composed of
only one type of material, made up of atoms
Compound (pure substance) - ANSWER-composed of two or more elements
CHEMICALLY combined always in the same proportion, made up of molecules
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