CHEM 120 EXAM 1 COMPLETE STUDY GUIDE
WITH SOLVED QUESTIONS
◉ Matter.
Answer: anything that has mass and occupies space
◉ Chemical.
Answer: a substance that always has the same composition and
properties wherever it is found/wherever it comes from
◉ What is the scientific method.
Answer: A method that results in a theory/law
◉ Scientific method procedure?.
Answer: 1. Ask a question
2. Background Research
3. Create a hypthesis (testable statement)
4. Test hypothesis
5. Analyze data (graphs)
6. Report results (scientific paper)
-Will result in theory (not proven, can change) or a law (proven,
never changes)
,◉ How do you solve for a percentage?.
Answer: You divide part/whole and then multiply the numbers by
100%
◉ What are the 2 units of measurement?.
Answer: 1. Metric System
2. International system of units (SI)
◉ Metric units for length, volume, mass, temp., and time.
Answer: 1. Length: Meter (m)
2. Volume: Liter (L)
3. Mass: Gram (g)
4. Temp: Degree Celsius (*c)
5. Time: Second (s)
◉ SI units for length, volume, mass, temp, and time.
Answer: 1. Length: Meter (m)
2. Volume: Cubic Meter (m^3)
3. Mass: Kilogram (Kg)
4. Temp: Kelvin (K)
5. Time: Second (s)
, ◉ Units you will most commonly use?.
Answer: Kilo- 1000 (K), Centi- 0.01 (c), and milli- 0.001 (m)
◉ How many grams in 1 Kg?.
Answer: 1000g
◉ How many cg in 1 gram?.
Answer: 100cg
◉ How many mg in 1 gram?.
Answer: 1000mg
◉ Volume.
Answer: The amount of space a substance occupies
◉ Mass.
Answer: A measure of the quantity of material an object contains
*Stays the same but weight changes*
◉ Temperature.
Answer: The measure of the amount of heat energy in an object
WITH SOLVED QUESTIONS
◉ Matter.
Answer: anything that has mass and occupies space
◉ Chemical.
Answer: a substance that always has the same composition and
properties wherever it is found/wherever it comes from
◉ What is the scientific method.
Answer: A method that results in a theory/law
◉ Scientific method procedure?.
Answer: 1. Ask a question
2. Background Research
3. Create a hypthesis (testable statement)
4. Test hypothesis
5. Analyze data (graphs)
6. Report results (scientific paper)
-Will result in theory (not proven, can change) or a law (proven,
never changes)
,◉ How do you solve for a percentage?.
Answer: You divide part/whole and then multiply the numbers by
100%
◉ What are the 2 units of measurement?.
Answer: 1. Metric System
2. International system of units (SI)
◉ Metric units for length, volume, mass, temp., and time.
Answer: 1. Length: Meter (m)
2. Volume: Liter (L)
3. Mass: Gram (g)
4. Temp: Degree Celsius (*c)
5. Time: Second (s)
◉ SI units for length, volume, mass, temp, and time.
Answer: 1. Length: Meter (m)
2. Volume: Cubic Meter (m^3)
3. Mass: Kilogram (Kg)
4. Temp: Kelvin (K)
5. Time: Second (s)
, ◉ Units you will most commonly use?.
Answer: Kilo- 1000 (K), Centi- 0.01 (c), and milli- 0.001 (m)
◉ How many grams in 1 Kg?.
Answer: 1000g
◉ How many cg in 1 gram?.
Answer: 100cg
◉ How many mg in 1 gram?.
Answer: 1000mg
◉ Volume.
Answer: The amount of space a substance occupies
◉ Mass.
Answer: A measure of the quantity of material an object contains
*Stays the same but weight changes*
◉ Temperature.
Answer: The measure of the amount of heat energy in an object
