Definitions
What is matter?
anything with mass and volume
What is the difference between a chemical and physical property?
You can observe a physical property without changing the substance, while a chemical property can only be observed when the substance is changed.
Is light a form of matter?
No
Give the formula for calculating density
density=mass/volume
Which state of matter is the most definite?
Solid
What is chemistry?
the study of matter and how it changes
Is density a chemical or physical property?
Physical property
Which of these are chemical reactions?
1. Wood Burning, 2. Paper tearing, 3. Metal changing color, 4. Food in a blender
1. Wood Burning, and 3. Metal changing color
Something has a volume of 20 mL³ and has a mass of 500g, find the density
25 g/mL³
What is the process of going from Gas to Solid?
Deposition
What is a property?
something that describes matter
Does a substance with low or high viscosity flow more easily?
Low Viscosity
Which of these are mixtures? Salt, Bronze, Tap water, Oxygen
Bronze and Tap water
Something has a density of 396g and a volume of 18 mL3, find its mass
7,128g
What are the boiling and freezing points of water? (In Celcius)
0oC and 100oC
What is a chemical change?
A change that causes a change to the identity of a substance
A ring starts rusting after touching water. What change is this and is it physical or chemical?
Oxidation - Chemical
Salt dissolves in water. What is this an example of?
Physical Change, Turning into a solution
Something has a density of 198 g/mL3 and a mass of 56g, find the volume.
0.28 mL3
What is going from solid to gas called?
Sublimation
What is combustion?
The process of burning something
Sodium and Potassium explode when in contact with water. What property is this, and is it physical or chemical?
Reactivity - Chemical
Classify each as a colloid, suspension, or solution:
1. Oobleck, 2. Antifreeze, 3. Paint, 4. Ocean water
1. Colloid, 2. Solution, 3. Suspension, 4. Solution
Something has a density of 1983 g/mL3 and a mass of 2896, find the volume
1.4604g
What do particles look like in solid, liquid, and gas?
Solid: Packed together, vibrating; Liquid: sliding past each other; Gas: Freely moving around