Introduction to Matter
What is matter?
Anything that that has mass and takes up space
What are the 3 states of matter?
Solid, Liquid, and Gas
What is at the center of an atom?
A nucleus
What are the 2 properties of matter?
Physical and chemical properties
What is a mixture?
A solution, colloid, or suspension based on the size of it's largest particles
Hardness, texture, temperature, and color are examples of properties?
Physical Properties
What are the particles of a solid like?
They are tightly packed and in a fixed position.
What is in the nucleus?
Protons and neutrons
What is a chemical change?
When the atoms rearrange to form a new substance or substances
When sand is not completely dissolved into water what is it called?
A suspension.
How do you calculate density?
Density=Mass/Volume
How do you find pressure?
Pressure = Force/Area
What is a atomic number?
The number of protons in the atom
Would cutting a apple be a physical or chemical change?
Physical change
What forms when particles of a solute separate from each other and become surrounded by particles of the solvent?
A solution