Semester Two Exam Reveiw
暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
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What is mass
How much matter is in something
What is volume
How much space it takes up
What is matter
Anything that has mass and volume
What is density
The relationship of mass divided by the volume. It is measured in g/cm3 or g/ml. It helps you figure out what sinks and what floats
What are the three states of matter
Solid Liquid Gas
What is viscosity
A liquids resistance to flow
What is surface tension
A force that acts on the particles at the surface of a liquid
What is liquid
The state of matter that has a definite volume take the shape of its container
What is a solid
The state of matter that has a definite shape and volume
What is gas
The state of matter that has no definite volume of shape
What is boyles law
States that the volume of a gas is directly proportional to the pressure of a gas when temperature is constant
What is Charles law
Sates that the volume of a gas is directly proportional to the temperature of a gas when pressure is constant
What is melting
The change of stat by which a solid becomes a liquid by adding energy
What is freezing
The change of state from liquid to solid
What is evaporation
Liquid to gas
Condensation
Gas to liquid
Sublimation
Solid to gas
Deposition
Gas to solid
Element
A substance that cannot be separated or broken down into simpler substances by chemical means Ex.-oxygen, helium, carbon
Metal
An element that is shiny and that conducts heat and electricity Ex. Tin, copper, lead
Nonmetal
An element that conducts heat is electricity poorly Ex. Sulfur, neon, iodine
Metalloid
An element that has properties of both metals and nonmetals Ex.boron, silicon, antimony
Compound
A substance made up of atoms of two or more different elements joined by chemical bonds.
How can compounds be separated
Only be chemical changes.