Chemistry Study Guide
Chapter 1 Section 1
What is matter?
Matter is the tiny particles that make up almost everything in the universe.
What are the 3 states or phases of matter?
Solid, liquid, and gas
What is a characteristic property?
The quality of a substance that holds true no matter the sample
What is the boiling point? Why is it a characteristic property?
212 F and 100 C The boiling temp will always be the same and will never change
What is the melting point? Why is it a characteristic property?
The temperature at which solids melt. Because the temp is constant and does not change
What ischemical activity? Why is it a characteristic property?
The changes substances undergo. Because it is a specific chemical change so it will always be the same.
Be able to read a table of boiling and melting pts and tell what phase a substance would be in.
What is physical change? Provide an example.
It is a change in a substance’s physical form but not its chemical identity. Ex: boiling away a pot of water.
What is chemical change? Provide an example.
Change that alters notonly it physical form but chemical form. Burning wood
What are the 2 main categories of matter?
Mixtures and pure substances
What is a mixture? How is it different from a solution? Provide examples.
Mixture is 2 or more substances that are not chemically combined. Mixture is not as well blended as a solution. Mixiture=bag of skittles, solution=sugar water
What is a compound? How is it different from a mixture? Provide examples.
Compound is a pure substance formed from chemical compound two or more elements. The difference is that a mixture is not chemically combined. Ex. Co2
What is an element?
The basic building blocks of matter that cannot be broken down
What is mass? What units are used to measure mass?
The measure of how much matter is in an object. Grams, kilograms
What is weight? How is it different...