Branches of Chemistry
Mixture or substance?
States of Matter
Physical vs. Chemical
Chemical Reactions
100
Concerned with chemistry of carbon
What is organic chemistry?
100
Samples all have identical composition and intensive properties
What is a substance?
100
Large separation between particles. Particles bounce off each other and the walls of their container
What is a gas?
100
A change that results in new substances being formed
What is a chemical change?
100
The stuff you start with
What are reactants?
200
Concerned with mechanism, rate, and energy transfer in chemical reactions
What is physical chemistry?
200
Oxygen
What is a substance?
200
Particles are crowded together in an orderly arrangement; particles don't move far from "home."
What is a solid?
200
Changing from solid to liquid
What is a physical change?
200
The substances that come out of a chemical reaction
What are products?
300
Concerned with processes that take place in organisms
What is biochemistry?
300
Air
What is a mixture?
300
Particles are crowded together, but still have enough energy to flow past one another.
What is a liquid?
300
The burning of paper
What is a chemical change?
300
Two indicators that a chemical reaction might be happening
What are (1) color change; (2) gas formation; (3) precipitate formation; (4) transfer of energy (pick two)
400
Focus on the composition of matter
What is analytical chemistry?
400
Composition is not definite
What is a mixture?
400
Adopts the shape and volume of its container
What is a gas?
400
Basis for separating mixtures
What is a physical property?
400
The rule that states that the total material that goes into a chemical reaction is the same as the total that comes out
What is the Law of Conservation of Mass (or Matter)?
500
Study of chemicals that do not, in general, contain carbon
What is inorganic chemistry?
500
Different types of atoms bonded together chemically
What is a compound?
500
Has a constant volume but adopts the shape of its container
What is a liquid?
500
The law that says any sample of a _substance_ has the same composition as any other sample of the same substance
What is the Law of Definite Compostion?
500
the only way to know if a chemical reaction has occurred
What is "check if a new substance has been formed"?
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