Chemistry

Seating Chart

Syllabus

Isolate Terms

AB = CDE

X Y

Scientific Method

•A systematic method for performing

research

Scientific Method

•Observing

•Hypothesizing

•Experimenting

•Analyzing

Hypothesis

•An educated guess

Variables

•Anything that can be changed in an

experiment

Independent Variable

•The variable that is changed by the

person doing the experiment

Dependent Variable

•A variable that changes due the effects

of the independent variable being changed

Scientific Law

Any fact that has been proven

beyond any doubt

Scientific Theory

•An idea that is supported by much scientific data and is accepted by the

scientific community as correct, but cannot be

proven

Problem Solving

What do you have?

•Identify what’s given

•List the variables

What do you want?

•Identify what’s being asked for

How do you get it?•Identify a formula or algorithms that can be used to solve the problem

Chemistry

•The study of matter

Matter•Anything that:• takes up space•has mass•has inertia

Mass•The measure of

matter in an object

Types of Matter•Pure: one kind of substance

•Mixture: 2 or more substances

Substance•A specific type

of matter

Pure Substances

•Elements

•Compounds

Element•Any pure substance

that contains only one kind of atom

Compound•A pure substance made

up of 2 or more elements chemically

combined

Mixture•A Physical blend

of substances

Mixture•Each part retains

its properties

Mixtures•Heterogeneous

•Homogenous

Heterogeneous Mixture

•Made up of multiple phases

•Non-uniform

Phase

•Any physically separate part of a

substance

Interface

•Where two phases come

together

Homogeneous Mixture

•Made up of only one phase

•Uniform throughout

Solution

•Homogeneous mixture

Solute

•Any of the lesser portions of a solution

•What has been dissolved

Solvent•The larger portion of a solution

•What is doing the dissolving

Separating Mixtures•Filtration

•Distillation

•Precipitation

•Chromatography

Filtration

•Separation by size

•Passing through pores

Distillation•Separation by differences in B.P.

•Boil & collect

Precipitation

•Separation by differences in solubility

•Allow solutions to ppt

Chromatography

•Separation through charge or polarity differences

•Separating ink on paper

List and describe all types of pure

substances

List and describe all types of mixtures

Classify each of the following as:

Pure: element or compoundMixture: hetero. or homo

• Air, water, mud, the sea, aluminum, orange juice, brass, gold

Matter•Work problems 1 - 4 on page 23