put host here Chapter 1 Vocabulary Chapter 1 Key Points

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Chapter 1 Vocabulary

Chapter 1 Key Points

Chapter 2 Vocabulary

Chapter 2 Key Points

Chapter 4

Calculations

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What is matter?

Anything that has mass and

occupies space

What is the study of the composition of matter?

Chemistry

Which branch of chemistry deals with the rate when matter undergoes a change?

Physical chemistry

What is research that is directed

toward a practical goal or

application?

Applied Chemistry

What is a well-tested explanation

for a set of observations?

Theory

How is chemistry

useful?

Explains the natural world, prepares people

for career opportunities, and produces informed

citizens

What are the steps in the

scientific method?

Making observations,

testing hypotheses, and developing

theories

How do chemists study the universe?

They gather data and analyze

matter brought back to Earth

Who helped transform chemistry

to the science of measurement that it

is today?

Lavoisier

What are the five traditional areas

of study in chemistry?

Organic, inorganic,

biochemistry, analytical, and

physical

What is the measure of the

amount of matter an object contains?

Mass

The property that depends on the type of

matter

Intensive

What can be observed without

changing the substance’s

composition?

Physical property

What can be compressed?

Gas

What is a phase?

Any part of a sample with

uniform composition and

properties

What are the three states of

matter?

Solid, liquid, and gas

What are the two types of

physical changes?

Reversible and

irreversible

Extensive or intensive? Plastic vs

paper bags

Intensive

What has to happen in a

chemical change?

The composition

has to change

What are four possible clues to a chemical

change?

Transfer of energy, colour change, production of a

gas, or a precipitate

Who believed atoms were

indivisible and indestructible?

Democritus

What are the three types of

subatomic particles?

Electrons, protons, and

neutrons

What two subatomic

particles have almost the same

weight?

Protons and neutrons

What does the atomic

number refer to?

The number of protons

What makes up most of the volume of an

atom?

The electrons

How many protons, neutrons, and

electrons are there in fluorine-19?

9, 10, 9

How many protons, neutrons, and electrons are

there in Manganese-55?

25, 30, 25

Argon has three isotopes with mass number 36, 38, and

40. Which isotope is the most abundant?

Argon-40

Chlorine-35 (34.97amu, 75.77%)

Chlorine-37 (36.97amu, 24.23%)

Find atomic mass

35.45amu

78.92amu (50.69%) and 80.92amu (49.31%) Find atomic mass of

bromine

79.91amu

Law of Conservation

of Mass

Oxygen and hydrogen react to form water.

6g of hydrogen produced 54g of water.

How much oxygen was used?

48g