Chapters 1, 10, 12 - Matter And Change, States of Matter, Solutions

Question 1

What is chemistry?

Answer 1

The study of matter and its properties, composition, structure, and change

Question 2

What is organic chemistry?

Answer 2

Carbon chemistry

Question 3

What is inorganic chemistry?

Answer 3

All non-carbon chemistry (metals)

Question 4

What is physical chemistry?

Answer 4

Properties/changes of matter and their relation to energy

Question 5

What is analytical chemistry?

Answer 5

Identification of a material’s composition

Question 6

What is biochemistry?

Answer 6

Chemistry of living things

Question 7

Define chemical

Answer 7

Any substance that has a definite composition

Question 8

Whats the difference between basic and applied research?

Answer 8

Basic research is for the sake of increasing knowledge, an example is climate research. Applied research is to solve a specific problem, an example is solar cell research.

Question 9

What is mass?

Answer 9

A measure of the amount of matter in a substance

Question 10

What is matter?

Answer 10

Anything that has mass and takes up space (volume)

Question 11

What’s the difference between an element and a compound??

Answer 11

An element is a pure substance cannot be broken down into a simpler, stable substance. A compound can be broken down to simpler stable substances

Question 12

What’s the difference between extensive and intensive properties with 2 examples?

Answer 12

Extensive properties depend on the amount of matter present (mass and volume) while intensive properties do not (density and melting point).

Question 13

Reactants are on the _____ side

Products are on the _____ side

Answer 13

Left

Right

Question 14

What’s the difference between a pure substance and a mixture?

Answer 14

A pure substance has a fixed composition. A mixture is a blend of 2 or more consequent matter, each with their own identity and property.

Question 15

What’s the difference between a homogeneous mixture and a heterogeneous mixture? Give examples

Answer 15

A homogeneous mixture is a solution that has a uniform composition (salt water). A heterogeneous mixture doesn’t have a uniform composition (cereal)

Question 16

What does soluble mean

Answer 16

Is able to be dissolved

Question 17

What’s a solvent?

Answer 17

The Thing doing the dissolving.

Question 18

What is a solute?

Answer 18

The thing being dissolved

Question 19

What’s a colloid? Example of an aerosol:

Answer 19

A mixture of Intermediate sized particles that remain suspended (smoke)

Question 20

What is the Tyndall effect? Give one example from everyday life.

Answer 20

Dispersed colloid particles scatter light causing the colloid to appear cloudy or opague. ( Headlights in fog)

Question 21

What’s the Brownian motion?

Answer 21

The erratic, jerky, random movement of dispersed particles in a liquid colloid.

Question 22

What is an electrolyte? What is an example

Answer 22

An electrolyte is a solid that dissolves in water to give an electric current. (Sodium chloride)

Question 23

How do you go from a gas to a solid?

Answer 23

Deposition

Question 24

How do you go from a solid to a gas??

Answer 24

Sublimation

Question 25

How do you go from a gas to a liquid

Answer 25

Condensation