Matter and Atoms

Question 1

What makes up Matter?

Answer 1

It is made up of smaller particles called atoms

Question 2

What are Atoms?

Answer 2

Tiny particles that make up matter

Question 3

What do atoms make?

Answer 3

Atoms come together to make compounds and molecules

Question 4

What are molecules?

Answer 4

Groups of atoms held together in a particular pattern and proportion

Question 5

Chemical Bonds

Answer 5

Forces that hold atoms together

Question 6

Matter is classified as what?

Answer 6

Substances or mixed substances

Question 7

What are the types of matter?

Answer 7

Solids, liquids, gases, and plasma

Question 8

What is a Substance?

Answer 8

Matter with a specific composition and specific properties.
It can be a single element or a chemical compound.

Question 9

What is a Mixed Substance?

Answer 9

A combination of 2 or more substances in which the substances retain their distinct identities
-A mixture is composed of different types of atoms or molecules that are not chemically bonded.

ex: Gatorade with sugar, dye, salt, water..

Question 10

What are the types of mixed substances?

Answer 10

Homogeneous or heterogeneous

Question 11

Homogeneous

Answer 11

When the mixed substance looks uniform in appearance bc you cannot see the sugar, salt, and etc separately

Question 12

Heterogeneous

Answer 12

When the mixed substance looks ununiform so you can see the different the different types of matter.

ex: coffee bc you can see the sugar separate at the bottom of the coffee

Question 13

Give examples of how a mixture can be separated without changing the identities of the components

Answer 13

Distillation, Filtration, Chromatography

Question 14

Distillation definition

Answer 14

the action of purifying a liquid by a process of heating and cooling

ex: water evaporates faster than salt, and then salt stays behind, so we can get purified water to make the water drinkable

Question 15

Filtration

Answer 15

The process in which solid particles in a liquid or a gaseous fluid are removed by the use of a filter medium

ex: filtering coffee beans from water

Question 16

Chromatography

Answer 16

Separates the components of a mixture by using a nonmoving ‘stationary phase’ (paper) with a moving solvent

Question 17

Diatomics

Answer 17

7 elements that do not exist by themselves

Question 18

Name the 7 Diatomics

Answer 18

Hydrogen, nitrogen, fluorine, oxygen, iodine, chlorine, bromine

Question 19

What are the properties of matter?

Answer 19

Intensive, Extensive, Physical, Chemical

Question 20

Intensive property

Answer 20

a property that is independent of the amount of substance present
Ex: color bc color is intensive from size (Cutting a piece of red paper off, the paper is still red)

Question 21

Extensive property

Answer 21

A property that varies with the amount of substance present like mass, volume, energy. Taking 5 pounds off of something changes the mass or weight of something. Energy also depends on quantity (how much you eat, affects ur energy)

Question 22

Chemical properties

Answer 22

After a Chemical change, the original substance will no longer exist. Like dying your hair, your original hair color can’t come back.
Corrosiveness and flammability are also chemical properties

Question 22

Physical properties

Answer 22

One that can be observed and measured without changing the identity of a substance. Ex: melting butter bc butter is still the same when melting or frozen. Ex: water is the same substance even if it is in a different composition or different state of matter like if it’s freezing or room temp

Question 23

Density equation

Answer 23

Mass divided by volume

Question 24

Density definition

and meaning if more or less dense

Answer 24

a measure of how tightly packed the particles are
-the more dense, you fall to the bottom, the less dense you stay at the top

Question 25

Scientific method steps

Answer 25

observation, question, hypothesis, prediction then testing, if fails new hypothesis and prediction, if good, conclusion than communicate it

Question 26

Mass definition

Answer 26

the measure of the amount of matter in an object or sample