Foundations Lecture 1 & 2

Question 1

Matter

Answer 1

Is anything that has mass and occupies space

Question 2

Mass

Answer 2

Is physical stuff that can be pulled on by gravity

Question 3

Gas

Answer 3

Takes shape and volume of its container

Question 4

Plasma

Answer 4

Liquid part of blood
AND a flexible outer part of a cell

Question 5

Atoms

Answer 5

The basic unit of matter

Question 6

Protons

Answer 6

Have positive charge and mass located inside the nucleus

Question 7

Neutrons

Answer 7

Have mass but no charge
Located inside the nucleus

Question 8

Electrons

Answer 8

Have a negative charge and no mass
Located outside of the nucleus

Question 9

Molecule

Answer 9

Is made when 2 or more atoms bind together by giving or sharing electrons

Question 10

Law of Conservation of Matter

Answer 10

Matter is neither created nor destroyed

Question 11

Physical Properties

Answer 11

Can be observed without changing the composition of material

Question 12

Examples of physical properties

Answer 12

Boiling, melting, solubility, color, odor

Question 13

Chemical properties

Answer 13

Determine how a substance can be converted into another substance

Question 14

Chemical change or Reaction

Answer 14

Is the change of one substance into another

Question 15

Pure substance

Answer 15

Something with constant composition

Question 16

Element

Answer 16

Most basic category of matter

Material that’s can not be broken down into a simpler substance by chemical change

Question 17

Compound

Answer 17

Molecule made up of two or more different elements

Question 18

Homogeneous

Answer 18

Uniform composition throughout
(Also known as a solution)

Question 19

Aqueous solution

Answer 19

A solution based on water

Question 20

Heterogeneous

Answer 20

Not uniformed; varying amounts in different parts of the mixture

Question 21

What state of matter can change shape but can’t be compressed?

Answer 21

Liquid

Question 22

Accuracy

Answer 22

Reflects how close the measurement is to the true value of

Question 23

Precision

Answer 23

Reflects how close different measurements with the same instrument are to each other

Question 24

Meniscus

Answer 24

Curved surface of liquid used for measuring volume