Physical / Chemical Properties

Question 1

what is a mixture?

Answer 1

a substance made up of at least 2 different types of particles

Question 2

what type of substance would milk be

Answer 2

a mixture

Question 3

what type of substance would tap water be

Answer 3

a mixture

Question 4

what type of substance would sugar and water be

Answer 4

a mixture

Question 5

what type of mixture would the pacific ocean be

Answer 5

a mixture

Question 6

what type of substance would air be

Answer 6

a mixture

Question 7

what type of substance has at least 2 type of particles

Answer 7

a mixture

Question 8

what is a pure substance

Answer 8

a substance that only has one type of particles

Question 9

what type of substance has only one type of particle

Answer 9

a pure substance

Question 10

what type of substance would copper be

Answer 10

a pure substance

Question 11

what type of substance would hydrogen gas be

Answer 11

a pure substance

Question 12

what type of substance would pure water be

Answer 12

a pure substance

Question 13

what type of substance would acetylene (C2H2) be

Answer 13

a pure substance

Question 14

what type of substance would water (h2o) be

Answer 14

a pure substance

Question 15

what type of substance would Benzene (C6H6) be

Answer 15

a pure substance

Question 16

tap water can further be classified as…

Answer 16

homogenous

Question 17

concreate can further be classified as…

Answer 17

homogenous

Question 18

pure water and salt can further be classified as…

Answer 18

homogenous

Question 19

iron filling (fe) can further be classified as…

Answer 19

element

Question 20

limestone (caco3) can further be classified as…

Answer 20

compound

Question 21

pulp orange juice can further be classified as…

Answer 21

heterogenous

Question 22

the pacific ocean can further be classified as…

Answer 22

homogenous

Question 23

air can further be classified as…

Answer 23

homogenous

Question 24

benezene (C6H6) can further be classified as…

Answer 24

compound

Question 25

baking soda (NahCO3) can further be classified as...

Answer 25

compound

Question 26

carbon (c) can further be classified as...

Answer 26

element

Question 27

neon (N) can further be classified as...

Answer 27

element

Question 28

what is an element

Answer 28

is a pure substance that only has one type of atom

Question 29

what is a compound

Answer 29

pure substance that have 2 or more chemically combined elements

Question 30

what is a heterogenous mixture

Answer 30

is a mixture that has more than one phase where you can see different parts of a mixture

Question 31

what is homogenous mixture

Answer 31

has one phase and you cant see the different parts of the mixture

Question 32

what is a solute

Answer 32

is a substance that dissolves the solvent

Question 33

what is a solvent

Answer 33

is a substance that dissolves in the solute

Question 34

what are the 5 ideas of the Particle Theory Of Matter

Answer 34

all matter is made of tiny particles different substances are made of different kinds of particles particles are always in motion particles attract particles move faster while heated

Question 35

what are physical properties?

Answer 35

a characteristic of a substance that can be determined without changing the composition

Question 36

what are Quantitative properties

Answer 36

properties of a substance that is measured and uses numbers

Question 37

what are qualitative properties

Answer 37

substance that is observed with senses

Question 38

what is malleability

Answer 38

ability to be hammered into a thinner sheet

Question 39

what is ductility

Answer 39

the ability for a substance to be drawn into a finer strand

Question 40

what is electrical conductivity

Answer 40

the ability for electric current to pass through

Question 41

is "the boiling point for water 100 degrees" a physical for chemical property

Answer 41

physical

Question 42

is "pancakes cooking" a physical change or a chemical change

Answer 42

chemical

Question 43

is "paper towels absorbing water" a physical or chemical change

Answer 43

physical

Question 44

is "silver tarnishing" a physical or chemical change

Answer 44

chemical

Question 45

what are chemical properties

Answer 45

is a substance that can describe how one substance can interact with another substance to produce a new substance with new properties

Question 46

what is heat of combustion

Answer 46

a substance that can burred but requires more effort

Question 47

what is toxicity

Answer 47

the degree of how dangerous a substance is to your health or the environment

Question 48

what is acidity

Answer 48

measured the pH scale

Question 49

what are the signs of a chemical change

Answer 49

a change of colour a change of odour gas is produced a new solid is formed change in temperature and light

Question 50

how is baking soda a chemical property

Answer 50

it causes food to rise while cooking

Question 50

how is baking soda a chemical property

Answer 50

it causes food to rise while cooking

Question 50

how is baking soda a chemical property

Answer 50

it causes a reaction with another substance to form a new one

Question 51

what are ways to identify a change in a chemical substance

Answer 51

density freezing and melting point boiling point

Question 52

what is density

Answer 52

is the measure of how much mass is contained in a given unit

Question 53

how to you calculate the density of a substance

Answer 53

diving the mass by its volume

Question 54

what is the freezing point

Answer 54

the temperature at which a substance turns from a liquid to a solid

Question 55

what is the melting point

Answer 55

the temperature at which a substance changing states from a solid to a liquid

Question 56

what is the boiling point

Answer 56

the temperature at which a liquid turns to a gas

Question 57

does most substance get denser when they change state from a liquid to a solid

Answer 57

yes

Question 58

why is water less dense as a solid

Answer 58

because of the way the particles arrange themselves