(Chap 1) Properties of Matter

Question 1

it is defined as the study of
matter and the changes it undergoes

Answer 1

chemistry

Question 2

Everything in the universe has a _____________
connection.

Answer 2

“chemical”

Question 3

types of pure substance

Answer 3

element and compound

Question 4

two types of matter

Answer 4

pure substance
mixture

Question 5

has constant chemical composition and distinct
properties

Answer 5

pure substance

Question 6

Fundamental substance; cannot be separated into simpler substances by chemical methods

Answer 6

element

Question 7

substance composed of two
more elements in fixed
proportions; separable into
simpler substances only by
chemical methods

Answer 7

compound

Question 8

example of element in pure substance

Answer 8

sodium (Na)
chlorine (Cl2)

Question 9

example of compound in pure substance

Answer 9

sodium chloride (NaCl)

Question 10

consists of two or more pure substances that retain their identities

Answer 10

mixture

Question 11

two types of mixture

Answer 11

heterogenous and homogenous

Question 12

mixture not uniform in composition and properties

Answer 12

heterogenous

Question 13

example of mixture

Answer 13

milk
halo-halo

Question 14

mixture having uniform composition and properties throughout

Answer 14

homogenous

Question 15

also called solutions

Answer 15

homogenous

Question 16

example of homogenous

Answer 16

salt solution

Question 17

Separation of components from a liquid mixture by using selective boiling and condensation

Answer 17

distillation

Question 18

Separates mixtures based on differences in solubility

Answer 18

crystallization

Question 19

the particles are held together strongly

Answer 19

solid

Question 20

it has a fixed shape and a fixed volume

Answer 20

solid

Question 21

the particles are separated by spaces that are large enough to allow the particles to slide past each other

Answer 21

liquid

Question 22

it has no fixed shape

Answer 22

liquid

Question 23

Liquid particles are held close
together, therefore, a liquid has a
____________

Answer 23

fixed volume

Question 24

the particles are separated by much larger spaces

Answer 24

gas

Question 25

it is mostly empty space

Answer 25

gas

Question 26

what phase occur during gas to solid?

Answer 26

deposition

Question 27

what phase occur during solid to gas?

Answer 27

sublimation

Question 28

what phase occur during solid to liquid?

Answer 28

melting

Question 29

what phase occur during liquid to solid?

Answer 29

freezing

Question 30

what phase occur during liquid to gas?

Answer 30

vaporization

Question 31

what phase occur during gas to liquid?

Answer 31

condensation

Question 32

what are the chemical properties

Answer 32

Tendency to undergo chemical changes The identity of the substance changes

Question 33

give atleast 3 chemical reactions that happens in our daily life

Answer 33

combustion digestion photosynthesis