Things You Need To Know For Chemistry

Question 1

what is the relative mass of a proton

Answer 1

1

Question 2

what is the relative charge of a proton

Answer 2

+1

Question 3

where is the proton located

Answer 3

in the nucleus

Question 4

what is the relative mass of a neutron

Answer 4

1

Question 5

what is the relative charge of a nuetron

Answer 5

0

Question 6

where is the nuetron located

Answer 6

in the nucleus

Question 7

what is the relative mass of an electron

Answer 7

1/1838

Question 8

what is the relative charge of an electron

Answer 8

-1

Question 9

where is the electron located

Answer 9

shells

Question 10

define the word isotope

Answer 10

they are atoms with the same number of protons but different amount of nuetrons

Question 11

how do you work out relative atomic mass

Answer 11

RAM = (abundance/100 X Isotope) + (abundance/100 X Isotope)

Question 12

what is the definition of empirical formula

Answer 12

simplest whole number ratio of atom

Question 13

describe the arrangement of a solid in a microscopic state

Answer 13

Grid like arrangement, vibrating not moving, strong force of attraction

Question 14

describe the arrangement of a solid at a macroscopic state

Answer 14

fixer shape and fixed volume

Question 15

describe the arrangement of a liquid at a microscopic state

Answer 15

random arrangement, vibrating and moving, quite strong force of of attraction

Question 16

describe the arrangement of a liquid at a macroscopic state

Answer 16

variable shape and fixed volume

Question 17

describe the arrangement of a gas at a microscopic state

Answer 17

random arrangement, particles far apart, vibrating, moving very fast, weak force of attraction

Question 18

describe the arrangement of a gas at a macroscopic state

Answer 18

variable shape and variable volume

Question 19

Solid to liquid =

Answer 19

melting

Question 20

Liquid to Solid =

Answer 20

freezing

Question 21

Liquid to gas =

Answer 21

boiling

Question 22

gas to liquid =

Answer 22

condensing

Question 23

Solid to gas

Answer 23

subliming

Question 24

gas to Solid =

Answer 24

depositing

Question 25

when does evaporation happen

Answer 25

happens at the temperature lower than the boiling point

Question 26

define diffusion

Answer 26

the tendency of particles to spread out

Question 27

define Brownian motion

Answer 27

random path of a diffusing particle

Question 28

what is a molecule made Up of

Answer 28

a small group of atoms bonded together

Question 29

what makes an ion

Answer 29

charged atoms or molecules

Question 30

what makes an atom

Answer 30

No charge

Question 31

what makes an element

Answer 31

a substance with only one type of atom

Question 32

what makes a compound

Answer 32

a substance with more than one type of atom chemically bonded together

Question 33

what are the properties of a metal

Answer 33

shiny, conductors of electricity, conducts heat, malleable

Question 34

what are the properties of a non-metal

Answer 34

dull, insulates electricity, insulators to heat, Brittle

Question 35

do metals lose or gain electrons

Answer 35

lose elections when they react

Question 36

do non-metals lose or gain electrons

Answer 36

gain electrons when they react