general chem knowledge

Question 1

gram formula is

Answer 1

the mass of one mole

Question 2

soluble

Answer 2

the ability to dissolve in the solvent

Question 3

insoluble

Answer 3

the inability to dissolve in the solvent

Question 4

solute

Answer 4

the chemical that dissolves in the solvent

Question 5

solvent

Answer 5

the chemical that dissolves the solute

Question 6

solution

Answer 6

the mixture formed when a solute dissolves

Question 7

solubility

Answer 7

a measure of how well as solute will dissolve in a particular solvent

Question 8

saturated

Answer 8

a solution into which as much solute as possible has been dissolved

Question 9

test for carbon dioxide

Answer 9

can turn lime water cloudy

Question 10

test for hydrogen

Answer 10

making a lit splint pop

Question 11

test for oxygen

Answer 11

relights a glowing splint

Question 12

group 7 are

Answer 12

haolgens

Question 13

group one are

Answer 13

alkali metals

Question 14

group 8/0

Answer 14

nobel gases

Question 15

charge +1
found in the nucleus
mass of 1

Answer 15

proton

Question 16

charge -1
found in the outer shell
unneligible mass

Answer 16

electron

Question 17

charge 0
found in the nucleus
mass of 1

Answer 17

neutron

Question 18

a positive charge on an ion

Answer 18

loss of an electron

Question 19

a negative charge on an ion

Answer 19

gained an electron

Question 20

isotopes

Answer 20

have the same atomic number but different mass numbers

Question 21

why is the relative atomic mass rarely a whole number

Answer 21

it is the average mass of all the isotopes of an element

Question 22

what is a spectrometer

Answer 22

identifies the different isotopes and their % abundance in a sample of an element

Question 23

the minimum energy required for a reaction is called

Answer 23

activation energy

Question 24

components required for a reaction to occur

Answer 24

sufficient energy and correct orientation

Question 25

all reactions are..................at the start

Answer 25

quickest

Question 26

double the concentration means

Answer 26

double the product

Question 27

ammonium test

Answer 27

turns damp red litmus paper or damp universal indicator paper blue.