Atoms And Reaction

Question 1

Ideal gas equation

Answer 1

pV=nRT

Question 2

What is formed in a neutralisation reaction

Answer 2

A salt and water

Question 3

Metal + Acid products

Answer 3

Metal salt + hydrogen

Question 4

Metal oxide + Acid products

Answer 4

Salt + water

Question 5

Metal carbonate + Acid products

Answer 5

Metal salt + Carbon dioxide + Water

Question 6

Oxygen oxidation number

Answer 6

-2

Question 7

Oxygen in peroxide’s oxidation number

Answer 7

-1

Question 8

Hydrogen oxidation number

Answer 8

+1

Question 9

Hydrogen oxidation in metal hydrides

Answer 9

-1

Question 10

Oxidation number rules

Answer 10

All uncombined elements have oxidation number 0
For monoatomic ion its same as charge
Molecular ions, sum of oxidation numbers is same as charge
Neutral compounds have 0

Question 11

Orbital

Answer 11

A region within an atom that can hold up to 2 electrons with opposite spin

Question 12

Spin pairing

Answer 12

Idea that two electrons spin in opposite direction if in the same orbital

Question 13

Principle quantum number

Answer 13

The number given to the shell energy level

Question 14

S sub shell max electrons

Answer 14

2

Question 15

P max electron

Answer 15

6

Question 16

D max electrons

Answer 16

10

Question 17

F max electrons

Answer 17

14

Question 18

S orbital shape

Answer 18

Spherical

Question 19

P orbital shape

Answer 19

Dumbbell

Question 20

Mass spectra: Relative atomic mass

Answer 20

Multiply each relative isotopic mass by its relative isotopic abundance and add up results
Divide by sum of isotopic abundance’s

Question 21

Ar from isotopic Abundance

Answer 21

Multiply each relative isotopic mass by its % relative isotopic abundance and add up the results
Divide by 100

Question 22

Empirical formula

Answer 22

The smallest whole hunger ratios of atoms of each element in a compound

Question 23

Molecular formula

Answer 23

Gives the actual number of atoms of each type of element in a molecule

Question 24

Nitrate ion

Answer 24

NO3-

Question 25

Carbonate ion

Answer 25

CO3 2-

Question 26

Sulfate ion

Answer 26

SO4 2-

Question 27

Ammonium ion

Answer 27

NH4 +

Question 28

Zinc ion

Answer 28

Zn2+

Question 29

Silver ion

Answer 29

Ag+

Question 30

First ionisation energy

Answer 30

Energy needed to remove 1 mole of electrons from 1 mole of gaseous atoms

Question 31

Gas volume at RTP

Answer 31

24dm^3mol^-1

Question 32

RTP

Answer 32

298 K

101.3kPa

Question 33

Percentage yield

Answer 33

(Actual yield/theoretical)x100

Question 34

Atom economy

Answer 34

(Molecular mass of Desired product/ sum of molecular masses of all products)x100