Atoms And Reaction Flashcards Preview

Chemistry > Atoms And Reaction > Flashcards

Flashcards in Atoms And Reaction Deck (35):
1

Ideal gas equation

pV=nRT

2

What is formed in a neutralisation reaction

A salt and water

3

Metal + Acid products

Metal salt + hydrogen

4

Metal oxide + Acid products

Salt + water

5

Metal carbonate + Acid products

Metal salt + Carbon dioxide + Water

6

Oxidation number

Tells how many electrons an atom has donated or accepted to form an ion or to form a compound

7

Oxygen oxidation number

-2

8

Oxygen in peroxide’s oxidation number

-1

9

Hydrogen oxidation number

+1

10

Hydrogen oxidation in metal hydrides

-1

11

Oxidation number rules

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

12

Orbital

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

13

Spin pairing

Idea that two electrons spin in opposite direction

14

Principle quantum number

The number given to the shell energy level

15

S sub shell max electrons

2

16

P max electron

6

17

D max electrons

10

18

F max electrons

14

19

S orbital shape

Spherical

20

P orbital shape

Dumbbell

21

Mass spectra: Relative atomic mass

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

22

Ar from isotopic Abundance

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

23

Empirical formula

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

24

Molecular formula

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

25

Nitrate ion

NO3-

26

Carbonate ion

CO3 2-

27

Sulfate ion

SO4 2-

28

Ammonium ion

NH4 +

29

Zinc ion

Zn2+

30

Silver ion

Ag+

31

First ionisation energy

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

32

Gas volume at RTP

24dm^3mol^-1

33

RTP

298 K
101.3kPa

34

Atom economy

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

34

Percentage yield

(Actual yield/theoretical)x100