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Flashcards in CHE Final Exam Deck (66)
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1

Alpha and beta particles

Positively and negatively charged particles, respectively

2

Gamma rays

Neutral charge, high-energy radiation

3

Nuclear theory

Supported by Rutherford's experiment:

nucleus = most of atom's mass w/protons & neutrons

empty space = most of atom's space w/electrons

4

Polyatomic molecules in nature

P4
S4
Se4
O3

5

Noble metals

Ag, Pt, Au

6

Transition metals with predictable charge (3)

Ag (1B = 1+)
Zn (2B = 2+)
Cd (2B = 2+)

7

1 prefix (HC)

meth-

8

2 prefix (HC)

eth-

9

3 prefix (HC)

prop-

10

4 prefix (HC)

but-

11

HC suffixes (single, double, & triple bonds)

-ane, -ene, -yne

12

Alkanes

Hydrocarbons with only single bonds (-anes)

13

Percent yield

% yield = ( actual / theoretical ) * 100%

*NOT PERCENT ERROR!

14

Dilution formula

M1V1 = M2V2

M = molarity, V = volume (liters)

15

Dissociation

Ions of a salt separate when dissolved

16

Ionization

Process of ion formation in solution

(acids, bases)

17

Arrhenius acids & bases

Acids produce H+ (H3O+) in water

Bases produce OH- in water

18

Brønsted acids & bases

Acid = proton donor

Base = proton acceptor

19

Monoprotic, diprotic, and tripotic acids

Each unit of acid yields one, two, and H+ ion(s) respectively

20

Neutralization reaction result

salt + water + heat

21

Gas-evolving reactions & compounds (4)

Acid + salt --> salt + gas + water

Sulfides

Bicarbonates

Bisulfites

Ammonium

22

Oxidation half-reaction

Shows loss of electrons (OIL)

23

Reduction half-reaction

Shows the gain of electrons (RIG)

24

Oxidizing agents

Are reduced (RIG)

25

Reduction agents

Are oxidized (OIL)

26

Disproportionation reaction

Same element is simultaneously oxidized & reduced

27

Modified dilution equation

MacidVacid(# of H+) = MbaseVbase(# of OH-)

28

Pressure unit conversion

760 mmHg = 760 torr = 1 atm = 101,325 Pa

29

Molar mass of gas formula

M = dRT/P

molar mass = (density) * R * (Kelvin) / (atm)

 

 

D = PM/RT
= pressure * molar mass / R * temp

30

Average KE

Constant tempterature: gases have same average KE