Vocab Terms

Front 1

homogeneous

Back 1

all mixed together equally, all in one phase

Front 2

Heterogeneous

Back 2

orange juice with pulp, liquid + solid

Front 3

Density=

Back 3

mass/volume

Front 4

Celsius to Fahrenheit

Back 4

F = (9/5)C + 32

Front 5

precision

Back 5

how close measurements in a series are to eachother

Front 6

accuracy

Back 6

how close a measurement is to the actual value

Front 7

kinetic energy

Back 7

energy due to motion

Front 8

potential energy

Back 8

energy due to position

Front 9

K to C

Back 9

C = K - 273.15

Front 10

Law of Conservation of Mass

Back 10

Mass is conserved in chemical reactions

Front 11

Law of Constant Composition

Back 11

compounds compositions are the same ANYTIME, ANYWHERE

Front 12

Law of Multiple Proportions

Back 12

Elements combine in specific rations every time

Front 13

1 mole (mol)

Back 13

6.022 x 1023

Front 14

molar mass

Back 14

the mass in grams of one mol of substance

Front 15

mass % =

Back 15

mass of atoms of element/mass of all atoms x 100

Front 16

find empiricle formula of compound with C=44.77% H=7.52% and O=47.71%

Back 16

C5H10O4

Front 17

s

Back 17

solid

Front 18

l

Back 18

liquid

Front 19

g

Back 19

gas

Front 20

aq

Back 20

aqueous

Front 21

limiting reactant

Back 21

reactant that runs out first and determines final amount

Front 22

theoretical yield

Back 22

max. possible yield of products, predicted by the balanced equation and reactant quantities

Front 23

Theoretical yield of ammonia in the reaction of 25.0 g N2 and 6.00 g H2?

Back 23

Theoretical Yield = 30.4 g NH3

Front 24

Percent yield =

Back 24

actual yield/theoretical yield

Front 25

41.5 g bromobenzene from 25.2 g benzene and excess bromine, percent yield?

Back 25

81.90%

Front 26

base

Back 26

yield OH- in water

Front 27

Isotope

Back 27

atoms with same number of protons, but different numbers of NEUTRONS

Front 28

Empirical Formula

Back 28

Shows the simplest integer ratio of atoms of each element in a compound

Front 29

Molecular Formula

Back 29

Shows the number of Atoms of ach element in a molecule

Front 30

Structural Formula

Back 30

Shows the connectivity of the atoms in a molecule

Front 31

Formulas of hydrogen peroxide

Back 31

Empirical Formula: HO Molecular Formula H2O2

Front 32

Acid

Back 32

Yield H+ ions in water

Front 33

Binary Aqueous Acids

Back 33

acid = 2 elements (aq) = in water

Front 34

Hydrocarbons

Back 34

contain only carbon and hydrogen

Front 35

Alkanes

Back 35

hydrocarbons with only single bonds

Front 36

Compound

Back 36

matter composed of two or more different elements chemically bonded together

Front 37

mixture

Back 37

two or more substances that are physically intermingled

Front 38

What mass of iron(III) oxide will be produced if 12.3 g of iron react with an excess of oxygen according to the reaction, 4F(s) + 3O2(g) --> 2Fe2O3(s)

Back 38

a) 4.4 g b) 8.8 g c) 16.7g d) 17.6 g e) 35.2 g

Front 39

isomers

Back 39

compounds with the same molecular formula, but with different properties (shape, etc.)

Front 40

titrant

Back 40

a solution of accurately known concentration

Front 41

analyte

Back 41

a solution of unknown concentration

Front 42

equivalence point

Back 42

exact titrant volume required to completely react with the analyte

Front 43

end point

Back 43

the titrat volume slightly in excess of that required to completely react with the analyte

Front 44

metal activity series

Back 44

Li, K, Ba, Ca, Na, Mg, Al, Mn, Zn, Cr, Fe, Cd, Co, Ni, Sn, Pb

Front 45

reversible reaction

Back 45

reaction that proceeds simultaneously in both directions

Front 46

equilibrium

Back 46

the forward reaction and the reverse reaction proceed at equal rates

Front 47

combustion reactions

Back 47

2C4H10 + 13O2 ----> 8CO2 + 10H2O