Summer ALEKS

Question 1

1 mL =

Answer 1

1 cm^3

Question 2

1 m^3 =

Answer 2

1000 L

Question 3

What are metals in their standard state?

Answer 3

Solids

except for mercury

Question 4

Which nonmetals are NOT simple solids?

Answer 4

Noble gases

7 diatomic nonmetals

Phosphorus

Sulfur

Question 5

What state are most diatomic nonmetals in?

Answer 5

Mostly gases

Question 6

Which two diatomic nonmetals are NOT gases?

Answer 6

Iodine = solid

Bromine = liquid

Question 7

What is special about the diatomic molecules when they are in their standard states?

Answer 7

They have 2s after them

Hence, the name diatomic

Question 8

What are metalloids at room temperature?

Answer 8

solids

Question 9

7 diatomic molecules

Answer 9

Have No Fear Of Ice Cold Beer

H: Hydroden
N: Nitrogen
F: Fluorine
O: Oxygen
I: Iodine
C: Chlorine
B: Bromine

Question 10

How do you write formulas?

Answer 10

Order formula from left to right on the periodic table. A element that is more to the left should be placed in front of an element more to the right

When 2 elements are in the same row, list the LOWER element first

Question 11

Formula writing and hydrogen

Answer 11

Hydrogen goes AFTER all elements

Except: with group 6A or 7A elements. Then, hydrogen goes first

Question 12

Types of Bonds:

metal - nonmetal

Answer 12

Ionic

*even if lots of other elements, a metal and nonmetal are ionic

Question 13

Types of Bonds:

nonmetal - nonmetal

Answer 13

Molecular

Question 14

Electron symbol

Answer 14

e-

Question 15

Proton symbol

Answer 15

p+

Question 16

Neutron symbol

Answer 16

n

Question 17

How much do neutrons and protons weigh?

Answer 17

1.0 amu

Question 18

How much do electrons weigh?

Answer 18

.0005 amu

Question 19

Which electrons do you subtract from when determining valence electrons?

Answer 19

Only electrons from valence shell

Question 20

What does period tell you?

Answer 20

The number of shells

Question 21

Formula for converting between celcius and kelvin

Answer 21

Ce. = kelv. - 273.15

Question 22

Oxoanion

Answer 22

polyatomic anion made from a central atom chemically bonded to one or more atoms of oxygen

Question 23

How do you name most common oxoanions?

Answer 23

Replace all but the first syllable of the central atom’s name with -ate

MEMORIZE THE OXOANION NAMING CHART

Question 24

(m/cm)^3 =

Answer 24

m^3 / cm^3

Question 25

Covalent bonds

Answer 25

Form between two non-metals Also molecular

Question 26

Binary compound

Answer 26

only contains 2 elements

Question 27

Naming binary covalent compound rules

Answer 27

1) if prefix ends with an "-o" or "-a" and is being added to an element that starts with an "o", drop the prefix ending 2) if the first element only contains 1 atom, do NOT use a prefix

Question 28

Identifying organic compounds

Answer 28

1) always contain carbon | 2) always molecular

Question 29

Hydrocarbon

Answer 29

simplest organic compound made ONLY of carbon and hydrogen

Question 30

Can measurements always be multiplied or divided regardless of units?

Answer 30

Yes

Question 31

C2H3O2-

Answer 31

acetate

Question 32

% w/w

Answer 32

mass percent

Question 33

Mass percent of a component is...

Answer 33

the percentage of the TOTAL mass solution, which consists of the mass of that component

Question 34

How many sig figs in .001?

Answer 34

1

Question 35

How many sig figs in .010?

Answer 35

2

Question 36

Concentration =

Answer 36

m / v

Question 37

What is concentration measured in?

Answer 37

M

Question 38

Intermediates

Answer 38

compounds produced in one step of a reaction and consumed later intermediates can NOT appear in net equation

Question 39

Molar mass is measured in?

Answer 39

g

Question 40

What is the units of avogadro's number?

Answer 40

It is unitless! It can be a count of anything

Question 41

Which transition metals do not need to be written with roman numerals after them?

Answer 41

Aluminum Zinc Silver

Question 42

mM =

Answer 42

mmol / L