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Chem 150 > Summer ALEKS > Flashcards

Summer ALEKS Flashcards

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1
Q

1 mL =

A

1 cm^3

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2
Q

1 m^3 =

A

1000 L

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3
Q

What are metals in their standard state?

A

Solids

except for mercury

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4
Q

Which nonmetals are NOT simple solids?

A

Noble gases

7 diatomic nonmetals

Phosphorus

Sulfur

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5
Q

What state are most diatomic nonmetals in?

A

Mostly gases

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6
Q

Which two diatomic nonmetals are NOT gases?

A

Iodine = solid

Bromine = liquid

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7
Q

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

A

They have 2s after them

Hence, the name diatomic

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8
Q

What are metalloids at room temperature?

A

solids

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9
Q

7 diatomic molecules

A

Have No Fear Of Ice Cold Beer

H: Hydroden
N: Nitrogen
F: Fluorine
O: Oxygen
I: Iodine
C: Chlorine
B: Bromine
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10
Q

How do you write formulas?

A

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

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11
Q

Formula writing and hydrogen

A

Hydrogen goes AFTER all elements

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

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12
Q

Types of Bonds:

metal - nonmetal

A

Ionic

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

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13
Q

Types of Bonds:

nonmetal - nonmetal

A

Molecular

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14
Q

Electron symbol

A

e-

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15
Q

Proton symbol

A

p+

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16
Q

Neutron symbol

A

n

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17
Q

How much do neutrons and protons weigh?

A

1.0 amu

18
Q

How much do electrons weigh?

A

.0005 amu

19
Q

Which electrons do you subtract from when determining valence electrons?

A

Only electrons from valence shell

20
Q

What does period tell you?

A

The number of shells

21
Q

Formula for converting between celcius and kelvin

A

Ce. = kelv. - 273.15

22
Q

Oxoanion

A

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

23
Q

How do you name most common oxoanions?

A

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

MEMORIZE THE OXOANION NAMING CHART

24
Q

(m/cm)^3 =

A

m^3 / cm^3

25
Q

Covalent bonds

A

Form between two non-metals

Also molecular

26
Q

Binary compound

A

only contains 2 elements

27
Q

Naming binary covalent compound rules

A

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

28
Q

Identifying organic compounds

A

1) always contain carbon

2) always molecular

29
Q

Hydrocarbon

A

simplest organic compound

made ONLY of carbon and hydrogen

30
Q

Can measurements always be multiplied or divided regardless of units?

A

Yes

31
Q

C2H3O2-

A

acetate

32
Q

% w/w

A

mass percent

33
Q

Mass percent of a component is…

A

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

34
Q

How many sig figs in .001?

A

1

35
Q

How many sig figs in .010?

A

2

36
Q

Concentration =

A

m / v

37
Q

What is concentration measured in?

A

M

38
Q

Intermediates

A

compounds produced in one step of a reaction and consumed later

intermediates can NOT appear in net equation

39
Q

Molar mass is measured in?

A

g

40
Q

What is the units of avogadro’s number?

A

It is unitless!

It can be a count of anything

41
Q

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

A

Aluminum

Zinc

Silver

42
Q

mM =

A

mmol / L

Chem 150 (10 decks)

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