Chap 3 - stichometry, formulae Flashcards

1
Q

naming compounds: metal, non-metal - rules

A

-metal first
non-metal has “ide” at end
eg. magnesium chloride

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2
Q

naming compounds: non-metal, non-metal - rules

A

-hydrogen first
-non-metal with lower group goes first
-non-metal with lower down goes first
eg, hydrogen chloride, nitrogen dioxide, sulfur oxide

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3
Q

silver ion

A

Ag +

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4
Q

ammonium ion

A

NH4 +

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5
Q

hydroxide ion

A

OH -

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6
Q

nitrate ion

A

NO3 -

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7
Q

sulfate

A

SO4 2-

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8
Q

cabonate

A

CO3 2-

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9
Q

define molecular formula

A

number of each type of atoms present (chemical formula)

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10
Q

define empirical formula

A

simplest whole number ratio of atoms present

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11
Q

what does -> mean

A

to make

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12
Q

what are the things before the arrow called

A

reactants

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13
Q

what are the things after the arrow called

A

products

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14
Q

what are the arrows above

A

conditions

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14
Q

what must you do when balancing equations

A

make use the number of atoms are equal in both sides

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14
Q

what is the standard measurement of atoms

A

carbon 12

15
Q

why is carbon 12 the standard

A

its the most abundant element

16
Q

define relative atomic mass

A

the average mass of isotopes of an element compared to 1/12 of the mass of an atom of carbon 12

17
Q

define atomic mass

A

proton + neutron

18
Q

define atomic number

A

proton

19
Q

how do you get the average atomic mass of an element

A

(mass number of isotope x % of type of isotope) + (….) / 100

20
Q

define relative molecular mass

A

sum of relative atomic masses in molecular formula

21
Q

define relative formula mass

A

sum of relative atomic mass in empirical formula