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NS > Chemistry > Flashcards

Chemistry Flashcards

1
Q

what is covalent bonding

A

sharing of electrons (non-metals bonding with other non-metals)

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2
Q

what is an element

A

pure substances made of only one type of atom.

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3
Q

how to determine atomic mass

A

atomic number (z) + neutrons

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4
Q

determine neutrons?

A

atomic mass (A) - atomic number (z)

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5
Q

group names on periodic table

A 
group 1 = alkali metals 
group 2 = alkali earth metals
between group 2&3 = transition metals
group 17 = halogens
group 18 = noble gases
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6
Q

properties of metals

A 
Conduct heat 
Conduct electricity
Malleable 
Ductile 
Most metals react with acid
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7
Q

properties of non-metals

A 
Do not conduct heat 
Do not conduct electricity
Dull
Brittle
Not ductile
Do not react with acid
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8
Q

Polyatomic ions:

A

Ammonium ion: NH4+

Hydroxide: OH-
Nitrate: NO3-
Nitrite: NO2-

Sulphate: SO42-
Sulphite: SO32-
Carbonate: CO32-

Phosphate: PO43-

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9
Q

Write chemical formulae for the following:

ammonium nitrate:

A

ammonium nitrate: NH4NO3

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10
Q

chemical formulae for:

copper sulphate:

A

copper sulphate: CuS

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11
Q

chemical formulae for:

ammonium oxide:

A

ammonium oxide: (NH4)2O

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12
Q

chemical formulae for:

magnesium hydroxide:

A

magnesium hydroxide: Mg(OH)2

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13
Q

chemical formulae for:

potassium hydroxide:

A

potassium hydroxide: KOH

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14
Q

chemical formulae for:

lithium carbonate:

A

lithium carbonate: LiCO3

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15
Q

chemical formulae for:

sodium phosphate:

A

sodium phosphate: NaPO4

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16
Q

chemical formulae for:

aluminium sulphite:

A

aluminium sulphite: Al(SO3)3

17
Q

chemical formulae for:

Nickel(III) nitrite:

A

Nickel(III) nitrite: Ni(NO2)3

18
Q

chemical equation ?

(a) Fe+ Cl2 −−→ FeCl3

A

(a) 2 Fe+3 Cl2 −−→ 2 FeCl3

19
Q

chemical equation?

(d) C4H6O3 + H2O −−→ C2H4O2

A

(d) 1 C4H6O3 +1 H2O −−→ 2 C2H4O2

20
Q

Polyatomic ions:

A

Ammonium ion: NH4+

Hydroxide: OH-
Nitrate: NO3-
Nitrite: NO2-

Sulphate: SO42-
Sulphite: SO32-
Carbonate: CO32-

Phosphate: PO43-

21
Q

Write chemical formulae for ammonium nitrate:

A

(NH4) + (NO3) = (NH4) (NO3)

22
Q

examples of diatomic molecules

hint, “Have No Fear Of Ice Cold Beer”

A

Hydrogen, Nitrogen, Flourine, Oxygen, Iodine, Chlorine, and Bromine.

23
Q

what is Ionic bonding

A

the transfer of electrons occuring (metal bonds with a non-metal)

24
Q

examples of ionic bonding

A

NaCl - Sodium Chloride
KF - Potassium Fluoride
MgO - Magnesium Oxide

25
Q

what is a compound?

A

two or more elements that have chemically bonded

NS (4 decks)

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