AS Chemistry - Compounds, formulae and equations

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Define oxidation number
A measure of the number of electrons an atom uses to bond to atoms of a different element
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What are positively charged ions called?
Cations
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What are negatively charged ions called?
Anions
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Define Valency
A measure of the number of electrons an atom or group of atoms uses in bonding with another species.
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What is the formula of the ion Ammonium?
NH4 +
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What is the formula of the ion Nitrate (V)?
NO3-
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What is the formula of the ion Sulfate (VI)?
SO4 2-
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What is the formula of the ion Phosphate (V)?
PO4 3-
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What is the formula of the ion Hydroxide?
OH-
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What is the formula of the ion Carbonate?
CO3 2-
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What is the formula of the ion Hydrogen sulfate?
HSO4 -
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What is the formula of the ion Hydrogen carbonate?
HCO3 -
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In terms of solubility rules, Compounds of sodium and potassium and ammonium are..?
Soluble
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In terms of solubility rules, salts are...?
Soluble
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In terms of solubility rules, bases are...?
Insoluble
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Card 2

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What are positively charged ions called?

Back

Cations

Card 3

Front

What are negatively charged ions called?

Back

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Card 4

Front

Define Valency

Back

Preview of the front of card 4

Card 5

Front

What is the formula of the ion Ammonium?

Back

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