Formulas & equations

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Last updated 2:33 PM on 9/14/26
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15 Terms

1
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What is an ion?

  • Charged atom or group of covalently bonded atoms where the number of electrons is different to the number of protons


2
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What are atoms of more than one element bonded together known as?

Polyatomic ions e.g OH-

3
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What is the formula of ammonium?

NH4+

4
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What is the formula for silver?

Ag 1+

5
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What is the formula for zinc?

Zn 2+

6
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What is the formula for hydroxide?

OH-

7
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What is the formula for nitrate?

NO3-

8
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What is the formula for nitrite?

No2-

9
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What is the formula for hydrogen carbonate?

HCo3-

10
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What is the formula for manganate (VIII)

MnO4-

11
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What is the formula for carbonate?

CO3²-

12
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What is the formula for phosphate?

PO4³-

13
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What is the formula for sulphate?

SO4²-

14
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What is the formula for sulphite?

SO3²-

15
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What is the formula for dichromate (VI)?

Cr2O7²-