Naming Compounds and Finding Formulas

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What is Rule 1 of naming compounds? Give an example.
When two different elements combine the compound's name is 'something -IDE'. (e.g, if sodium and chlorine combine = sodium chloride. Magnesium and oxygen = magnesium oxide).
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What is Rule 2 of naming compounds? Give an example.
When three or more different elements combine and one of them is oxygen, the compound's name is often 'something -ATE'. E.g, copper, sulfur and oxygen = copper sulfate. Sodium, nitrogen and oxygen = sodium nitrate)
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How can you work out the formula you get when things react?
Look at what ions they form.
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What do the charges of the ions in a compound have to do?
Balance.
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Give an example of work outing the formula by looking at the charges. (1)
You need 1 hydroxide ion (OH-) to balance the charge of 1 sodium ion (Na+), so the formula for sodium hydroxide would be NaOH.
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Give an example of work outing the formula by looking at the charges. (2)
You need 2 chloride ions (Cl-) to balance the charge of 1 magnesium ion (Mg2+), so the formula for magnesium chloride would be MgCl2.
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Give an example of work outing the formula by looking at the charges. (3)
You need 1 oxide ion (O2-) to balance the charge of 1 calcium ion (Ca2+), so the formula for calcium oxide would be CaO.
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Card 2

Front

What is Rule 2 of naming compounds? Give an example.

Back

When three or more different elements combine and one of them is oxygen, the compound's name is often 'something -ATE'. E.g, copper, sulfur and oxygen = copper sulfate. Sodium, nitrogen and oxygen = sodium nitrate)

Card 3

Front

How can you work out the formula you get when things react?

Back

Preview of the front of card 3

Card 4

Front

What do the charges of the ions in a compound have to do?

Back

Preview of the front of card 4

Card 5

Front

Give an example of work outing the formula by looking at the charges. (1)

Back

Preview of the front of card 5
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