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Elements and Compounds

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Nelle Bednar

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Cards in this guide (17)
The formula for the compound formed between potassium and the chlorate ion is

kclo3

The formula for ammonium sulfate is

Ammonium sulfate is (NH4)2SO4

Active elements that never exist alone in nature are known as

chemically reactive

The charges in a compound should always add to

The charges in a compound should always add to zero.

Aluminum will combine with the sulfite ion to form

Al2(SO3)3

The subscript of ammonium in a compound formed between ammonium and phosphate ion is

3

Choose the correct formula for aluminum chloride

The chemical formula for aluminum chloride is ALCL3. The number 3 is written below the line as a subscript.

The subscript of potassium in a compound formed between potassium and sulfur is

2

Predict the most likely products formed from the reaction between calcium carbonate and sodium metal

Na2CO3 + Ca

Predict and choose the most correct products formed from the reaction between iron III oxide and potassium metal

3k20+2fe

Choose the correct formula for a compound between ammonium and chromate ions

(NH4)2CrO4

The white powder used to line baseball football and soccer fields is a product of the reaction between calcium oxide and water What is the formula of this familiar powder

Ca(OH)2

What is the expected product of the reaction between KOH plus NI is

There will be no reaction.

Choose the most likely products from the reaction of Al2s3 plus Ba

3BaS + 2Al is most likely the product.

In a reaction between ammonium nitrate and aluminum chloride the newly formed aluminum compound will be

Al(NO3)3 . . . . .A+

Using the periodic chart indicate the most common charge of magnesium

1

What solution will correctly complete and balance this equation NiCl2 plus 2Na

2NaCl + Ni

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