3rd Nine Weeks Test Review

How many significant figures does the following number have?
0.00345

• 6
• 5
• 3
• Ambiguous: 3,4,5, or 6

How many significant figures?

7945

• 1

• 2

• 3

• 4

How many significant figures?

0.150

• 1

• 2

• 3

• 4

How many significant figures?

76400.0

• 3

• 4

• 5

• 6

The correct name for CaBr₂ is

• calcium dibromide

• calcium (II) bromide

• calcium bromide

• carbon bromide

The correct name for P₂O₅ is

• potassium oxide

• dipotassium pentoxide

• diphosphorus pentoxide

• phosphorus oxide

The name of the compound Mg₃(PO₄)₂ is

• magnesium phosphate

• magnesium phosphite

• trimagnesium diphosphate

• magnesium (III) phosphate

What is the proper prefix for an element that occurs four times in a compound?

• Tetra-

• Quadra-

• Penta-

• Forti-

What is the correct name for MgCl2?

• Magnesium (II) chloride

• Magnesium chloride

• Magnesium chloride (II)

• Magnesium chlorite

What is the correct name for Fe(OH)3?

• (III) iron hydroxide

• Iron hydroxide (III)

• Iron (III) hydroxate

• Iron (III) hydroxide