Polyatomic Ion and hydrates

POYATOMICSAND

HYDRATES

POLYATOMIC

IONS

Group of atoms 2 or more with either

a positive charge or negative

Multiple Choice

A negatively charged ion is

• a cation.

• an anion.

• in a good mood.

• is an optimist.

Multiple Choice

A positively charged ion is

• a cation.

• an anion.

• in a good mood.

• is an optimist.

Multiple Choice

The polyatomic Ammonium (NH₄) it has a negative or positive charge

• Negative Change

• Positive Charge

Multiple Choice

Are the polyatomic ions on your list mostly negative or positive?

• Negative

• Postivtive

Multiple Choice

PO₄^3-

• phosphate

• phosphorus oxide

Multiple Choice

CN^-

• cyanide

• carbon nitride

If the formula has

more that 3 or
more CAPATIOL
LETTER and/or
Parenthesis

HOWCANWE
TELLIFIT'S
POLYATOMIC

LOOKATTHE
LOCATIONON

THEPOLYATOMIC

IONINTHE
FORMULA

LOOKING AT THE CHART

BELOW

Multiple Choice

The polyatomic ions that are negatively charge are locate at the _______of the compound.

• Beginning of the compound

• End of the compound

Multiple Choice

The polyatomic ions that are positively charge are locate at the _______of the compound.

• Beginning of the compound

• End of the compound

Multiple Choice

Which of the following is nitrate?

• NO^-

• NO₂^-

• NO₃^-

• NO₄^-

Multiple Choice

Which of the following is chromate?

• CrO₄^2-

• CrO₃^2-

• CrO₂^2-

• CrO^2-

Multiple Choice

What is the charge on the hydroxide ion?

• 1

• -1

• 2

• -2

Multiple Choice

OH^-

• hydronium

• hydroxide

Multiple Choice

NH₄⁺

• nitrogen hydride

• ammonium

PARENTHESESAND
POLYATOMICIONS

Polyatomic ions are in parentheses there is

more than on copy of that polyatomic

The subscript afterthe parentheses

indicates how many copy of that polyatomic

ion are present in compound

Multiple Choice

When writing the chemical formula of a compound that contains more than one of a particular polyatomic ion, _____ must be used.

• ionic charges

• parenthesis

• Greek prefixes

• lower case letters.

EXAMPLES

Sr₃(PO₄)₂

POLYATOMIC

(PO₄)₂

Multiple Choice

In previous slide PO₄ has how many polyatomic ions do the have

• 1

• 2

• 3

• 4

Multiple Choice

How many nitrates are there in Al(NO₃)₃

• 9

• 3

• 6

• 1

Multiple Choice

How many acetate does this formula have Sr(C₂H₃O₂)₂

• 7

• 14

• 2

• 3

NAMINGCOMPOUND
WITHPOLYATIONIC

IONS

Look at the table to answers

the following question

Multiple Choice

Identify Cessium Nitrate

• CsNO₃

• Cs₂(NO₃)₃

• Cs₂NO₃

• Cs₃NO₃

Multiple Choice

What is the name of K₃PO₄?

• Tripotassium Phosphate

• Tripotassium Phosphite

• Potassium phosphide

• Potassium phosphate

Multiple Choice

What is the name of Al(NO₃)₃?

• Aluminum trinitrate

• Monoaluminum nitrate

• Aluminum (III) nitrate

• Aluminum Nitrate

Multiple Choice

What is the name of Mg(OH)₂?

• Magnesium Hydride

• Magnesium Dihydride

• Magnesium Dihydroxide

• Magnesium Hydroxide

Multiple Choice

What is the name of AgNO₃?

• Silver Nitrate

• Silver Mononitrate

• Silver (I) Nitrate

• Monosilver Nitrate

Multiple Choice

The chemical compound for sodium phosphate would be:

• NaPO₄

• Na₂PO₄

• Na₃PO₄

• Na(PO₄)₃

Multiple Choice

What is the correct formula for Ammonium phosphate?

• NH₄PO₄

• NH₄₃PO₄

• (NH₄)₃PO₄

• NH₄(PO₄)₃

HYDRATES

ACOMPOUND
WITHONEOR
MOREWATER

(H₂O)

Multiple Choice

Name the following hydrate:  NaCl * 5H₂O

• sodium chloride 

• sodium monochloride pentahydrate

• sodium chloride pentahydrate

• pentahydrate

Multiple Choice

Name the following ionic compound: MgSO₄*7H₂O

• magnesium sulfate hexahydarte

• magnesium sulfate hexahydarte

• magnesium sulfate heptahydrate

Multiple Choice

Na₂CO₃ · 10H₂O is known as sodium carbonate ______

• Hydroxide

• Hydrate

• Decahydrate

• None of the above