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Symbols and Charges
Name and or write the following ionic compounds or Formulas
Mystery
Identify the compound as ionic or covalent. Then write the name
Identify the compound as ionic or covalent, then write the formula for the compound
100

  1. Write the symbol (including charge) for the following cation

                 Chromium (II) ion

Cr2+

100

Name the following ionic compound:
Fe₂(SO₄)₃

Iron (III) sulfate

100

For each property, state whether it is a characteristic of an ionic or covalent compound.

  1. High melting point 

  2. Poor conductivity

  3. Low solubility in water covalent

  4. Physical state is a gas at room temperature and pressure


1. ionic

2. covalent

3. covalent

4. covalent

100

Identify whether the compound is ionic or covalent, then write its name.


N₂O₄  

Covalent — Dinitrogen tetroxide

100

Identify whether it is ionic or covalent, then write the formula.

Sodium phosphate  

Ionic 

Na₃PO₄

200

  1. Write the symbol (including charge) for the following cation


Iron (III) ion


 Fe3

200

Write the correct formula for:
Copper (I) nitride

Cu₃N

200

Draw Lewis Structures for the compound. And then Specify their shapes.

PH₃

   ..

H:P:H

 ..

 H

trigonal pyramidal


200

Identify whether the compound is ionic or covalent, then write its name.


Al₂O₃  

Ionic — Aluminum oxide

200

Identify whether it is ionic or covalent, then write the formula. 


Aluminum sulfate

Ionic 


Al₂(SO₄)₃

300

Write the symbol (including charge) for the following cation


Manganese (VII) ion

Mn⁷⁺

300

Name the compound 


Cr(OH)₃  

Chromium (III) hydroxide

300

According to VSEPR theory, what causes some molecules to have a bent shape (as opposed to being linear or flat)?

Repulsive forces of unshared paired of electrons

300

Identify whether the compound is ionic or covalent, then write its name (include Roman numeral if needed).

Cu₃P₂

Ionic — Copper (II) phosphide

300

Identify whether it is ionic or covalent, then write the formula. 


Iron (III) nitrate

Ionic 

Fe(NO₃)₃

400

Write the symbol (including charge) for the following cation


Tin (IV) ion

Sn⁴⁺

400

Write the correct formula for:
Lead (IV) phosphate

Pb₃(PO₄)₄

400

Determine whether the following are polar or non-polar molecules

CF4         b) PCl3        c) CH3Br




 Nonpolar            Polar                   Polar

400

Identify whether the compound is ionic or covalent, then write its name 


P₄O₁₀

Covalent — Tetraphosphorus decoxide  

400

Identify whether it is ionic or covalent, then write the formula. 

Copper (II) hydrogen phosphate

Ionic 

Cu(HPO₄)₂

500

Write the symbol (including charge) for the following cation


Gold (III) ion

Au³⁺

500

Name the compound and determine the charge on cobalt:
Co₂O₃

Cobalt (III) oxide
Cobalt charge: +3

500

List the different types of intermolecular forces in order of increasing strength.

Dispersion Forces

Dipole Interactions

Hydrogen Bonds

500

Identify whether the compound is ionic or covalent, then write its name


Fe₂(SO₄)₃

Ionic — Iron (III) sulfate

500

Identify whether it is ionic or covalent, then write the formula. 

Lead (IV) phosphate  

Ionic

Pb₃(PO₄)₄