Chemical Bonding Pre Test Answer Key

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Name: __________________________ Period: _____ Date: _____________________
Chapter 5: Compounds Pre/Post Test
1.
Metals tend to _________________________ electrons, form _____________ ions
and can be found on the ___________ hand side of the periodic table.
2.
Nonmetals tend to ____________________ electrons, form ______________
ions and can be found on the ____________ hand side of the periodic table.
3–4.
Here is a periodic table. Draw the Lewis diagram and label the charge (oxidation #) of
each family. Skip 3 – 12.
Skip these for now.
5.
________________________ bonds form between metals and nonmetals when
electrons are _____________________.
6.
_________________________ bonds form between two nonmetals when electrons
are ______________________.
Identify the following as ionic or covalent bonds.
7. ________________________ CO2
8. ________________________ (NH4)2O
9. ________________________ FeI3
Determine the charge on each metal ion in bold.
10. _________ AgO
11. _________ Fe2O3
12. _________ CuSO4
Determine the total number of atoms of each element in the following compounds.
13. C2H4
C = ________
H = ________
14. H3PO4
H = ________
P = ________
O = ________
15. Ni(OH)2
Ni = ________
O = ________
H = ________
Use Lewis diagrams to show the bonding between the following atoms. Make sure to use the
correct method to show gaining, losing, or sharing.
16. Na + S
17. C + F
Write the name of the compound for each example given.
18. ___________________________ LiNO3
19. ___________________________ CaCl2
20. ___________________________ SBr2
Write the formula for each compound given.
21. ____________ magnesium iodide
22. ____________ diphosphorus trioxide
23. ____________ strontium sulfate
Balance the following chemical equations.
24.
_____ Fe + _____ Cl2  _____ FeCl3
25.
_____ H2 + _____ N2  _____ NH3
26.
_____ CaCl2 + _____ AgNO3  _____ AgCl + _____ Ca(NO3)2
Write and balance the following chemical equations.
27. Chlorine gas reacts with potassium bromide to form potassium chloride and bromine.
28. Calcium oxide reacts with sulfur dioxide to form calcium sulfite.
Chapter 5: Compounds Pre/Post Test
1.
Metals tend to _give away_ electrons, form _positive_ ions
and can be found on the _left_ hand side of the periodic table.
2.
Nonmetals tend to _take away_ electrons, form _negative_
ions and can be found on the _right hand_ side of the periodic table.
3– 4. Here is a periodic table. Draw the Lewis diagram and label the charge
(oxidation #) of each family. Skip 3 – 12.
Skip these for now.
5. _ionic_ bonds form between metals and nonmetals when electrons are _transferred_.
6. _covalent_ bonds form between two nonmetals when electrons are _shared_.
Identify the following as ionic or covalent bonds.
7. _ covalent _ CO2
8. _both_ (NH4)2O (the bonds that hold N and H together are covalent. The
bonds that hold NH4 and O together are ionic.)
9. _ ionic _ FeI3
Determine the charge on each metal ion in bold.
10. _+2_ AgO
11. _+3_ Fe2O3
12. _+2_ CuSO4
Determine the total number of atoms of each element in the following compounds.
13. C2H4
C = _2_
H = _4_
14. H3PO4
H = _3_
P = _1_
O = _4_
15. Ni(OH)2
Ni = _1_
O = _2_
H = _2_
Use Lewis diagrams to show the bonding between the following atoms. Make sure to use the
correct method to show gaining, losing, or sharing.
16. Na + S
17. C + F
Write the name of the compound for each example given.
18. _lithium nitrate_ LiNO3
19. _calcium chloride_ CaCl2
20. _sulfur dibromide_ SBr2
Write the formula for each compound given.
21. _MgI2_ magnesium iodide
22. _P2O3_ diphosphorus trioxide
23. _SrSO4_ strontium sulfate
Balance the following chemical equations.
24.
_2_ Fe + _3_ Cl2  _2_ FeCl3
25.
_3_ H2 + _____ N2  _2_ NH3
26.
_____ CaCl2 + _2_ AgNO3  _2_ AgCl + _____ Ca(NO3)2
Write and balance the following chemical equations.
27. Chlorine gas reacts with potassium bromide to form potassium chloride and bromine.
Cl2 + KBr  KCl + Br2 (unbalanced)
Cl2 + 2 KBr  2 KCl + Br2 (balanced)
28. Calcium oxide reacts with sulfur dioxide to form calcium sulfite.
CaO + SO2  CaSO3 (balanced)
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