r i
ANSWER KEY
Page 4:2
Write the formulas of the compounds produced
..
.'
CI·
CO,·'
OH·
Na'
NaCI
Na,CO,
NaOH
Na,SO,
Na,PO,
NaNO,
NH;
NH,CI
(NHj,CO,
NH.oH
(NH,),SO,
(NH.),PO,
NaNO,
K'
KCI
K,C03
KOH
K,SO,
K,PO,
KN03
Ca·
ceci,
CaC03
Ca(OH)2
CaSO,
Ca,(PO.)2
Ca(NO)2
Mg"
MgCI2
MgC03
Mg(OH)2
MgSO,
Mg,(PO.),
Mg(NO)2
Zn+2
z-c,
znco,
Zn(OH),
ZnSO,
Zn3(PO.)2
Zn(N03),
Fe·3
FeCI3
Fe,(C03)3
Fe(OH)3
Fe,(SO')3
FePO,
Fe(NO,)3
~A1'3 .
AICI3
AI,(C03)3
AI(OH);"
AI~SO:);~
;'A!E'Qj.'i
AI(N03)3
Co'"
CoCI3
CO,(C03),
CO(OH)3 CO,(SO')3
COPO,
CO(N03)3
Fe·2
FeCI,
FeC03
Fe(OH)2
Fe3(PO,),
Fe(NO,"l,
H,C03
HOH or H,O
H,PO,
~N03
PO·'
NO,· Calcium
c
_
Ionic bonding occurs when a metcl hcnstersone or more electrons 10a nonmelolln on effort to attain a stable octet of electrons. For example. the tronsrer of on electron (rom sodium to chlorine con be depicted by a lewis dol diagram.
trom the jsted Ions
SO;'
Name
IONIC BONDING
Name
WRITING FORMULAS (CRISS-CROSS METHOD)
would
need
two chlorine
atoms
10 gel
rid of lis two valence
electrons.
Show the ironsfer of electrons In the following comblnollons
2
K + F
I.
K" + .F: •• 2. Mg + I
HCI
H2SO,
~
nf\
" 1,9
t2.I-
2..
..
Be:~. +. S: --} 5.
FeSO,
•
.. :cO ~I··~ ..•. ~. m· 9 +.. ..
3. Be + S
H'
..
~
~+
."..
er
.I)t".
t.:
_Q- •
..~!~.A'. Page 38
Nome
COVALENT BONDING
_
TYPES OF CHEMICAL
I. CaCI, -.("':\
~\ZC;:.J!J --
bondInG
occurs
In each
nol 8, electrons.
of the following
pons of 010f115. Atoms
11+ H (H,)
2.
F
6. H
ionic-
CD vo: Ieot
12.
NH,CI
~O~
J.
H2O
c..ova.\ent
13. Hel
4. 8050,
~
5. K10
_LQmt- ___
15. NoOH
6. NoF
_lon\ c,
16. NOz
c.cvobrt' \0\'\\(",
101. KI
F (F,)
+
3. 0
11. MgO
mov
shore one. two or three polrs of electrons. I.
iOOic.
+
Note thai hydrogen Is con lent wllh 2.
2. COl Show how covalent
--------
Classify the followlng compounds as IonIc (metal + nonmetal), covalent (nonmetal nonmetal) or both (compound contolnlng a polvotcmlc Jon).
Covalent bonding occurs when two or more nonmetals share electrons, otleropt!ng 10 attain a stable octet of electrons at leost porI of the lime. for example:
-
Name
BONDS
+
+
0 (0,)
°
(H,O)
Page 39 Chemistry
~
7. No2COJ
bath
17. AIPO.
bath
8.
CH.
c.ovaknt
18. FeCI]
Ionic..
Q.
SOl
tovd\ent
19. Pl0~
)( )(
H·t"Q" +.H-7
~1kL
10. lIBr
Ionic..
20. N,OJ
~
(.()vQ.le.,t
Page 40 IF8766
112
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Fair, lnc.
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