Chapter Three Review
Name:
4f Y
1. How is a chemical compound different from an element?
Element
Compound
,^
____I
CMoyd#'###rm##e-er#mbs#IA,
¢rtlkr%do`fon#£md°ut°{finfunf
.„.`'"Iu,rf
2. Complete the table regarding the two basic types of compounds.
State the names of the two basic kinds of
compounds.
Describe how the atoms of the elements
join together for each of the abovecompounds.
Mg+2 mixes with S04-2. Describe where
each type of bondin8 OCcurs.
iohio
cov¢h__h_+
+`,+~".'rf'
G-„,Ordo
th8If#ffim!ente chfl filf S tiJ_th
¢fREir[ I i I V e d rcA-______,
',ulphtljcllmp4twoRon,in mflne|lurn'r
tit
*;;fu/
u
o1.
f tyerg± n era .
-___
ZLZ,``
3.Completethetablebydrawingawatermolecule.Indicateareaswhereco;alentbo£#
are located and then answer the questions.
Diagram
,.
:o¥c¥]ies?thesmallestpo:Siblesanpleofwaterasin8lewaterAo.
8 ® faffi i,
ev¢lonoe
both,.` un,enretlF[#//ul`
thtrotl now no room oh Wr vf llcho¢,f
b. Are the atoris in one water molecule covalently bonded to atoms in
neichbouring water molecule? Explain
#|
.==-I_.-_:_r,:.:_::i-:i_.i_;i::f:I_':_:+I:_i;;-ife
`u4.Thepolyatomiciondi€hromateisusedinthed€teetionofalcohol on a erson's breath.
Science 9 . Chemistry. Review
H/i+
Per8F=1
5. Determine whether the compound formed will be ionic or coval€nt.
Ionic or Covalent
Atoms
Potassium
Sulphur
Oxygen
Fluorine
40Vd /eh+
Sulphur
Broine
eo v fl / 4nf
Chlorine
Calcium
/ o n i c/
Copper
Iodine
/ o i `( G
Oxygen
Carbon
e 0 v „ / e `n i
I 0 a - ,`- c,
i:#diE:::kykyquAvdsBorm,tm®orENiteflthJ_,.
compounds form,
atom react to form ions which are
attractedtoeachotherbytheir_4/Z4eyzz4_charges.
7. Distinguish between reactants and products.
Reactants,
Products
__ _.__i
thy-i;,41 f a rrn ed Jf lul
gu!Jf l9!fI i i_A__I AS__j _A a than I _di
re
5rf
-,
_ ___i
fi
I
emloti_____
r/
8. Distinguish betw€€n an endoth€rmic change and an €xothermic change.
combined chemically.
Name
Elements
4oulitlm iodiale
Sodium
Iodine
Magnesium
Nitrogen
Zinc
Oxygen
Aluminum
Fluorine
ti/wminumMuoiialo
Calcium
Bromine
oo/Glum mroiriale
Potassium
Sulphur
siarf ImoR:9. cJha"srty. pJfrNyEN
moflnatiwmfrifrij4
±ind ifxide
11-I
I
n / 2,%
,
I_____,___
perpe2
10. Write the name of each of the following compounds.
a. K3N
P0fdloiwrnnifride
b. Cas
c. Ag2S
Si/v" ft/flh;ale
d. AIP
e. Sr3N2
thonhwm[nlhiid@
f. Cs20
•1,i,
8. M83P2
,
wh-in ut/phide
ZH
in;niihifhofflhi
_-alltlm
oK/'d8 I
,1',11'
h. AIF3
fl/tlminrfmfl/tlofiule
11.Writethec#emiealformu/la for/eachofthefonowingcompounds.
Kftr
a. Potassium Bromide
b. Potassium Oxide
/{2,0
fr/2-Og
c. Calcium Oxide
Oao
d. Aluminum Oxide
e. Aluminum Chloride
#/cyg
f. Aluminum sulphide
Ba 3 H 2~
9. Bariun Nitride
f\
if,2-e3
C¢z-
h. Cesium Iodide
12. Write the name of each of the following compounds.
a. Crc13
c. Fec12
e. Au20
8. Cu3P2
rorniwm(tli)Ch/ofide
f. Au203
apld(,)Ox`,d3_
X
mH-J
romiuM(ii)4Worde
d. Fe203
:iroh(II)Ohloridei
H--Bi,,
b. Crc12
%,,%
h. Cu3P
ron(,,,)Oxide
grD/d(,,,)Oy_`,__dg±
U4opFeifph?£P_hEL
/
13. Write the chemical formula for each of the following compounds.
a. Iron (11) Fluoride
Pe,F¢
b. Iron (Ill) Fluoride
c. Copper (I) Fluoride
OuF
d. Copper (I) Oxide
e. Copper (11) Oxide
44, C'
f. Tin (IV) Oxide
9. Nickel (Ill) Sulphide
iv'`4L€3
h. Tin (11) Oxide
Fe/ Fa
-C"?c,
-J7„02L
Snc)
14. Why are Roman numerals used when naming Compounds?
Science 9 . Chemistry. Review
Page 3
15.Writethenameofeachofth€fo»owing/mpounds.
a. qu4)3Pc.orH4)3po4
-flmmonltlmphoquteal>ri_
flmmoni urn phoapf i rd€*Smmoniwmfaofflhoie • qu4)3P03
d. Na3P03
e. Mg3(P04)29.Ca(OH)2
Oafltl/urn(/h
oifohde
' iatlfll hwalrd4th
f. Fec03
godium irhoto^i`fo
I.rDnriijmrbofldte
-¢opp¢,r(I)A
almird4T--V
h. CuOH
16. Write the chemical formula for each of the following compountls.
compounds.
a. Sodium Sulphate
No±10
c. Aluminum Hydroxide
frl A ( a H
e. A-oniuni Bisulphate
b. Calcium Nitrate
4dw03)qL
d. Strontium Bisulphate
4,(#sO`
NHif(Hsorf
f. Nickel all) Chlorate
r(NOz)If
h. Calcium sulphide
9. Iridiun (IV) Nitrite
N.,(C,03
C4 J
17.Whyarebracketsusedwhenwritingacomp®und'schemicalformula?
I8. Count the number of atoms in each compound.
a. K3P
c. NaN03
-w~-ur J,~/ J. -w H____
/
b. Ca3P2
5.
5
d. Ca3(P03)2
/ gGfo
e. Auqu03}4
/7
9. NH4Hs04
ff
f. V(CH3C00)5
h. orH4)3po4
Page 4
Science 9 . Chemistry. Review