6.2 Classifying Chemical Equations (E) Prequiz

Multiple Choice
Identify the choice that best completes the statement or answers the question.

____	1.	The word equation solid carbon + oxygen gas ® carbon dioxide gas + energy, represents a chemical reaction because
a.	the reaction releases energy.	
b.	CO2 has chemical properties that differ from those of C and O.	
c.	the reaction absorbs energy.	
d.	CO2 is a gas and carbon is a crystal.	

____	2.	A reaction of a hydrocarbon, in which carbon dioxide and water are produced, is classified as a
a.	decomposition reaction.	c.	double-displacement reaction.	
b.	combustion reaction.	d.	synthesis reaction.	

____	3.	In what kind of reaction do two or more substances combine to form a new compound?
a.	decomposition reaction	c.	double-displacement reaction	
b.	ionic reaction	d.	synthesis reaction	

____	4.	The equation A + X ® AX is the general equation for a(n)
a.	combustion reaction.	c.	synthesis reaction.	
b.	ionic reaction.	d.	double-displacement reaction.	

____	5.	In what kind of reaction does a single compound produce two or more simpler substances?
a.	decomposition reaction	c.	displacement reaction	
b.	synthesis reaction	d.	ionic reaction	

____	6.	The reaction 2KClO3(s) ® 2KCl(s) + 3O2(g) is a(n)
a.	synthesis reaction.	c.	combustion reaction.	
b.	decomposition reaction.	d.	ionic reaction.	

____	7.	The reaction Cl2(g) + 2KBr(aq) ® 2KCl(aq) + Br2(l) is a(n)
a.	synthesis reaction.	c.	displacement reaction.	
b.	ionic reaction.	d.	combustion reaction.	

____	8.	What is the name of a list of elements arranged according to the ease with which they undergo certain chemical reactions?
a.	reactivity list	c.	activity series	
b.	reaction sequence	d.	periodic list	

6.2 Classifying Chemical Equations (E) Prequiz
Answer Section

MULTIPLE CHOICE

	1.	ANS:	B	PTS:	1	DIF:	I	OBJ:	8.1.2
STA:	II.I.I.9-12.12

	2.	ANS:	B	PTS:	1	DIF:	I	OBJ:	8.3.1
STA:	II.I.I.9-12.13

	3.	ANS:	D	PTS:	1	DIF:	I	OBJ:	8.3.2
STA:	II.I.I.9-12.13

	4.	ANS:	C	PTS:	1	DIF:	II	OBJ:	8.3.2
STA:	II.I.I.9-12.13

	5.	ANS:	A	PTS:	1	DIF:	I	OBJ:	8.3.3
STA:	II.I.I.9-12.13

	6.	ANS:	B	PTS:	1	DIF:	I	OBJ:	8.3.3
STA:	II.I.I.9-12.13

	7.	ANS:	C	PTS:	1	DIF:	II	OBJ:	8.3.4
STA:	II.I.I.9-12.13

	8.	ANS:	C	PTS:	1	DIF:	I	OBJ:	8.3.4
STA:	II.I.I.9-12.12