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Test 2C Balancing
Test 2C Balancing
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Test Review 2C balancing and types of reactions #westorangehighschool
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Answers
1
Balance this: KClO
3
→__KCl + __O
2
2,3,6
1,1,3
2,2,3
2,3,2
2
NaOH+H
2
SO
4
→ Na
2
SO
4
+ H
2
O is what type of reaction?
double replacement
single replacement
synthesis
acid / base
3
CaO+ P
2
O
5
→ Ca(PO
4
)
2
is what type of reaction?
combustion
single replacement
synthesis
double replacement
4
the reactants are compound and element, and the products are a different compound and element.
double replacement
synthesis
decompostion
single replacement
5
What are the (unbalanced) products of Calcium Phosphate + Cobalt (III)Tungstate →
CaWO3 + CoPO4
CaWO4 + CoPO4
CaWO4 + PO4Co
Ca2(WO4)2 + CoPO4
6
KClO
3
→ KCl + O
2
is what type of reaction?
combustion
decompostion
synthesis
single replacement
7
Hydroxide ion ?
H2O2 -1
HO +1
H2O
OH -1
8
In a(n)______ reaction, there are more than one reactant and a single product.
double replacement
single replacement
synthesis
decompostion
9
In every balanced equation, each side of the equation has the same number of
atoms of each of the elements
coefficient of each of the compounds
molecules of each of the elements
compounds on each side
10
Predict the products between CH
3
+O
2
→
you can not tell
CO2 and H3O2
CO2 and H2O
salt and water
11
Balance this: Al(NO
3
)
3
+ _NaOH → _Al(OH)
3
+_ NaNO
3, what are the coefficients?
3,1, 2,6
1,2,3,1
1,3,1,3
1,1,1,3
12
What are the balanced products of Calcium Phosphate + Cobalt (III)Tungstate →
2Ca2(WO4)2 + 3CoPO4
CaWO4 + 2PO4Co
3CaWO3 + 3CoPO4
3CaWO4 + 2CoPO4
13
balance this: __NH
3
+_O
2
→ __NO + ___H
2
O
4,5,4,6
4,10,4,6
1,1,1,1
2,3,2,3
14
No new matter is created or destroyed. All elements in the reactants are in the products.
Law of conservation of energy
Some unknown chemistry mystery
Mrs. Yates' law
Law of conservation of mass
15
Cyanide ion?
CH3 -1
CN -1
Cn -2
CO -1
16
In a(n)___________ reaction, a compound breaks down into two or more products.
synthesis
double replacement
decompostion
single replacement
17
Predict the products between Al(NO
3
)
3
+ NaOH→
Al(OH)3 + NO3Na
Al(OH)3 + Na3NO3
Al(OH)3 + NaNO3
AlNa + (OH)3 NO3
18
balance it: ___Al+ _CuCl
2
→ _ AlCl
3
+_Cu
1,3,1,3
1,1,1,1
1,3,2,1
2,3,2,3
19
A(n)_________________reaction takes place between two ionic compounds .
double replacement
decompostion
acid/base
synthesis
20
NaCl + Cu → is what type of reaction?
no reaction
acid / base
double replacement
single replacement
21
What compounds are produced by a combustion reaction involving a hydrocarbon?
carbon and oxygen
carbon monoxide and water
water and a salt
carbon dioxide and water
22
Ammonium ion ?
N4 +1
AmO4 -1
SbO3 -2
NH4 +1
23
NH
3
+ O
2
→ NO + H
2
O is what type of reaction?
Acid/base & double replacement
decompostion
combustion
synthesis
24
Predict the products, write and balance the equation for ethane, C
2
H
6
,burning in oxygen
C2H6 + O2 → C2O + H6O
2C2H6 + 7O2→4CO2 + 6H2O
C2H6 + 3O2 →2CO2 + 3H2O
C2H6 + O2 → C2+ 6H
