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SAT
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Chemistry
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chemical formulae
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Q)
Which of the following equations does NOT demonstrate the law of conservation of mass?
(
a
)
N
a
O
H
+
H
C
l
→
N
a
c
l
H
2
O
(
b
)
P
4
+
5
O
2
→
2
P
4
O
10
(
c
)
2
N
a
+
c
l
2
→
N
a
c
l
(
d
)
S
n
C
l
2
+
2
F
e
C
l
3
→
2
F
e
C
l
2
+
S
n
C
l
4
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