Chemistry
WAEC 2015
The following diagram illustrates the rate curve that was obtained when Mg reacted with excess dilute HCl.
The diagram became horizontal at X because
-
A.
The reaction was slowed down
-
B.
All the dilute HCl has reacted
-
C.
All the Mg has reacted
-
D.
Hydrogen gas is produced at a steady rate
Correct Answer: Option C
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