A solution of hydrochloric acid is placed on a balance. Magnesium metal is added and the mass is recorded. The solution is stirred and the mass of the solution is recorded every 10 minutes. The following data is collected:
Time (min) Mass of Hydrochloric Acid and Magnesium (g)
0 160.0 g
10 156.5 g
20 152.0 g
30 147.5 g
40 142.5 g
What does the data show is occurring?
A.
The hydrochloric acid and magnesium metal react to form a precipitate.
B.
The hydrochloric acid and magnesium metal react to form a soluble compound.
C.
The hydrochloric acid and magnesium metal do not react.
D.
The hydrochloric acid and magnesium metal react to form a gas.
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Answer:
D.
The hydrochloric acid and magnesium metal react to form a gas.
Explanation:
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