10 grams of potassium is placed into a solution of hydrochloric acid. After 20 seconds, 4.4 grams of potassium remained. What was the average rate of reaction?
A) 0) 12 grams/sec
B) 0) 19 grams/sec
C) 0) 28 grams/sec
D) 0) 34 grams/sec
E) 0) 50 grams/sec
Correct Answer:
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