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PilotLPTM [1.2K]
3 years ago
13

WILL RECIEVE MEDAL!If 1.2 kilograms of rust form on a bridge in five days, what should be the rate of reaction in grams per hour

? (Recall that a bar over the number means that zero is significant.)
100(first zero has bar over it) g/hr
0.05 g/hr
0.010 g/hr
10(zero has bar over it) g/hr,
Chemistry
1 answer:
serious [3.7K]3 years ago
8 0
<span>Since the answer is in grams, kilograms must first be converted to grams. A kilogram is equivalent to 1000 grams. Therefore, multiply 1.2 kilograms by 1000 and you get 1,200 grams. Then, calculate the number of hours in 5 days. Each day is 24 hours and 24 hours multiplied by 5 days equals 120 hours. Lastly, since the answer is in grams per hour, divide 1,200 grams by 120 hours and the resultant rate of reaction is 10 g/hr.</span>
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