Question

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

Answer 1

5 days= 5*24hours = 120
1.2kg = 1200 g
1200/120=10 g/hr
The answer to your question is D. I hope that this is the answer that you were looking for and it has helped you.

Answer 2

Answer:

its D! :)

Step-by-step explanation: