Is a corroding metal a physical or chemical change?
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Ответ:
Coording metal is a physical change.
Ответ:
8.90 x 10^-3
Explanation:
8.90 x 10^-3
It has to be 10^-3 (ten to the negative three) because when you move the decimal back to it's proper place you are moving it to the left.
and it has to be 8.90 because you have to observe correct sig figs. The 0 at the end of the number is significant because it is at the end of the number AND to the right of the decimal point.