Answers by visitors named: roxanne

My answer that i got is 5.99E22 i followed your step all the way till the periodic table.. from there i got Sc atomic mass as 44.96 g then i multiply it by i atom/7.50E-22 then i got the answer 5.99E22....is my steps and answer correct?

It is a power point presentation. Just needed another pair of eyes to look at it. Thank you for your help.

15 might be correct

The answer is 406.38, K is correct just took the test and can confirm.