Find the average atomic mass of Kryptonite if 60% of the sample is Ky-40, 30% is Ky-45, and 10% is Ky-38..

Each of the following compounds contains a metal that can exhibit more than one ionic charge. provide systematic names for each of these compounds. (a) cr(clo3)6 (b) mo(cn)6 (c) cr2(so3)3 (d) v(clo2)2 (e) v(cn)5 (f) os(clo2)4

Atrain travels 74 kilometers in 3 hours, and then 81 kilometers in 5 hours. what is its average speed?

What state of matter is ice a. liquid b. element c. solid d. gas