Which of the following elements is not a transition metal?

a. copper
c. sodium
b. chromium
d. iron

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

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.