Which of the following could cause a change in state from a liquid to a solid?

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

In all living cells dna controls cellular activities by

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