Which element are in the compound CoCI2?

Choose all correct answers.

Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?

What items could scientists use to date a layer of rock