According to naming conventions, which class of organic compounds does methanal belong to?

Which best describes why nh4+ can form an ionic bond with ci-?

There is one girl i like and i don't know how to tell her that, i have a feeling she knows but if she doesn't i don't want to make a fool out of myself how is one way to boost my confidence on asking her out

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.