What is the gram formula mass of K2CO3?
1. 138 g
2. 106 g
3. 99 g
4. 67 g

Water's surface tension and heat storage capacity are accounted for by its a) orbitals b) weight c) hydrogen bonds d) mass e) size

Which characteristics can be used to differentiate star systems? check all that apply.

From the options provided for each element below, choose the properties that it may have based on its location in the periodic table fluorine (f): highly reactive nonmetal shiny a conductor