How do i describe how to determine the specific heat of a sample of a solid substance

You may expect bonds between two atoms which each have n covalent lonic metallic hydrogen

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?

What is conserved in the reaction shown below? h2(g) + cl2 (g) --> 2hcl(g)a. mass onlyb. mass and moles onlyc. mass, moles, and molecules onlyd. mass, moles, molecules, and volume