The statement "matter can be neither created nor destroyed by chemical means, but it can be changed from one form to another" is the chemical law of

conservation of matter

Which substances have the lowest melting points: ionic covalent, or metallic

98 ! and brainliest plz ! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

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