carry out the following operations as if they were calculations of experimental results. express each anser in the correct units with the correct number of significant figures (3 x 10^4 g +6.827g)/(0.043cm^3 - 0.021 cm^3)

The molecules contain like 54 of water 

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.