B) if a reaction starts with 700 of stibnite. 700 sodium
carbonate and 150 g of carbon, what would be the percent yield of
antimony if the actual yield is 495.g?

The correct answer is b

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.