Students use a 2.5 M solution of diluted hydrochloric acid. The Molarity of the solution they end up with is .125 M. and had a volume of 5500mL. What volume of the concentrated HCl did they begin with?

It will fall off and tip over. 

C. 1s22s22p63s23p43d104s24p5

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.