Which is the same length as a light-year? A. the distance light travels in one year
B. the distance from the sun to Earth
C. the distance from Mercury to Neptune

PLEASE HELP!!!

Many ionic compounds and a few highly polar covalent compounds are because they completely ionize in water to create a solution filled with charged ions that can conduct an electric current.

Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?

What volume of a 0.0606 m solution of strontium bromide is needed to obtain 0.340 mol of the compound? question 42 options: a)5.61 l b) 3.4 l c) 600 ml d) 1 l e) 178 ml