What is the concentration of carbonate ion, CO₃²⁻ (aq), in 100 mL of 0.020 mol/L K₂CO₃ (aq)? 0.010 mol/L
0.0020 mol/L
0.020 mol/L
0.040 mol/L

Which is a difference between molecular compounds and ionic compounds? select the correct answer below: question 5 options: molecular compounds typically form between a metal and a nonmetal, while ionic compounds typically form between nonmetals. molecular compounds result from the transfer of electrons between atoms to form ions, while ionic compounds result from the sharing of electrons between neutral atoms. molecular compounds are formed of discrete, neutral molecules, while ionic compounds are formed of large repeating arrays of opposite charges. molecular compounds have high melting points and high boiling points, while ionic

Which other elements contain the same number of outer electrons as sodium

The volume of helium in a blimp is 6.28 x 10^9 millimeters. the density of helium in the blimp is .1786 kilogram/meter^3. find the mass of the helium in the blimp.