Where does the majority of drinking water come from in rural areas in North Carolina?

A.

groundwater

B.

rivers

C.

oceans

D.

ponds

According to observations, the overall chemical composition of our solar system and other similar star systems is approximately (a) 98% hydrogen and helium, 2% all other elements combined; (b) 98% ice, 2% metal and rock; (c) 100% hydrogen and helium.

What kind of element has the greatest tendency to attract electrons? why?

The first four ionization energies for an imaginary element, Xz, are E1 = 102 kcal, E2 = 186 kcal, E3 = 4021 kcal, and E4 = 4862 kcal. The most probable number of valence electrons as indicated by this ionization data is:

Select the correct answer. What statement is true about the presence of cl - in solution? A. It will cause an increase in the pH. B. It will cause a decrease in the pH. с. It will not affect the pH. D It will cause an increase in OH ions.

A block of wood has a mass of 120g and a volume of 200cm what is the density

Which type of experiment follows ethical standards?

What kind of change occurs when a compound is separated into its components?

The reaction rate low is independent of which of the following charactetics • Reactor type] • Temperature • Concentration of components • Pressure

Given that the equilibrium constant for a reaction is 0.00010, what does this tell us about the position of equilibrium for that reaction?

1. Ionic compounds generally form solids because: