A substance that does not conduct electricity as a solid but does conduct electricity when melted is most likely classified as

(1) an ionic compound

(2) a molecular compound

(3) a metal

(4) a nonmetal

Write an equation that shows the formation of the phosphide ion from a neutral phosphorus atom.

Explain why the energy passing from a row of toppling dominoes is like the energy passing through an ecosystem.

How do gamma rays differ from a microwave

What's the difference between a chromosome and a chromatid?

What organisms are most of the life forms you can see

How many moles of neon (Ne, 20.179 g/mol) are in 68.4 grams of neon

A 50.00 mL sample of groundwater is titrated with 0.0300 M EDTA. Of 12.40 mL of EDTA is required to titrate the 50.00 mL sample, what is the hardness of the groundwater in molarity and in parts per million of CaCO 3 by mass

Why openness is important to the progress of science?

At a certain temperature the rate of this reaction is second order in NH4OH with a rate constant of 34.1 M^-1s^-1: Suppose a vessel contains NH4OH at a concentration of 0.100M.

If you go into the lab and dissolve 2.11 g of magnesium chloride in enough water to make 1500 ml of solution, what is the molarity of the resulting solution?