What are covalent compounds composed of?

A. a metal and a metal

B. a metal and a non metal

C. a nonmetal and a nonmetal

D. an alkali metal and a nonmetal

Use impermeable in a sentence

Which is a characteristic of a decomposition reaction? Substance P replaces X in the compound XY. Substance XYZ breaks down into X, Y, and Z. Substance Z burns in the presence of oxygen to form ZO. Substance X combines with Y to form compound XY.

Calculation of NCl3

Which element configuration is 1s2 2s2 2p6 3s2 3p5

Where is the type of force a person stands on the floor and his weight is 752 in in the pressure exerted from his feet on the floor it is 9002PA what is the area of his feet in square meters

A certain radioactive element has a half-life of one hour. if you start with 1.0 gram of the element at noon, how much of the radioactive element will be left at 2 p. m.? 0.50 grams 0.25 grams 0.125 grams 0.0 grams

Name two bases which react with dillute sulfuric acid to give zinc sulfate

What is the correct name for the compound nh4clo4?

What is the molality of a solution when 1.2 moles MgCl2 is stirred in 1000 grams of water?

How many elements are in one molecule of Methane? How many elements are in one molecule of Ammonia? How many elements are in one molecule of Vinyl Alcohol? How many elements are in one molecule of Ethylene?