What is the wavelength of radio waves?
a. between 1 x 10-3 and 1 x 10^1 meters
b. less than 1 x 10-11 meters
c. more than 1 x 10-4 meters
d. between 1 x 10-8-4x 10-7 meters
e. between 4 x 10-7-7x 10-7 meters

What is the mass of 4 molecules of co2

What is the molar mass of the anhydrous compound? answer using four significant figures. 36.02 g/mol 120.15 g/mol 156.12 g/mol

There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .