6)Potassium dichromate decomposes by heat as shown in the following equation Heat
4K, Cr, O, → 4K, CrO4 + 302 + X
The compound (X) is used in
a)the industry of dyes
b)making heating coil
c)the electroplating
d)tanning

what is the answer

Cobalt-60 is an artificial radioisotope that is produced in a nuclear reactor and is used as a gamma-ray source in the treatment of certain types of cancer. if the wavelength of the gamma radiation from a cobalt-60 source is 1.00 × 10-3 nm, calculate the energy of a photon of this radiation.

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

Which is the solubility product expression for caf2(s)?  [ca2+]/[f–]2  [ca2+][f2–]  [ca]+[f]2  [ca2+][f–]2