Melting Point degree Celsius & Boiling Point degree Celsius A. - 259 - 253
B. 0 100
C. 3700(sublimes)
D. - 116 34.5
E. 801 1413

Which substance has the greatest distance between the particles at the 25degree Celsius? Explain your 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.

Which statement best describes the he properties of iconic compounds ?

How many moles of bromine are needed to produce 3.23 moles of potassium bromide