One way to treat cancer but minimize the toxic effects of radiation is to use:

The spread of cancer is termed:

What is the frequency of a photon having an energy of 9.08 × 10–16 J?

What is the frequency of a photon having an energy of 9.08 × 10–16 J?

What is the wavelength, in m, of a photon having a frequency of 87.9 ks-1?  (If you wish, you can show math work for possible partial credit.)

The decomposition of iodine pentafluoride be represented by the equation:     IF5(g)  →  IF3(g) + F2(g)  ΔH = ? Use the following information to find ΔH for the reaction above.     IF(g)  + F2(g) →  IF3(g)   ΔH = -390. kJ     IF(g)  + 2F2(g) →  IF5(g)   ΔH = -745 kJ                      

Use standard enthalpies of formation provided to calculate ΔHorxn for the following reaction: C2H5OH(l) + 3 O2(g) → 2 CO2(g) + 3 H2O(g) Substance ΔHof (kJ/mol) C2H5OH(l) -277.6 CO2(g) -393.5 O2(g) 0 H2O(g) -241.8

A piece of unknown solid substance weighs 437.2 g, and requires 8460 J to increase its temperature from 19.3 °C to 68.9 °C.  Determine its specific heat capacity. Show your work.

Match: Note there are more matching possibilities than needed.

Calculate the energy of the green light emitted, per photon, by a mercury lamp with a frequency of 5.49 × 1014 s-1.