What is the frequency of a photon of wavelength 35 centimeters (cm)? 857 MHz
105 MHz
2.86 Hz
1.16 Hz

What is a difference between a mixture of elements and a mixture of compounds

To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. a chemical engineer places a mixture of noble gases consisting of 4.37 g of he, 13.36 g of ne, and 36.65 g of kr in a piston-cylinder assembly at stp. calculate the partial pressure in torr of kr.

The time that is taken by neptune once around the sun is called