1.A laser emits light of frequency 9.46 x 1015 sec-1. What is the wavelength of the light? 2.A certain electromagnetic wave has a wavelength of 4.35 x10-8m. What is the frequency of the wave?

3.Calculate the energy, in joules, of a single photon associated with frequency of 8.00x1016sec-1.

4.Calculate the Energy, of radio wave with a wavelength of 6.6 X 10-9m

5.Arrange the following in increasing order of Frequency.

Ultraviolet rays, Gamma rays, Radio Waves, Microwaves and Infra- red waves

6.Arrange the following in the decreasing order of Energy

Infrared Rays, Ultraviolet Rays, Microwaves, Radio Waves, and Gamma Rays

7.Which Electromagnetic Radiation has the longest wavelength.

Microwaves, Gamma Rays, or Radio Waves

During metamorphic processes, increased pressure and temperature can affect the of minerals in rock. rocks subjected to very high pressure are typically than others because mineral grains are squeezed together, and the atoms are more closely packed. during metamorphic processes, water facilitates the transfer of ions between and within minerals, which can the rate at which metamorphic reactions take place. the growth of new minerals within a rock during metamorphism has been estimated to be about per million years. metamorphism is commonly associated with convergent plate boundaries, where two plates move toward each other. during contact metamorphism, a large intrusion will contain thermal energy and will cool much more slowly than a small one. metamorphosed sandstone is known as the metamorphic rock made from metamorphosed shale, was once used to make blackboards for classrooms.

Compare the equilibrium constants for the systems shown in the table. which favors products the most? which favors products the least? rank these systems in order from most to least in terms of favoring products rather than reactants. d > b > a > c c > a > b > d b > c > d > a a > d > c > b

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal. b. he is determining chemical properties that are sufficient to identify the metal. c. he is determining physical properties that are insufficient to identify the metal. d. he is determining chemical properties that are insufficient to identify the metal.