Can someone help me solve these three equations for me it helps me a lot if you help out. What is the frequency of a 9.6 x 10^-13 m wave?

What is the energy of a 9.66 x 10^12? Hz wave?

What is the frequency of a wave carrying 2.95 x 10^-17 J of energy?

If 200.0g of copper(ll) sulfate react with an excess of zinc metal, what is the theoretical yield of copper

For the following dehydrohalogenation (e2) reaction, draw the zaitsev product(s) resulting from elimination involving c3–c4 (i.e., the carbon atoms depicted with stereobonds). show the product stereochemistry clearly. if there is more than one organic product, both products may be drawn in the same box. ignore elimination involving c3 or c4 and any carbon atom other than c4 or c3.

How does the viscosity of magma change as magma cools?