What is the energy of an electromagnetic wave with a frequency of 3 x 109

Hz?

A. 5.96 x 10-17

B. 6.63 x 10-35 u

c. 9.00 x 1017

D. 1.99 x 10-24

Breaking bonds requires what type of energy flow?

Calculate the time required for a constant current of 0.800 A to deposit 0.250 g of (a) Co (II) as the element on a cathode and (b) as Co3O4 on an anode. Assume 100% current efficiency for both cases.

Define power and explain how to determine power.

In most lewis dot structures of neutral compounds, carbon as the central atom will be bound to a maximum of how many atoms, nitrogen will be bound to a maximum of how many atoms, and oxygen will be bound to a maximum of how many atoms?

Which of the following represents a compound? a. H c. H2O b. H-3 d. O-16

What is the term for the amount of salts in water? Evaporation Evaporation Salinity Thermocline Density

In an acid-base titration, of 20 ml of a m HCI solution with 1 m NaOH. How many ml of NaOH are needed

Which of the following is not a source of air pollution related to human activities

Objects and substances in motion is I

If you were to remove an electron from a sodium atom that has eleven protons, what would be the electrical charge of the ion?