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

How does the energy of electrons change as you move far away from the nucleus

How to find protons, neutrons, electrons of an element.

Benzene can be converted to 1,3,5-tribromobenzene in five reaction steps and four intermediate compounds. Select the appropriate reagent from the followings. Br2, R2O2 CH3Cl, AlCl3 CH3COCl, AlCl3 NaNO2, HCl HNO3, H2SO4 H3PO2 H3PO4 KMnO4

What is the atomic number

How would a physicist be involved in addressing concerns about air pollution

How many molecules are in 237g (about a cup of water)

3. A compound was analyzed and found to contain 9.8 g of nitrogen, 0.70 g of hydrogen, and 33.6 g of oxygen. What is the empirical formula of the compound?

A 126-gram sample of titanium metal is heated from 20.0°C to 45.4°C while absorbing 1.68 kJ of heat. What is the specific heat of titanium?

What pressure (in atm) will a sample of o2 gas occupy at 100.0 ml, if o2 has a volume of 25.00 ml at 2.0 atm?

What happens when francium and nitrogen are mixed