Consider a hydrogen atom in the ground state. What is the energy of its electron?

which is, - 2.1799 X10^-18 J

Now consider an excited-state hydrogen atom. What is the energy of electron in the n=2 level?

Compare the state of plasma to the other states of matter

A chemical element is a pure substance that consists entirely of what?

What happens when we put oil into water? a. mixture is created. b. oil will dissolve in water. c. oil will separate from the water.

What do carbon 12 carbon 13 and carbon 14 have in common?

List two potential problems with burning garbage.

Crude oil may contain hundreds of different types of hydrocarbons. Some examples include: Butane (C4H10) Dodecane (C12H26) Octane (C8H18) Benzene (C6H6) Many common fuels, such as gasoline and kerosene, are combinations of these substances or others.

What will happen if the concentration of water inside a cell is higher than the concentration of water outside a cell?

During a lab, you heat 1.04 g of a niso4 hydrate over a bunsen burner. after heating, the final mass of the dehydrated compound is 0.61 g. determine the formula of the hydrate and also give the full name of the hydrate.

Which molecule is a source of energy, a store of energy, and can mix with water?

How many atoms will you find in 2.0 moles of he?