how do the bohr model and the quantum mechcanical model of the atom differ in how they describe electrons?

How many moles of lithium nitrate will be needed to make 250 grams of lithium sulfate, assuming that you have an excess of lead (iv sulfate to do the reaction?

Which substance reacts with an acid or a base to control ph?

What is the first element to have p electrons? A. helium B. lithium C. boron D. aluminum

I want to balance Fe2so4+H20

What is the enviromental problem/issue in the ecosystem?

A 0.250-g chunk of sodium metal is cautiously dropped into a mixture of 50.0 g of water and 50.0 g of ice, both at 08C. The reaction is 2Na (s) 1 2H2O (l) 88n 2NaOH (aq) 1 H2 (g) DH 5 2368 kJ

How many moles of N are in 0.203 g of N2O?

An atom has a charge of +1 in its nucleus. Which statement must be true in order for this atom to have no net charge? A. The one positive proton has no influence on the overall charge of the atom. B.

A chemist uses 0.25 L of 2.00 M H2SO4 to completely neutralize a 2.00 L of solution of NaOH. The balanced chemical equation of the reaction is given below. What is the concentration of NaOH that is used?

How to find the number of neutrons in an atom