Which of the following is not a correct formula unit?

MgO

Ca2N3

KCl

Li3N

Select the correct answer. In a given chemical reaction, the energy of the products is less tha the energy of the reactants. Which statement is true for this chemical reaction? A Energy is absorbed in the reaction. B.

What do electrons determine? need answer now

Gallium is composed of two naturally occurring isotopes: Ga-69 (60.108%) and Ga-71. The ratio of the masses of the two isotopes is 1.0290. What is the mass of Ga-69?

How many equivalents are present in 5.0 g of al3+?

The carbon and oxygen in carbon monoxide are joined by what type of bond or bonds?

Choose all the answers that apply. Which of the following has kinetic energy? rolling ball, moving car, book on a table, spinning top, or a falling tree.

Calculate the grams of solute needed to prepare each of the following solutions. 1.8 L of a 5.5 M NaOH solution

If 0.20 bushel is 1 dozen apples and a dozen apples has a mass of 2.0 kg, what is the mass of 0.50 bushel apples?

Atmospheric pressure is 1.00 atm, but air is only composed of 21.0% (by moles) oxygen. thus, the partial pressure of oxygen in air is less than 1.00 atm.

Your answer should have the same number of significant figures as the starting measurement. 3201 mL = cm³