The lattice energy of KBr is 671.0 kJ/mol and its heat of solution is 19.9 kJ/mol. Calculate the hydration of energy of KBr (s).

An atom of argon in the ground state tends not to bond with an atom of a different element because the argon atom has (1) more protons than neutrons (2) more neutrons than protons (3) a total of two valence electrons (4) a total of eight valence

What is the volume of a gas a t320 K, if the gas occupies 50.0 mL at a temperature of 273 K?

which of the following is not an example of a chemical reaction? A. a loaf of bread is baked in an oven B. a loaf of bread molds in a pantry C. a loaf of bread is sliced with a knife D. a loaf of bread is digested in the stomach

What does la chateliers principle state

Why is cng preferred over petrol or diesel?

A substance which is made up of identical atoms is a (n): chemical element compound alloy

Which answer choice correctly explains how the structure of ionic compounds differs from covalent compounds? Ionic compounds are made of a network of ions while covalent compounds are made of a network of molecules.

If 3.0 mol of NaOH is dissolved in. 50 L of water, what is the molarity? Select one

How many electrons in an atom can have a quantum number of n = 2?

Which statement comparing chemical and nuclear properties of isotopes is correct? Isotopes have similar chemical and nuclear properties. Isotopes have different chemical and nuclear properties.