What does Hess's law say about the total enthalpy change for a reaction

Can you dissolve 0.35 moles of Potassium Permanganate (KMnO4) into 500 mL of water?

Sea water contains roughly 28.0 g of nacl per liter. What is the molarity of sodium chloride in sea water?

How many hybrid orbitals do we use to describe each molecule?

An over-the-counter medicated foot powder contains camphor, eucalyptus oil, lemonoil, and zinc oxide. Only one of the ingredients is antimicrobial. Which one? How does it act against fungi? The zinc oxide is the antimicrobial in the foot powder.

What can the student predict if she finds the mass of the whole candy bar, including the wrapper?

Several steps are involved in the industrial production of sulfuric acid. One step involves the oxidation of sulfur dioxide gas to form sulfur trioxide gas. A catalyst is used to increase the rate of production of sulfur trioxide gas.

All energy waves other than the visible light spectrum cannot be seen. true or false

Describe two important functions for carbon dioxide in the atmosphere.

In the chemical reaction: 2 h 2 (g) o2 (g) → 2 h2o (g), with 8 grams of h 2 (2 grams/mole) and 16 grams of o2 (32 grams/mole) and the reaction goes to completion, what is the excess reactant and how much of that would remain

What is the volume of a gold nugget that weighs 2.20 kg? The density of gold is 19.28 g/cc.