A3) During the electrolysis of water, what two substances are formed at the interface of the

cathode in an electrolytic cell?

•oxygen

•water

•hydrogen gas

•hydrogen ions

•electricity

Are phosphorous and oxygen covalently or ionically bonded?

How many atoms are in 5.5 moles

1. An inflated balloon on a balance can prove that air has

Which expression represents a reaction rate?

Write a balanced equation (including physical states) for the following reaction: Glucose, a sugar, C6H12O6, is oxidized in the body to produce water and carbon dioxide.

Copper (cu) is a transition element used in the making of coins. calculate the mass in grams of 0.0420

In 1864, the Solvay process was developed to make soda ash. One step in the process is represented by the balanced equation below.

A chemist must prepare of aqueous potassium permanganate working solution. He'll do this by pouring out some aqueous potassium permanganate stock solution into a graduated cylinder and diluting it with distilled water.

What is the best name for the molecule below? a compound with 10 total carbons with a double bond and the rest single bonds.

What Word means the gradual change and build up of organisms in an enviroment