One mole of an element contains which of the following?

A. 6.02 atoms

B. 6.02 x 1023 atoms

C. 6.02 x 1023 grams

D. 12 atoms

In two or more complete sentences describe all of van der waals forces that exist between molecules of hydrogen sulfide H2S

What is the energy of an electron in the hydrogen atom determined by?

Be sure to answer all parts. For each reaction, find the value of ΔSo. Report the value with the appropriate sign.

What do lactate dehydrogenase, aspartate aminotransfcrase, and creatine kinase all have in common? a. they all are allosteric enzymes b. they are all zymogens c, they are all used to diagnose medical conditions d.

Explain why the energy passing from a row of toppling dominoes is like the energy passing through an ecosystem.

Explain in terms of electrons why the bonding in NaCl is ionic. 2Na (s) + Cl2 (g) - >2NaCl (s)

A 20% solution of KCl has a mass of 400 g what mass of KCl is contained in this solution

A fire extinguisher is labeled b-i. what type of fire will be put out by this extinguisher?

The capacity of an eye dropper would be a few a kilometers be leiters C deciliters d milliluters

2C 2 H 6 + 7O 2 * **>4CO 2 + 6H 2 O if 7.0 g of C 2 H 6 react with 18 g of O 2, how many grams of water will be produced