Which of the following does not describe elements?

A. They are uniform throughout.

B. They can be separated by a chemical reaction.

C. They cannot be separated by physical means.

D. They are listed on the periodic table.

What structural feature of lecithin allows it to behave like an emulsifying agent?

Which of these forms due to the force of compression?

Which is not a characteristic of most nonmetals? Their atoms lose electrons when bonding with metal atoms. Their atoms gain electrons when bonding with metal atoms. Their atoms share electrons with other nonmetal atoms.

Bond length is the distance between the centers of two bonded atoms. On the potential energy curve, the bond length is the internuclear distance between the two atoms when the potential energy of the system reaches its lowest value.

In the laboratory you dilute 2.49 ml of a concentrated 6.00 m hydrochloric acid solution to a total volume of 50.0 ml. what is the concentration of the dilute solution?

How are the terms group and period used on the periodic table

Enter a balanced chemical equation for the reaction between aluminum metal and liquid bromine.

What does DNA instructions for making what

Which of the following substances act as a catalyst in the body? A) carbohydrates B) nuclear Acids C) Lipids D) enzymes

How many carbons are in a molecule of hexane?