What is continental crust made out of

What chemicals make up the sides or backbone of the dna molecule

The bottom number on each element of a on the periodic table is called

How does a catalyst affect the activation energy of a chemical reaction?

Why do the compounds hexane, hexanol, and hexene have such similar names?

What are the three signs that a chemical change has taken place

Where are the transition metals on the periodic table? A. In two rows, separated from the rest of the table B. In the second column C. In the first column D. In columns 3 - 12 in the center of the table

A spherical ball of lead has a diameter of 2.5 cm. What is the mass of the sphere if lead has a density of 11.34 g/cm3? (The volume of a sphere is (43) πr3 where r is the radius.)

If a clot were made up of a mass of proteins, what change in the proteins led to the formation of a clot?

How many types of eggs can mothers create

If a piece of metal, such as calcium or magnesium, reacts with atmospheric oxygen, would you expect the product to have a greater or lesser mass than the reacting metal?