24-karat gold is considered to be pure gold. 18-karat gold is considered to be about 75% gold. What is 18-karat gold considered a mixture rather than a pure substance?

How many grams of F - must be added to a cylindrical water reservoir having a diameter of 2.02 * 102 m and a depth of 87.32 m?

All matter is made up of atoms that are in continuous, random motion

A sample of diborane gas a substance that bursts into flame when exposed to air, has a pressure of 345 tore at a temperature of - 15C and a volume of 3.48 L.

What is the energy of a battery?

If two solutions are mixed they will always undergo a chemical reaction and form a precipitate. Explain

An aqueous solution is made from a molecular compound rather than from an ionic compound. If some ions are present in solution, which best describes the solute? A. a weak electrolyte B. a nonelectrolyte C. a strong electrolyte D.

Which of the following measures the radiation given off by atoms per second?

What is the name of the outermost layer that forms a boundary around the outside of each cell

What does an ionic compound form?

How many electrons in an atom could have these sets of quantum numbers n=7 l=3 ml=-1?