What does molarity measure the concentration of? a. how many isotopes of an element there are b. the number of grams in a molar mass unit c. the relative amounts of atoms in a molecule d. the amount of a substance dissolved in a liquid

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.

Light waves are as they pass through the

What relationship exists between an enzyme and a catalyst?