How many atoms and elements in the problem bellow 10 Mg(OH)2 ( 3.08 < so i keep track of which assignment this question belongs to )

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?