Burning aluminum creates a white flame as the metal reacts with oxygen to produce aluminum oxide. How many moles of oxygen are needed to react with
7.5 moles of aluminum in the following reaction; 4 AI + 3 02 - 2 A1,0,?*

The drawing represents the movement of particles in a substance. what changes of state can this substance undergo

Which three statements represent the benefits of performing experiments using computer simulations?

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.