Directions: Use the words in the bank to fill in the blanks in the reading. Use each word only once. Word Bank: Temperature Mantle Crust Outer Core Magma Solid Pressure Liquid Metal
There are four layers in the Earth. The is the top layer. It is made out of rock. This is where we live and the where the oceans are. It is very thin. The next layer is much thicker and called the . It is made out of melted rock, also called , that is moving at all times. The next layer of the Earth is called the . It is made out of very dense, super hot, melted . It is so hot that it is no longer solid but . The very center of the Earth is called the Inner Core. Both and increase the deeper you through the Earth: the crust is the coolest and the core is under high temperatures and pressure.

These questions are based on the attached photo. the experiment is about burning magnesium metal with oxygen. 1. write the balanced chemical equation for the reaction you are performing. 2. calculate the mass of magnesium metal used in each trial. o trial 1: o trial 2: 3. calculate the actual yield of magnesium oxide for each trial. o trial 1: o trial 2: 4. magnesium is the limiting reactant in this experiment. calculate the theoretical yield of mgo for each trial. o trial 1: o trial 2: 5. determine the percent yield of mgo for your experiment for each trial. o trial 1: o trial 2: 6. determine the average percent yield of mgo for the two trials. your company currently uses a process with a similar cost of materials that has an average percent yield of 91 percent. if the average percent yield of this process is higher than that, this could save the company money. what is your recommendation to the company? support your recommendation using your data, calculations, and understanding of stoichiometry gathered from this lab.