Crystallization
This is a technique commonly done by chemists to purify compounds. During crystallization, an impure,solid compound is dissolved with a hot solvent. In the container the impurities and the needed compound move freely. When the solution cools down, the solvent can cannot hold all the solutes. Each solute will form a crystal. Therefore each crystal is made of only one molecule. Once it cools down if will be placed in a cold bath to complete the crystallization.
Answer:
My guess would be option A.
Explanation:
Antibiotics work on bacterial infections. These chemicals kill the bacteria cells but do not affect cells that make up the body. For example, many antibiotics interrupt machinery inside bacterial cells that builds the cell wall.
Exosphere is the lowest because the higher you go the lower the air pressure the lower you go the higher the air pressure. ;) :)
Answer: Earth is rotating while the moon spinning around it. It takes 24hrs to make a full rotation or a full day.
I just took the test and the answer is: a Moderate Slope. Hopefully this isn't too late. God Bless and have a great day!
