Chemistry in our world

Chemistry literally affects us twenty four hours a day. At any one moment in our bodies, thousands of chemical reactions are occurring. All of these reactions are controlled by catalyst-like chemicals called enzymes. Most of the chemical digestion of food we eat gets done in our small intestines with enzymes. Outside our bodies, chemicals and their reactions help us in many practical ways. Composites are mixtures of two or more substances, many of which are polymers with different properties, combine to give us better products. Read More...