They both have two electron shells. Period indicates number of shells.
Answer:
The law of conservation of mass represents a balanced chemical equation.
d) T3 and T4. T3 and T4 are poorly soluble in water, and more than 99% of the T3 and T4 circulating in blood is bound to carrier proteins. The main carrier of thyroid hormones is thyroxine-binding globulin, a glycoprotein synthesized in the liver.
The appropriate answer is they decrease the potential energy difference between reactant and product. They do this by bringing products and reactants together at the active site on the enzyme molecule. Enzymes are biological catalysts. They increase the rate of a chemical reaction without being used up in the reaction itself. So one molecule of an enzyme is used many times to catalyze the reaction of other molecules.
Hi there! All of the water returns to the atmosphere, it's called evapotranspiration and condenses. And then the water falls back to the Earth's surface and starts the cycle all over again. If you don't know what I mean, it's the Water Cycle.
