2. Once you recognize that this is a single replacement problem, determine whether the non-bonded element is a cation or anion. Then determine which element it will replace. Remember cations can only replace cations and anions can only replace anions.
If you haven't eaten for several hours and your blood sugar level drops, another hormone from your pancreas called glucagon signals your liver to break down the stored glycogen and release glucose back into your bloodstream.
The human immunodeficiency virus (HIV), tuberculosis, viral hepatitis and typhoid fever are examples of infections that lower the lymphocyte count. A low lymphocyte or white blood cell count increases a person's risk of infection. The NHLBI advises people who have this condition to stay away from people who are sick, avoid foods that potentially are contaminated with bacteria and practice good oral hygiene.