Copper can be mixed with other metals to form alloys, such as bronze (copper and tin) and brass (copper and zinc). Oxidized copper, or copper that has been exposed to air, develops a green coating or âpatinaâ that can be seen on old copper pennies, the Statue of Liberty, and copper roofs.
hepatitis b is an infectious hepatitis caused by the hepatitis b virus hbv this infection has two possible phases 1 acute and 2 chronic acute hepatitis b refers to newly acquired infections affected individuals notice symptoms approximately 1 to 4 months after exposure to the virusepatitis b is an infectious hepatitis caused by the hepatitis b virus hbv this infection has two possible phases 1 acute and 2 chronic acute hepatitis b refers to newly acquired infections affected individuals notice symptoms approximately 1 to 4 months after exposure to the virus
Hepatitis B is a contagious liver disease caused by the hepatitis B virus. It can cause either acute or chronic illness.Acute hepatitis B is a newly acquired infection that causes illness within six months or less of exposure to the hepatitis B virus.Chronic hepatitis B results from the hepatitis B virus remaining in the body for six months or more.eath from chronic liver disease or liver cancer occurs in 15-25% of chronically infected people. How lon g is a person able to spread hepatitis B? Hepatitis B is present before symptoms appear and while symptoms are present. Persons with the hepatitis B virus in their blood can spread hepatitis B to others.