A balanced the reaction of lead with hydrochloric acid:
Pb(aq) + 2HLC (l) → PbCl2(aq) + H2(g)
A) a gas mixture
B) a gas
Explanation:
Immunoglobulin M is the first antibody produced on initial exposure to an antigen. It is also known as IgM.
It occurs as a primary response to the antigens against a particular baterium or virus. It is pentavalent in nature and has ten binding sites for antigens.
Therefore, it is concluded that when the body identifies a bacterium or a virus, it releases the antibody IgM.
