CALCIUM: A REACTIVE AND STRENGTH ELEMENT.
Mariana Escobar
Introduction to chemistry I- with Lab
CHE 101-360
Dr. Rebbeca Hoenigman
April 19th 2018
Calcium, Ca.
Molar Mass
40.08
Chemical reaction: calcium with air:
2Ca(s) + O2(g) → 2CaO(s)
Chemical reaction: calcium with water:
Ca(s) + 2H2O(g) → Ca(OH)2(aq) + H2(g)
Calcium is a familiar element for most of the people at the moment of looking to a periodic table, including oxygen and hydrogen. Because its frequently related with bones and milk, which are, in fact rich in calcium. However, calcium has other interesting properties and functions (besides those already mentioned), as an alkaline earth metal, as cation, Ca+2, and as an important part of our biological make up. I will try to show in detail these amazing chemical properties about calcium. Calcium (Ca) belongs to the second group of the periodic table with Be, Mg, Sr, Ba and, Ra; which make it, an alkaline earth metal, a pretty reactive element when in contact with air and water. Calcium “ readily forms a white coating of calcium nitride (Ca3N2) in air at room temperature. It reacts with water and the metal burns in air with an orangered flame, forming largely the …show more content…
Plants require calcium for the health of their leaves; it is principally responsible for holding together the cell walls of plants. Living organisms need it for the proper function of the cell “where the movement of the calcium ion, Ca+2, into and out of the cytoplasm operates as a signal for many cellular processes”. (The Alkaline Earths as Metals, Chapter1, p14) Finally, Calcium is the major element present in all vertebrates, particularly in bones and teeth. In conclusion, calcium is an essential and require element for nature to work