Question

What is the chemical equation for Calcium + Phosphorus gives Calcium phosphide?

Answer 1

Hint: We have to know that the calcium phosphide (CP) is the inorganic compound with the formula $$C{a}_3{P}_2$$. It is one of several phosphides of calcium, being described as the salt-like material composed of $$C{a}^{2+}$$ and $$P^{3-}$$. $C{a}_3{P}_2$ has the appearance of red-brown crystalline powder or grey lumps.

Complete answer:
We will proceed this question like this:
Calcium reacts with Phosphorus to produce Calcium Phosphide is an ionic synthesis reaction. Calcium has a charge of $$C{a}^{2+}$$ Phosphorus has a charge of $$P^{3-}$$.To bond these two ions together, their charges must be equal and opposite. Therefore we need 3 $$C{a}^{2+}$$ ions to balance with 2 $$P^{3-}$$ in order to balance their charges at 6 for the molecule $$C{a}_3{P}_2$$.
$$3Ca+2P\to C{a}_3{P}_2$$
The amount of phosphate in the blood affects the level of calcium in the blood.  Calcium and  phosphate in the body react in opposite ways: as blood calcium levels rise, phosphate levels fall. A hormone called parathyroid hormone (PTH) regulates the levels of calcium and phosphorus in your blood. Calcium phosphates occur abundantly in nature in several forms and are the principal minerals for the production of phosphate fertilizers and for a range of phosphorus compounds. Calcium phosphide is also used in fireworks, torpedoes, self-igniting naval pyrotechnic flares, and various water activated ammunition.

Note:
As we know that the calcium phosphide has an IUPAC name which is known as Tricalcium diphosphide. Red-brown color of calcium phosphide melts under excessive pressure of phosphorus. It decomposes slowly in moist air, and quickly when calculating. It is hydrolyzed by water, decomposed with dilute acids.