Draw structure Calcium carbide `(CaC_(2))`

Draw structure CaCN_(2)

Draw structure SiO_(2)

Draw structure (CN)_(2)

Draw structure C_(3)O_2

Draw the orbit structure Calcium oxide

Draw structure RbIO_(2)

Draw structure Cl_(2)O_(7)

underset("Calcium carbide")(CaC_(2))overset(H_(2)O)(to)(A)overset("Red hot Cu tube")(to)(B) , Product (B) of the reaction is:

How much heat will be required to make 2kg of calcium carbide (CaC_(2)) according to the following reaction? CaO(s) +3C(s) rarr CaC_(2)(s) +CO(g) The heats of formations of CaO(s), CaC_(2)(s) , and CO(g) are -151.0,-14.0 ,and -26.0 kcal , respectively.