Question

Give the name and formula of the compound formed from each pair of elements: (a) 37q and 35r (b) 8q and 13r (c) 20q and 53r

Answer 1

(a)
`RbBr` - rubidium bromide.

(b)
`Al_2O_3` - aluminium oxide.

(c)
`CaI_2` - calcium iodide.

Step-by-step explanation:

Hello,

(a) In this case, the elements having 37 and 35 as the oxidation states are rubidium and bromine respectively, in such a way the formed compound, due their gatherable oxidation states (+1 and -1 respectively) is the following binary salt:

`RbBr` - rubidium bromide.

(b) In this case, the elements having 8 and 13 as the oxidation states are aluminium and oxygen respectively, in such a way the formed compound, due their gatherable oxidation states (+3 and -2 respectively) is the following basic oxide:

`Al_2O_3` - aluminium oxide.

(c) In this case, the elements having 20 and 53 as the oxidation states are calcium and iodine respectively, in such a way the formed compound, due their gatherable oxidation states (+2 and -1 respectively) is the following binary salt:

`CaI_2` - Calcium iodide.

Best regards.

Answer 2

(a) 37Q = 37Rb(Rubidium)
35R = 35Br(Bromine)
Formula of the compound is : RbBr(Rubidium Bromide)

(b) 8Q = 8O(Oxygen)
13R = 13Al(Aluminum)
Formula of the compound is : Al2O3(Aluminum Oxide)

(c)20Q = 20Ca(Calcium)
53R = 53I(Iodine)
Formula of the compound is : CaI2(Calcium Iodide)