Question

If a synthesis reaction takes place between rubidium and bromine, the chemical formula for the product is _____.

a) RuBr
b) RbBr2
c) RbBr
d) Rb2Br

Answer 1

RbBr is your answer .-.

Answer 2

c) RbBr.

Step-by-step explanation:

Hello,

In this case, since rubidium is in group IA, one electron will be eligible to pair during a chemical reaction. In addition, as long as bromine is in group VIIA, when pairing with a metal, just one electron is eligible to pair as well. Now, based on the aforesaid facts, we infer that the undergoing chemical reaction will be:

`2Rb(s)+Br_2(g)-->2RbBr`

So the formed product is
`RbBr` which is rubidium bromide, that is the c) answer.

Best regards.