I think its the sea cucumber and sea urchin
but it could be the star too
We will not be able to tell the genotype of the purple parent as it can either be a homo_zygous dominant or hetero_zygous. Without the complete genotype of the offspring, we would not be able to tell.
The alkali metals are first column, alkali earth 2nd, halogens 2nd to last, and noble gases last. Hope it helps!
Q=mCdeltaT
Q=(640)(0.09)(375-26)
Q=20102.4J
Answer
NaF
Sodium fluoride