The correct answer of the given question above would be option B. IRON 0.449. Based on the given details above about an unknown substance that has a mass of 14.7 g and the substance absorbs 1.323×102 J of heat, the temperature of the substance is raised from 25.0 ∘C to45.0 ∘C, most likely, the substance is IRON. Hope this answers the question.
beryllium & calcium are the two in the same column or family
Answer : The specific heat of the metal is, 
Explanation :
In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.
where,
= specific heat of metal = ?
= specific heat of water = 
= mass of metal = 50.0 g
= mass of water = 125 g
= final temperature of mixture = 
= initial temperature of metal = 
= initial temperature of water = 
Now put all the given values in the above formula, we get
![(50.0g)\times c_1\times (29.3-115.0)^oC=-[(125g)\times 4.18J/g^oC\times (29.3-25.6)^oC]](https://tex.z-dn.net/?f=%2850.0g%29%5Ctimes%20c_1%5Ctimes%20%2829.3-115.0%29%5EoC%3D-%5B%28125g%29%5Ctimes%204.18J%2Fg%5EoC%5Ctimes%20%2829.3-25.6%29%5EoC%5D)
Therefore, the specific heat of the metal is,
B) Series, because parallel is split into two making two loops for a current to flow.
