Which tool would you measure how different colors absorb the energy in sunlight is it beaker or thermometer

A Beaker is better.

Explanation:

Sunlight radiation generates electromagnetic waves with different wave longs , when all the waves move together our eyes see white light but objects like a beaker made with glass can refract and separate the waves and show it in different colors.

A thermometer only measure temperature using a substance like Mercury, it changes its volumen with the increase or decrease of temperature and that change is shown in the instrument.

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.