How do experiments help scientists learn about the world? A. Experiments explain scientific theories.
B. Experiments prove the scientists' hypotheses.
C. Experiments test the scientists' ideas.
D. Experiments correct old ideas.

A. Experiment help explain scientific theories

C. Experiments test the scientists' ideas.

Explanation:

let that person have a turn to speak : )

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.