Evidence of a chemical change includes a) change in size. b) change in color. c) change in shape. d) change in weight. evidence of a chemical change includes a) change in size. b) change in color. c) change in shape. d) change in weight.

The answer is actually B) change in color

Explanation:

Here's why: A chemical change changes the substance. Evidence of a chemical change include evolving gas and changes in color or temperature

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.

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a