Question

what component of a chemical reaction is highlighted in red? 4fe(s) + 3o₂(g) → 2fe₂o₃(s) plus product yields subscripts

Explanation:

In a chemical - reaction equation, the '+' sign represents addition of reactants. Here, the red - highlighted '+' means 'plus'. Reactants are combined using the '+' sign in a chemical reaction equation.

Answer:

plus