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Almost certainly the ones on the left side of the arrow (or on the bottom of the equilibrium constant expression). However, since you neglected to supply "this chemical reaction", we can't give you a better answer than that.
What else can I help you with?
What substances do you have at the beginning of a chemical reaction?
The substances you have at the beginning of a chemical reaction are the reactants or the reagents.
What are the reactant of a reaction?
Reactants are the starting materials of a reaction. Reactants combine to form the products.
What are substance you start with in a chemical reaction called?
The reactants
Why are reactants important in a chemical reaction?
Reactants are added into the equation to form the chemical reaction. Reactants are substances that are changed into products. Without these reactants, there would be no formula, resulting in no product.
In the reaction A+B ➝ C+D, what are the reactants?
The reactants in the reaction are A and B.
What are the starting materials in a chemical reaction-?
Reactants
What are some characteristics of reactants?
Reactants are the substances present at the beginning of a chemical reaction. They are consumed during the reaction to yield products. Reactants typically undergo a transformation in their chemical structure or properties during the reaction.
What are the substances that are present before a chemical reaction starts?
The reactants exist before a reaction begins, and also the products are the result of the reaction of the reactants.
What are the materials you have at the beginning of a chemical reaction called?
The starting materials in a chemical reaction are called reactants.
What are the reactants and products of the forward reaction?
The reactants are on the left side of the equation, and the products are on the right side of the equation. The reactants are used up in a chemical reaction, and the products are the substances made by the reaction.
In the reaction A plus B - and C plus D what are the reactants?
A and B
What is the difference between a heterogeneous reaction and a homogeneous reaction?
In homogenous reaction all the components/reactants taking part in the reaction form one single phase, with the reaction occurring in the bulk of this system. In heterogeneous reaction all the components/reactants taking part in the reaction are in different phases, with the reaction occurring between the delimiting surface of the components/reactants.
