Which of the following is true for all chemical reactions? . a) the total mass of the reactants increase. b) the total mass of the products is greater than the total mass of the reactants. c) the total mass of the products is less than the total mass of the reactants. d) the total mass of the reactants equals the total mass of the products

Option (d) is the correct answer.

Explanation:

A chemical reaction is a reaction which bring changes in the chemical composition of a substance.

For example,

Mass of Na = 23

Mass of Cl = 35

Hence, total mass of reactants = g/mol

                                                    = 46 + 70 = 116 g/mol

Total mass of products = g/mol

                                       = g/mol = 116 g/mol

So, we can see that formation of new bonds take place in a chemical reaction and no change in the mass of reactants or products occur.

Also, according to the law of conservation of mass, the mass of reactants equals the mass of products in a chemical reaction.

Thus, we can conclude that out of the given options, this is true for all chemical reactions that the total mass of the reactants equals the total mass of the products.

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).