B. Use the words inside the box to complete the chart below​

An exothermic reaction is conducted in an insulated calorimeter filled with water. the calorimeter is then sealed so that there is no heat exchanged between the contents of the container and the surrounding air. which of the following statements is true about the reaction?

Can someone me with questions 15 to 17 plz.

Why does his teacher ask him to balance the equation by including the correct coefficient