Question

1. what type of reaction is shown in the graph? how do you know? reactants energy (kj) energy given out to the surroundings δh products

Explanation:

Step1: Analyze energy change

The graph shows that the energy of the reactants is higher than the energy of the products, and energy ($\Delta H$) is given out to the surroundings.

Step2: Recall reaction - type definitions

In an exothermic reaction, heat is released to the surroundings, which means the energy of the reactants is greater than the energy of the products.

Answer:

The reaction is an exothermic reaction. We know this because the energy of the reactants is higher than the energy of the products, and energy is given out to the surroundings.