Question

Predict what will happen to reaction rates in the following scenarios and explain why!

1. You add more oxygen gas to rusting iron metal (Note: Iron + Oxygen- →rust). this reaction rate will...
2. You put a beaker of reacting nitric acid and sodium hydroxide into the refrigerator. This reaction rate will...​

Answer 1

Answer: check explanation my son

Explanation: 1. Adding more oxygen gas to rusting iron metal will increase the reaction rate. This is because oxygen is a reactant in the rusting reaction and by increasing the amount of oxygen, there will be more molecules available to collide and react with the iron metal, resulting in an increased rate of reaction.

2. Putting a beaker of reacting nitric acid and sodium hydroxide into the refrigerator will decrease the reaction rate. This is because the colder temperature will reduce the kinetic energy of the molecules, causing them to collide less frequently and slowing down the rate of reaction.

Answer 2

Adding more oxygen gas to rusting iron metal will increase the reaction rate. This is because the rate of the reaction depends on the concentration of the reactants. By adding more oxygen gas, the concentration of oxygen molecules will increase, which will result in more frequent collisions between iron and oxygen molecules. This, in turn, will increase the rate of the reaction and the formation of rust.

Putting a beaker of reacting nitric acid and sodium hydroxide into the refrigerator will decrease the reaction rate. This is because the rate of the reaction is dependent on temperature. Lowering the temperature will decrease the kinetic energy of the molecules, which will decrease the frequency of collisions between the nitric acid and sodium hydroxide molecules, leading to a slower reaction rate.