Lab: Types of Reactions

Question 1

Which of these ideas did you include in your answer? Check all that apply.

Revolt · Accepted Answer

Reaction 2 has a lower reaction rate than Reaction 1.

Question 2

Acid rain is a dilute solution of acids that dissolve the calcium carbonate in limestone statues. Concentrated acids can dissolve a large piece of limestone in a few days. Statue breakdown due to acid rain can take decades, but statues with intricate carvings break down more quickly. Explain these observations in terms of reaction rates.

Revolt · Accepted Answer

The reaction rate determines how quickly the limestone statue dissolves. Acid rain is a dilute solution, and a lower concentration of reactants results in a slower reaction rate, which is why it takes decades to break down. Conversely, concentrated acids react much faster. Additionally, statues with intricate carvings have a greater surface area exposed to the acid. An increased surface area allows for more collisions between the acid and the calcium carbonate, which increases the reaction rate and causes these statues to break down more quickly.

Question 3

Which of these ideas did you include in your answer? Check all that apply.

Revolt · Accepted Answer

The time taken for the statue to break down depends on the reaction rate.; The low concentration of acids in acid rain reduces the reaction rate and increases the time required to break down the statue.; Intricate carvings increase the surface area of the statue and therefore increase the rate of the statue’s breakdown.

Question 4

The synthesis of water proceeds according to this equation:2H2(g) + O2(g) 2H2O(g)How can the rate of this reaction be increased?

Revolt · Accepted Answer

by increasing the temperature of the reactants

Lab: Types of Reactions Answers

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