Omar observes that many buildings in his city were built using limestone. He has read that acid rain can damage limestone and knows that limestone reacts with acids. Considering that chemical reactions are affected by temperature, he conducts an investigation to see how the amount of damage to the limestone is affected by the amount of acid on the stone.

Question

20-07-2024
Physics

College

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Omar observes that many buildings in his city were built using limestone. He has read that acid rain can damage limestone and knows that limestone reacts with acids. Considering that chemical reactions are affected by temperature, he conducts an investigation to see how the amount of damage to the limestone is affected by the amount of acid on the stone.

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anuradhaborua anuradhaborua · Answer 1 · 2024-06-26T04:18:25-04:00

In Omar's experiment about limestone and acid rain, the correct plan is to control temperature, type of limestone, and type of acid, and vary the amount of acid and the amount of resultant damage. hence, option b is correct.

Omar's investigation is a classic case of analyzing the independent and dependent variables in an experiment. Here, the correct plan for his investigation is option B, where temperature, the type of limestone, and the type of acid are constants or controlled variables. On the other hand, the amount of acid applied to the limestone and the amount of damage that occurs as a result are variables that change and are measured during the experiment. In other words, Omar will change the amount of acid (independent variable) and then measure the resulting damage (dependent variable) while keeping all other factors constant.

Learn more about Chemistry experiment variables here:

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The probable question may be:

Omar observes that many buildings in his city were built using limestone. He has read that acid rain can damage limestone. He also knows that limestone reacts with acids and that chemical reactions are affected by temperature. With this in mind, he conducts an investigation to see how the amount of damage to the limestone is affected by the amount of acid on the stone. Which statement describes the correct plan for his procedure?

a. The temperature, the amount of damage to the limestone, and the type of acid are controls. The amount of acid and the type of limestone are variables.

b. The temperature, the type of limestone, and the type of acid are controls. The amount of acid and the amount of damage to the limestone are variables.

c. The amount of acid, the type of limestone, and the type of acid are controls. The temperature and the amount of damage to the limestone are variables.

d. The temperature, the amount of acid, and the amount of damage to the limestone are controls. The type of limestone and the type of acid are variables.