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Serhud [2]
2 years ago
12

Which step in an investigation involves predicting the results?

Chemistry
1 answer:
Firdavs [7]2 years ago
5 0

Forming a hypothesis

Explanation:

The step in an investigation which involves the prediction of results is the stage of forming of a hypothesis.

  • A hypothesis is a stage in scientific investigation that follows shortly after asking a simple scientific question.
  • Hypothesis is simply a scientific guess that is logical in nature.
  • It presents a problem in a manner in which the problem is stated, the cause and the likely outcome can be predicted.
  • After a hypothesis formulation, the experiment is conducted and results of findings weighed against the predictions of the statement.

learn more:

Hypothesis brainly.com/question/3418951

#learnwithBrainly

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I believe the answer is D. The atmosphere, different layers of the atmosphere can help in different ways! The stratosphere helps protect us from the sun's rays; The Mesophere is what helps protect us from meteorites! It's so cold that they burn up in that area.
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Nastasia [14]

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The temperature is -14°C the air pressure in an automobile tire is 149K PA if the volume does not change what is the pressure af
Jet001 [13]

Answer: The pressure after the tire is heated to 17.3°C is 167 kPa

Explanation:

To calculate the final temperature of the system, we use the equation given by Gay-Lussac Law. This law states that pressure of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

\frac{P_1}{T_1}=\frac{P_2}{T_2}

where,

P_1\text{ and }T_1 are the initial pressure and temperature of the gas.

P_2\text{ and }T_2 are the final pressure and temperature of the gas.

We are given:

P_1=149kPa\\T_1=-14^0C=(273-14)=259K\\P_2=?=27.5psi\\T_2=17.3^0C=(273+17.3)=290.3K

Putting values in above equation, we get:

\frac{149}{259}=\frac{P_2}{290.3}\\\\P_2=167kPa

Hence, the pressure after the tire is heated to 17.3°C is 167 kPa

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