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zhuklara [117]
2 years ago
14

Scientists use critical thinking skills throughout the process of research or experimentation. A student notices that their ener

gy level always seems to decrease when they drink soda, but they seem to have more energy when they don’t drink soda. The student decides to conduct an experiment to determine if their soda intake really does have an effect on their energy level. What critical thinking step has the student just completed in the situation described above?
Chemistry
1 answer:
Delvig [45]2 years ago
7 0
The critical thinking step that the student just completed in the situation above is that OF ASKING QUESTION.
Critical thinking refers to the objective analysis of an issue that is undertaken in order to reach a conclusion on a matter. Critical thinking involves asking questions and asking questions make one to discover new things or new phenomenon.
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A sample of gas at 1.10 atm has a volume of 326 mL. What is the new volume if the pressure is changed to 1.90 atm?
Brut [27]

Answer

For this we use ideal gas equation which is:

P1V1 = P2V2

P1 = 1.10 atm

V1 = 326 ml

P2 = 1.90

V2 = ?

By rearranging the ideal gas equation:

V2 =  P1V1 ÷ P2

V2 = 1.10 × 326 ÷1.90

V2 = 358.6 ÷ 1.90

V2 = 188.7 ml

8 0
3 years ago
How are the conditions at which phases are in equilibrium represented on a phase diagram?
insens350 [35]

How are the conditions at which phases are in equilibrium represented on a phase diagram?

Image result for How are the conditions at which phases are in equilibrium represented on a phase diagram?

Along the line between liquid and solid, the melting temperatures for different pressures can be found. The junction of the three curves, called the triple point, represents the unique conditions under which all three phases exist in equilibrium together. Phase diagrams are specific for each substance and mixture.

7 0
2 years ago
14. A cinder cone is the simplest type of volcano.<br> a. True<br> b. False
dusya [7]

Answer:

True

Explanation:

They are built from particles and blobs of congealed lava ejected from a single vent. As the gas-charged lava is blown violently into the air, it breaks into small fragments that solidify and fall as cinders around the vent to form a circular or oval cone, making them the simplest out there

7 0
3 years ago
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A substance with a high pOH would likely have which of the following?
Anna [14]

Answer: a low OH^-  and low pH.

Explanation:

pH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration.

pH=-\log [H^+]

pOH=-log[OH^-]

pOH=log\frac {1}{OH^-}

Thus as pOH and OH^- are inversely related, a solution having higher pOH will have less amount of OH^- concentration. And a solution having more pOH will have less pH.

Thus a substance with a high pOH would likely have low OH^- concentration and low pH.

8 0
2 years ago
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What is the similarity between pure substances and mixtures?
Firlakuza [10]
Mixtures are made up of 2 or more pure substances. pure substance is just its self and a mixture is multiple substances.
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2 years ago
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