Which process in the water cycle do plants perform?

Answers

Answer 1

Answer: The answer to this question is photosynthesis.

Answer 2

Answer: The anwser is photosynthesis. Hope I helped..

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Which process is most responsible for the formation of the grand canyon???? A) scouring by continental glaciers
B) erosion by wind and water
C) eruptions by explosive volcanoes
D) cracking of earths crust by earthquakes

Answers

B) erosion by wind and water

Which value is most likely to be the pH of a salt that is formed by the reaction of a strong acid and a weak base?2.0
7.0
8.0
10.0

Answers

Answer: 2.0 (acidic solution)

Explanation: When a salt is formed by the reaction of strong acid and a weak base , it will be acidic in nature and thereby its pH will be less than 7.

In the process, conjugate acid will be formed which will react with water to give the hydronium ion (H_{_{3}}O ^{+})

Thus as the positive ion species is increasing, it will make the solution acidic in nature.

The pH value of a salt that is formed by the reaction of a strong acid and a weak base is: 2.0 (acidic solution)

Meaning of pH Value

pH value is a value on the pH scale that tells us how acidic or basic a solution can be.

When a salt is formed by the reaction of strong acid and a weak base , it will be acidic in nature and thereby its pH will be less than 7.

In conclusion, The pH value of a salt that is formed by the reaction of a strong acid and a weak base is: 2.0 (acidic solution)

Learn more about pH Value: brainly.com/question/1810086

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A _____ change occurs when a substance changes phase.
physical
chemical
nuclear

Answers

A physical change occurs when a substance changes phase.

For example, boiling pure water (H₂O) is physical change of substance (from liquid to gaseous state). In physical change, the bonds between oxygen and hydrogen can not be separated.

Sublimation of iodine (from solid to gas state) is also physical change.

Physical property can be observed and measured without any changes in molecular composition. The same substance is present before and after the change.

Final answer:

A physical change occurs when a substance changes phase. In this process, a substance may change from one state of matter to another but its foundational substance remains the same.

Explanation:

A physical change takes place when a substance alters its phase. This means that it shifts from one state of matter (solid, liquid, gas) to another. It's crucial to remember that although the physical characteristics of the substance may change, its substance does not. Let's take an example of water, it can exist as solid (ice), liquid (water), and gas (steam) but in all these states it remains H2O. Therefore, when a substance changes phase, it undergoes a physical change, not a chemical or a nuclear change.