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Julli [10]
3 years ago
7

pH is an indicator of how acidic or basic a substance is. The pH scale ranges from 0 - 14, with 7 representing neutral. Acids ha

ve a pH below 7; bases, a pH greater than 7. Scientists determine the pH of a substance by using an indicator; indicators change color depending on the pH of a substance. Different indicators work at different pH ranges, as seen in the table above. The transition range of an indicator is the range of pH when the indicator changes from its low-pH color to its high-pH color. If the indicator shows a color between the two, then the pH lies somewhere in that transition range. Student groups are given an unknown liquid to test using the four indicators. One group conducts the tests and records these results. Color Changes - pH Indicators Indicator Used Color Produced Methyl violet Bluish Bromophenol blue Yellow Phenolphthalein Colorless Thymolphthalein Colorless Compare the table of indicator values with the student data. Select ALL the statements that apply to the liquid tested.
Physics
1 answer:
Mila [183]3 years ago
8 0
B I KNOW CAUSE IVE JUST TOOKEN THE TEST
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Anna [14]

Answer:

Find the letter below.

Explanation:

                                                                                1237 Richmond Avenue,

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                                                                                3rd May, 2021.

The Principal,

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U.S.A.

Dear Sir,

           APPRECIATION FOR THE ADMISSION OFFER IN YOUR SCHOOL

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         This programme will also afford me the opportunity to relate with seasoned professionals in the field of Information Technology. When in contact with these professionals, I hope to ask them several questions on programming, the technicalities involved in it, and what is obtainable in the real-world scenario. Armed with these pieces of information, I believe that the programme will shape me to be an excellent professional that will be useful to the society.

         Once again, thank you for this very special opportunity. I hope to fully maximize the privilege.

Yours Sincerely,

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5 0
3 years ago
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Naddika [18.5K]

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The answer is A. Synthetic

Explanation:

Synthetic materials are made by mankind, or in other words, human-made.

4 0
3 years ago
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Elanso [62]
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4 0
3 years ago
Which of the following electromagnetic waves carries the highest
Harman [31]

<u>Complete Question:</u>

Which of the following electromagnetic waves carries the highest  energy, and are most damaging to human?

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<u>Correct Option:</u>

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<u>Option: A</u>

<u>Explanation:</u>

The waves of light and other forms of energy that radiate or travel from where they are originated is understood as electromagnetic radiation, and collectively represent electromagnetic spectrum. The gamma rays are dangerous sources of radiation with high energy. Its standard size is 0.000001 nm i.e. size of atomic nucleus diameter. It results from the degradation of atomic nuclei by radioactive means. It is made up of the smallest electromagnetic wavelength, and thus provides the highest photon energy.

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8 0
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