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you test a substance using

A student is doing tests on an unknown powder to try to determine the content of the substance. They decide to start with
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2. asked by quandale dingle
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Roshni, a forensic scientist, has ruled out several different drugs when testing a substance found in a car. She suspects that
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2. 307 views
you test a substance using red litmus paper and the paper turns blue. based on theses results, is the substance acidic or basic?
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2. asked by Wolfie_Chan
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Which statement below correctly pairs the indicator test with the substance that it detects?(1 point)Responses Iodine will
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2. asked by quandale dingle
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a student is performing a Benedict test on an unknown substance. The student adds the Reagent and nothing happens which
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2. asked by hi √
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Question: A substance has a vapor pressure of 50 mmHg at the melting point (100C). Describe how you would experimentally sublime
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2. asked by Sheryl
3. 2,133 views
A student is preforming the Benedict's test on an unknown substance.the student adds a reagent(the chemical required to make the
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2. asked by Rea
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Suppose 1.0 mol of substance A reacts with 1.0 mol of substance B. to produce 2.0 mol of substance C. In a reaction, 2.4 mol of
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2. asked by Andrew
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Among companies doing highway or bridge construction, 80% test employees for substance abuse. A study involves the random
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2. asked by Chanel
3. 619 views
A student is performing a Benedict’s test on an unknown substance. He adds the reagent (the chemical required to make a color
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2. asked by Yana
3. 21 views