3 years ago

A chemical reaction in which two or more elements switch places is called?

Chemistry

1 answer:

Nina [5.8K]3 years ago

8 0

Answer:

neutralization

Explanation:

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Automobile bodies contain significant amounts of iron. The iron is protected by the addition of zinc. This is called galvanizati

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Oxidation half reaction: $Zn\rightarrow Zn^{2+}+2e^-$

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Which of the following sets of quantum numbers is NOT allowed? a. n = 5, l= 4, ml= –2, ms = +1/2 b. n = 2, l = 1, ml= 0, ms = +1

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Answer:

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the n value must always be greater than the l value

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3) In the Hydrolysis of Disaccharides and Polysaccharides portion of the lab, starch should give one positive iodine test and on

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Answer: potassium iodide is the basic test for starch,and the positive test is blue-black coloration, any other test substance which is not starch will give a negative results.

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Starch is an example of polysaccharide and since the standard test for it is potassium iodide solution, it gives a positive test.

Diasaccharides e.g maltose are reducing sugars.their standard test is BENEDICT test .

Therefore, in the hydrolysis; starch should give a positve test, while Diasaccharides should give negative rest.

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