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ch4aika [34]
3 years ago
9

Which of the following statements are true regarding SDSs and labels?(OSHA)

Chemistry
1 answer:
creativ13 [48]3 years ago
8 0

Answer:

particles larger than 5 microns are normally expelled. -particles smaller than 5 microns may enter into alveolar sacs. ... -chemical can penetrate skin and go into bloodstream.

Explanation:

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Aluminium and potassium nitrate will not react when mixed together?
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they would react to make aluminum oxide and nitrogen

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Is melting sugar a chemical or physical change? Please provide an explanation
liraira [26]

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Hola Amigo! Here's Ur Answer :D

Explanation:

The chemical reaction we are most familiar with is that of melting: sugar decomposes at a temperature ranging between 184 and 186°C. This is a very recent discovery we owe to a team of researchers in Illinois. Basically, when we heat sucrose gently, this produces a phenomenon known as “ apparent melting ”.

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3 years ago
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In the past mining companies were not made responsible for the clean-up of any of the mine sites. As a result, abandoned mines h
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Old and inefficient mining smokestacks contaminate the soils around abandoned mine sites.

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Old and inefficient smokestack do not contaminate the soil since they are very high towers that discharge gases directly into the atmosphere. Hence they are not part of the sources of soil contamination in abandoned mines.

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