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Anit [1.1K]
2 years ago
15

WHAT IS THE BORON ATOM?

Chemistry
2 answers:
AlexFokin [52]2 years ago
8 0
Boron is a chemical element with the symbol B and atomic number 5. ... Several allotropes of boron exist: amorphous boron is a brown powder; crystalline boron is silvery to black, extremely hard (about 9.5 on the Mohs scale), and a poor electrical conductor at room temperature.
leonid [27]2 years ago
3 0

Answer: Boron is a chemical element with the symbol B and atomic number 5.

Explanation: Hope this helps :) PLz mark me!!!

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How many moles are in 272 grams of hydrogen peroxide (H2O2) ?
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Answer:

8 moles

Explanation:

When we are asked to convert from grams of a substance into moles, we have to use the substance's molar mass.

Meaning that for this problem, we'll <em>use the molar mass of hydrogen peroxide</em> (H₂O₂), as follows:

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There are 8 moles in 272 grams of hydrogen peroxide.

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