Why is graphite used instead of gold or copper wires to conduct electricity in very hot situations such as an industrial kiln?

2 answers:

5 0

The strong bonds give graphite high boiling and melting points, while the weak bonds make graphite soft and flexible.

klemol [59]2 years ago

5 0

Graphite has strong bonds which gives it high boiling and melting points. With a high boiling point and melting points graphite can not melt easily, and thus is why it is preferred in hot situations such as an industrial kiln.

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How many hydrogen atoms are in each molecule of trisilylamine?

lord [1]

Answer:

9

Explanation:

The amine functional group is obtained by subsititution of one or more hydrogen atoms in the ammonia compound.

Ammonia is NH₃.

Then,

by substituting one hydrogen you obtain R - NH₂.

by substituting two hydrogens you obtain R' - NH - R''

by subsituting the three hydrogens you obtain:

R'''

R' - N - R''

In this case, the three subsitutuents are silyl groups. The silyl group is derived form silane and is SiH₃. So, the tcompound trisilylamine is:

SiH₃

SiH₃ - N - SiH₃

Thus, you can count 3 hydrogen atoms for every silylgroup for a total of 9 hydrogen atoms in each molecule of trisilylamine.

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