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Burka [1]
2 years ago
7

7). Which material has the highest melting point? A. ammonia B. methane C. sodium chloride D. water .with explanation every opti

on​
Chemistry
1 answer:
Arte-miy333 [17]2 years ago
8 0

Answer:

sodium chloride

Explanation:

Because of the strong ionic bonds it possesses

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Match each alkane names and structures.
Scilla [17]

First structure is  CH₃-CH₃. It is an alkane with two carbon atoms hence it is called ethane.

Second structure is  CH₃-CH₂-CH₂-CH₃. It is an alkane with four carbon atoms hence it is called butane.

Third structure is CH₄. It is an alkane with one carbon atom hence it is called methane.

Fourth structure is CH₃-CH₂-CH₃. It is an alkane with three carbon atoms hence it is called propane.


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4 years ago
Which statement correctly compares an atom of an alkali metal with an atom of the alkaline earth metal next to it on the periodi
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The atom of alkaline earth metal has one more proton and one more electron than the alkali metal that is next to it to the left on the periodic table. Then the atomic number of the alkali metal is one unit less than the atomic number of the alkaline earth metal next to it

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4 years ago
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Why can scientist assume elastic collisions as long as the temperature remains constant?
Tema [17]

Answer:

Because in elastic collisions there is no heat emission or absorption.

Explanation:

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8 0
4 years ago
How long would it take a current of 10A to deposit 6.36g of copper during the electrolysis of copper (ll) tetraoxosulphate VI so
zhuklara [117]

It take 0.54 hours to deposit 6.36g of copper

<h3>Further explanation</h3>

Faraday's Law I

"The mass of the substance formed at each electrode is proportional to the electric current flowing in the electrolysis

W = e.i.t / 96500

\tt \large {\boxed {\bold {W \: = \: \dfrac {e \times  i \: x \: t} {96500}}}}

e = equivalent = Ar / valence

i = current, A

t = time, s

W=6.36 g

e = 63.5 : 2 =31.75

i = 10 A

\tt t=\dfrac{W\times 96500}{e.i}\\\\t=\dfrac{6.36\times 96500}{31.75\times 10 }\\\\t=1933.04~s\approx 0.54~hours

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3 years ago
Can someone help me please I would really appreciated
harina [27]

Explanation:

whats the question. cause I didn't see it

3 0
3 years ago
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