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sergiy2304 [10]
3 years ago
7

How many grams of helium are equal to 15 moles of methane (CH4)?

Chemistry
1 answer:
Dennis_Churaev [7]3 years ago
5 0

Answer:

0.062334579609362

Explanation:

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Why is potassium nitrate classified as an electrolyte?.
ch4aika [34]

Answer: It is a molecular compound. (2) It contains a metal. (3) It can conduct electricity as a solid.

5 0
2 years ago
Identify whether each reaction represents a chemical reaction or a nuclear reaction by filling in the blank with the word ‘chemi
valkas [14]
A chemical reaction is defined as the reaction between two or more substances that produces new substances/compounds.

On the other hand, a nuclear reaction is a reaction that alters the nucleus of a certain atom. This can be done either by splitting the nucleus or by joining this nucleus with another one.

Reaction 1:
Cl₂ + H₂ ............> 2 HCl
This is the combination of two elements to produce a new compound.
Therefore, this reaction is a chemical reaction

Reaction 2:
²₁H + ³₁H .........> ⁴₂H + ¹₀n
This is an alteration in the nucleus of a hydrogen atom by bonding it with another nucleus.
Therefore, this reaction is a nuclear reaction

Hope this helps :)

5 0
3 years ago
Read 2 more answers
Chemistry
Aleks [24]

Answer:

A. High electrical conductivity

Explanation:

solid silver isn't brittle, it has a high melting point, and its not a good insulator.

4 0
3 years ago
Why does copper give off blue light and lithium give off red light?
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Because each element has an exactly defined line emission spectrum, scientists are able to identify them by the color of flame they produce.
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