3 years ago

Answer these to get 75 points

Chemistry

1 answer:

Inessa [10]3 years ago

6 0

Its very hard to answer all of these questions

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what mass of grams of hydrogen sulfide will be required to participate 15 g of copper sulphide from a copper (ii) traoxosulphate

cestrela7 [59]

Characteristics of a Precipitate:
A precipitate is characterized by the following properties:

Appears as a solid species.
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Lady bird [3.3K]

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12. What is the frequency of a photon with an energy of 3.03 x 10-19 J?

bazaltina [42]

Answer:

$u=4.57x10^5GHz$

Explanation:

Hello.

In this case, given the formula:

$E=h*u$

Whereas E is the energy, h the Planck's constant and u the frequency of the photon. Thus, solving for it, we obtain:

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Or also:

$u=4.57x10^{14}Hz*\frac{1GHz}{1x10^9Hz}\\ \\u=4.57x10^5GHz$

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If a shell can hold a maximum of 32 electrons, what is the value of n

just olya [345]

I think the answe would be 16n

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