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devlian [24]
3 years ago
7

How do decomposers break down waste material and and the remains of dead organisms?

Chemistry
1 answer:
VladimirAG [237]3 years ago
8 0

the answer is A or B

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What is the frequency of light that has an energy of 1.8 x 10-15 J? 6.626 x 10-34 Js 2.7 x 1018 Hz 3.7 x 10-19 Hz 1.2 x 10-48 Hz
Ann [662]
In order to determine the frequency, we may use Planck's equation:

Energy = Planck's constant * frequency

Rearranging and substituting the values,

frequency = (1.8 x 10⁻¹⁵) / (6.63 x 10⁻³⁴)
f = 2.71 x 10¹⁸ Hz

The frequency of the light is 2.7 x 10¹⁸ Hz
8 0
3 years ago
Unknown halogen X2 was added to each of two test tubes which contained aqueous NaCl and aqueous NaI, respectively. When hexane w
weeeeeb [17]

Answer:

Br_2

Explanation:

The compound X_2 is Br_2.

The reaction included are:

Br_2+NaCl--> No\ reaction  (because  bromine is less reactive than chlorine)

But , because of hexane the solution get dilute and its color changes to orange.

Now, NaI is added and we know Br is more reactive than I.

Therefore it replace it.

Reaction: Br_2+NaI-->NaBr+I_2

Purple color develop due to formation of Iodine.

7 0
2 years ago
How many electrons can the fourth energy level can accommodate? a.2 b.8 c.16 d.32​
OverLord2011 [107]

Answer:

8

Explanation:

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Li2SO4 _____ an electrolyte in solution.<br> A. Is <br> B. Is not
Rasek [7]

Answer:

a

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it is an electrolyte because of its strong polar chemical bond

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Energy conversion means reducing energy use True or false
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