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3 years ago

Número cuántico que designa el nivel de energía en el que se localiza un electrón:

Chemistry

1 answer:

Fed [463]3 years ago

4 0

Answer:

Creo que la respuesta es n. Transalation : I think the answer is N.

Explanation:

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When a car engine burns gasoline, the results of the reaction are similar to when cells burn glucose. both reactions release car

-Dominant- [34]

the answer is heat. while a car is in idol, the tailpipe gets very hot, (motorcycle, car, etc.) this also produces h20 which you can see dripping out of the tailpipe.

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4 years ago

When balancing equations does po4 counts as one element or on p and 4 o?

Radda [10]

As one element .because po4 is phosphate for e.g.: NaPO4

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4 years ago

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The type of radiation which is identical to a high energy electron is known as a(n). beta, alpha, or gamma particles

Schach [20]

The type of radiation which is identical to a high energy electron is known as a(n) beta.

Answer: A) or the first option.

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4 years ago

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A student dissolved 5.00 g of Co(NO3)2 in enough water to make 100. mL of stock solution. He took 4.00 mL of the stock solution

Marianna [84]

Answer:

0.136g

Explanation:

A student dissolved 5.00 g of Co(NO3)2 in enough water to make 100. mL of stock solution. He took 4.00 mL of the stock solution and then diluted it with water to give 275. mL of a final solution. How many grams of NO3- ion are there in the final solution?

$Co(NO_3)_2(aq)\rightarrow Co^{2+}(aq)+2NO_3^{-}(aq)$

Initial mole of Co(NO3)2 $=\frac{mass}{molar mass}$

$=\frac{5.00}{182.94} \\\\=0.02733mol$

Mole of Co(NO3)2 in final solution

$=\frac{4.00}{100}\times 0.02733\\\\=0.04\times 0.02733\\\\= 0.001093mol$

Mole of NO3- in final solution = 2 x Mole of Co(NO3)2

$=2\times 0.001093\\\\=0.002186mol$

Mass of NO3- in final solution is mole x Molar mass of NO3

$=0.002186\times62.01\\\\=0.136g$

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4 years ago

• What policies might people put in place to conserve water levels in lakes and aquifers?

vladimir2022 [97]

Some policies they might do is to put limits on water usage, like making sure that people don't use too much water in baths and when they are tending to their gardens.

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4 years ago