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Veseljchak [2.6K]
2 years ago
12

As an electron in an atom moves from a higher energy state to a lower energy state, the atom

Chemistry
1 answer:
Verdich [7]2 years ago
5 0

Answer:B

Explanation:

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If you have 547.3 grams of Ni2O, how many molecules would be present?
jasenka [17]

Answer: 8.830418848725065

Explanation:

8.830418848725065

5 0
2 years ago
What is the formula for vanillic acid​
liberstina [14]

the formula for tht is C8H8O4

3 0
3 years ago
The air all around us is a mixture of gasses containing nitrogen, oxygen, carbon dioxide, argon
KiRa [710]

Answer:

Total pressure = 4.57 atm

Explanation:

Given data:

Partial pressure of nitrogen = 1.3 atm

Partial pressure of oxygen = 1824 mmHg

Partial pressure of carbon dioxide = 247 torr

Partial pressure of argon = 0.015 atm

Partial pressure of water vapor = 53.69 kpa

Total pressure = ?

Solution:

First of all we convert the units other into atm.

Partial pressure of oxygen = 1824 mmHg / 760 = 2.4 atm

Partial pressure of carbon dioxide = 247 torr / 760 = 0.325 atm

Partial pressure of water vapor = 53.69 kpa / 101 = 0.53 atm

Total pressure = Partial pressure of N +  Partial pressure of O +  Partial pressure of CO₂ +  Partial pressure of Ar +  Partial pressure of water vapor

Total pressure = 1.3 atm + 2.4 atm + 0.325 atm + 0.015 atm + 0.53 atm

Total pressure = 4.57 atm

4 0
3 years ago
If you have 2L of a solution with 6 moles of HCl in it, what is the molarity of it?
Vladimir [108]

Answer:

Molarity = 3 M

Explanation:

Given data:

Volume of solution = 2 L

Number of moles of HCl = 6 mol

Molarity = ?

Solution:

Molarity is used to describe the concentration of solution. It tells how many moles are dissolve in per litter of solution.

Formula:

Molarity = number of moles of solute / L of solution

by putting values,

Molarity = 6 mol / 2 L

Molarity = 3 M     (M = mol/L)

7 0
3 years ago
How many atoms are in four molecules of oxygen gas ​
Dmitrij [34]

Answer:

8 oxygen atoms

Explanation:

One molecule of oxygen gas has two oxygen atoms (O2). If there are four molecules, then we multiply two by four to get 8 atoms.

8 0
3 years ago
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