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LenaWriter [7]
2 years ago
6

How many molecules of water are there in 10 lbs of water?

Chemistry
1 answer:
Scilla [17]2 years ago
3 0

55.556

Explanation:

or something like that

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What minimum energy is required to excite a vibration in HF?
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Answer:

The energy of a vibrating molecule is quantized much like the energy of an electron in the hydrogen atom. The energy levels of a vibrating molecule are given by the equation: En=(n+21)hv where n is a quantum number with possible values of 1, 2, ... and v is the frequency of vibration.

Explanation:

hope it helps.

have a wonderful day!

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2 years ago
What’s a conjugative Bas of OH-
LiRa [457]

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the answer is O²- hopefully

8 0
3 years ago
If your front yard is 16.0 feet wide and 20.0 feet long, and each square foot of lawn accumulates 1250 new snowflakes every minu
Free_Kalibri [48]
I think the answer is 3x-x+2=4
3 0
3 years ago
4. Identify items in your life that are made of each type of element: metal, nonmetal, and metalloid. For each item, explain why
Neko [114]
Bed frame is metal so it is able to be sturdy and hold up
cleaning agents are mettaliods some contain boron to control strength of bleach , and removing stains 
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3 0
3 years ago
Compare the following sodium atoms in terms of their neutrons and mass numbers 24Na, 23Na​
olga_2 [115]

Na-24 and Na-23 have the same number of atoms=11, different neutrons(13 and 12),different mass number(24 and 23)

<h3>Further explanation </h3>

The elements in nature have several types of isotopes

Isotopes have the same number of protons and having a different number of neutrons.

So Isotopes are elements that have the same Atomic Number (Proton)

  • ₁₁²³Na

number of atoms = 11

mass number = 23

number of neutrons=23-11=12

  • ₁₁²⁴Na

number of atoms = 11

mass number = 24

number of neutrons=24-11=13

7 0
3 years ago
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