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gavmur [86]
3 years ago
13

How many atoms of phosphorus are in 4.90 mol of copper(II) phosphate?

Chemistry
1 answer:
Nutka1998 [239]3 years ago
8 0
There are  6.02214*10^23 molecules , I'm not so sure about it though.
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Explain why you cannot just take away a proton to make a halogen negative.​
Ilia_Sergeevich [38]

The force that holds protons and neutrons together is too strong to overcome.

<h3>Explanation</h3>

Consider the location of the particles in an atom.

  • Electrons are found outside the nucleus.
  • Protons and neutrons are found within the nucleus.

Protons carry positive charges and repel each other. The nucleus will break apart without the strong force that holds the protons and neutrons together. This force is much stronger than the attraction between the nucleus and the electrons. X-rays are energetic enough for removing electrons from an atom. However, you'll need a collider to remove protons from a stable nucleus. You could well have ionized the atom with all that energy.

Also, changing the number of protons per nucleus will convert the halogen atom to an atom of a different element. Rather than making the halogen negative, removing a proton will convert the halogen atom to the negative ion of a different element.

6 0
3 years ago
Analysis of an unknown compound reveals that the compound is 27.29% carbon and 72.71% oxygen. The molar mass of the compound is
Nana76 [90]

Answer:

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Explanation:

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6 0
3 years ago
a sample that has a half life of 45 years take ____ for the count rate to drop from 600 cpm to 150 cpm
Bond [772]

Answer:

90yrs

Explanation:

Half life is the time taken for half of an original radioactive material to decay by half.

For the sample;

    Half - life = 45yrs

  Original amount  = 600cpm

 

                 Start                                  Number of atoms    

                 0yrs                                                600cpm

                                   First half life

                 45yrs                                              300cpm

                                  Second half life

                 90yrs                                               150cpm

5 0
3 years ago
I have this chemistry question and I’m really struggling to answer it. Can someone please help me figure out the steps &amp; the
Digiron [165]

Answer: 133,333.333 meters.

Explanation:

I forgot how to explain this looool.

7 0
3 years ago
What is necessary in order to build an ionic compound?
Mandarinka [93]

Answer:

idk what is the qution

Explanation:

6 0
3 years ago
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