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Bumek [7]
3 years ago
9

Please help I will give extra points

Chemistry
2 answers:
Svetllana [295]3 years ago
7 0
I think that it would be 12
yaroslaw [1]3 years ago
7 0
12 hydrogen atoms. One compound of PH3 contains 3 hydrogen atoms. Therefore, 4 of those molecules would be 12 hydrogen atoms. (4 times 3)
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i dont know ask the man behind the man

Explanation:

4 0
3 years ago
How much heat is lost or gained by the calorimeter
Maslowich

Answer:

1.113 kJ or 1,113 J.

Explanation:

I hope this helps :)

5 0
3 years ago
Metallic bonds are responsible for many properties of metals such as conductivity true or false?.
Alex17521 [72]

It is true that metallic bonds are responsible for many properties of metals such as conductivity.

Metallic bond is a type of chemical bond.

Metallic bond is formed between electrons and positively charged metal ions.

Substances with metallic bond conduct an electric current in liquid and solid state, because they have mobile electrons.

Most metals (for example sodium, calcium, iron, silver) have strong metallic bond, because strong electrostatic attractive force between valence electrons (metals usually have low ionization energy and lose electrons easy) and positively charged metal ions.

Metallic bond increace electrical and thermal conductivity.

More about metallic bond: brainly.com/question/21081009

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3 0
2 years ago
2) What is the concentration of NaCl in a solution prepared by diluting 56.98 ml of 0.5894 M stock
RSB [31]

Answer:

The NaCl concentration will be 0.03 M.

Explanation:

Given data:

Initial volume = V₁ = 56.98 mL (56.98/1000 = 0.05698 L)

Initial concentration = M₁= 0.5894 M

Final volume = V₂= 1.20 L

Final concentration = M₂= ?

Solution:

By diluting the solution volume of solution will increase while number of moles of solute remain the same.

Formula:

Initial concentration × Initial volume  = Final concentration × Final volume

M₁V₁ = M₂V₂

M₂ = M₁V₁ / V₂

M₂ = 0.5894 M × 0.05698 L / 1.20 L

M₂ = 0.0336 M /1.20  

M₂ = 0.03 M

3 0
4 years ago
Compressing a sample of hydrogen gas to one half its initial volume will have what effect on its pressure?
avanturin [10]
By Boyle's Law pV = constant, halfing the volume would require doubling the pressure to maintain the constant. Hence, pressure doubles.
6 0
4 years ago
Read 2 more answers
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