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MatroZZZ [7]
3 years ago
13

What’s the answer to this question

Chemistry
1 answer:
Masja [62]3 years ago
8 0

Answer:

B. Angle BOA

Hope this helped! :)

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For a phase change, H0 = 2 kJ/mol and A S0 = 0.017 kJ/(K•mol). What are
34kurt

Answer:

ΔG = -6.5kJ/mol at 500K

Explanation:

We can find ΔG of a reaction using ΔH, ΔS and absolute temperature with the equation:

ΔG = ΔH - TΔS

Computing the values in the problem:

ΔG = ?

ΔH = 2kJ/mol

T = 500K

And ΔS = 0.017kJ/(K•mol)

Replacing:

ΔG = 2kJ/mol - 500K*0.017kJ/(K•mol)

ΔG = 2kJ/mol - 8.5kJ/mol

<h3>ΔG = -6.5kJ/mol at 500K</h3>

8 0
3 years ago
Identify the missing coefficient in the balanced equation and classify the type of reaction.
Lostsunrise [7]

Answer:

Option 6 ) Neutralization

Explanation:

For this case, the missing coefficient would be a "6" before the H₂O, within final products (right side of the equiation), hence, the final reaction should be:

2H₃PO₄ + 3Ba(OH)₂ ------> Ba₃(PO₄)₂ + 6H₂O

You should have in mind that the amount of atoms at each side of the chemical equation should be the same, so as to comply with the principle of mass conservation. If you add "6" on the left side of the H₂O, the equation will be balanced (for each side, lef and right, you will have: 12H, 2P, 14O and 3Ba)

Lastly, this is a chemical neutralization reaction, where an acid (H₃PO₄) is reacting with a base (Ba(OH)₂) in order to finally obtain a neutral salt (Ba₃(PO₄)₂) and water (H₂O)

5 0
3 years ago
Read 2 more answers
Which ion in the ground state has the same electron configuration as an atom of neon in the ground state?
Ainat [17]
  • Cl-

Lets see how

  • Z for Cl is 9
  • One electron is added so new Z=10

Electronic configuration

  • 1s²2s²2p⁶

Or

  • [Ne]

option B is correct

6 0
2 years ago
Read 2 more answers
You would expect a phosphorous-chlorine bond to be
zlopas [31]

Answer: option 4. polar, with the chlorine end having a partial negative charge.


Explanation:


1) A polar bond is a covalent bond in which the electrons are pulled more strongly by one of the atoms and then they are not evely distributed between the two linked atoms.


2) That happens when the two atoms have diferent electronegativities.


3) As the per periodic table trend of the electronegativity, you can predict that the electronetativity of Cl is higher than that of P.


In fact, in a table of electronegativities you can find that the electronegativity of Cl is 3.16 while the electronegativity of P is 2.19.


This is a 3.16 - 2.19 = 0.97 difference.


As explained, that difference means that Cl will pull the electrons more strongly resulting if a partial negative charge on Cl and a partial positive charge on P, i.e. a polar bond.

4 0
3 years ago
Read 2 more answers
Which is an example of a mixture?
suter [353]
Trail mix becasue it is a mixture of different things
4 0
3 years ago
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