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Masja [62]
4 years ago
15

The first two ionization energies of nickel.

Chemistry
1 answer:
Radda [10]4 years ago
7 0
The first two ionization energy of nickel are expressed as:
Ni(g) = Ni^+(g) + e^- Ni^+(g) = Ni^2+(g) + e^- 
IOnization energy os the energy that is neccessary in order to remove one mole of electrons from an atom.
Hope this helps.
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Which of the following best describes how forces affect matter?
trapecia [35]

it is b forces hold matter together

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7 0
3 years ago
A Questic
Ivanshal [37]

Answer:

No, it is not feasible because the Gibbs free energy change is positive

Explanation:

∆Hreaction= (-602 KJ/mol) - (-348 KJ/mol) = -254 KJ/mol

∆Sreaction = (42 + 27) J/Kmol - (33 + 44) J/K = -8J/Kmol

From;

∆G = ∆H - T∆S

∆G = 254 × 10^3 J/mol - [340K × (-8 J/Kmol)]

∆G = 2.57 × 10^5 J/mol

Note that when the change in free energy is positive, a reaction is non spontaneous. Only a reaction that has a negative change in free energy is spontaneous.

3 0
3 years ago
Which of the following factors would reduce the yield of a reaction?
Olenka [21]

Answer:

B. The reactants form additional unexpected products.

Explanation:

7 0
3 years ago
A certain crunch cereal contains 11.0 grams of sugar(sucrose, C12H22O11) per serving size of 60.0 gram. How many
Paladinen [302]

Answer:

51.859 grams

Explanation:

Given:

Mass of sugar in the crunch cereal per serving= 11.0 grams

Mass of cereal served per serving = 60.0 grams

Molar mass of the sugar (C₁₂H₂₂O₁₁) = ( 12 × 12 + 22 × 1 + 16 × 11 ) = 342 grams

Number of moles of sugar per serving = Mass / Molar mass

= 11.0 / 342

= 0.03216 moles

Now,

0.03216 moles sugar requires 60 grams cereal

for 0.0278 moles of sugar, cereal required = (60 / 0.03216) × 0.0278

or

for 0.0278 moles of sugar, cereal required = 51.859 grams

5 0
4 years ago
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sineoko [7]

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