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3 years ago

Which electron configuration of the 3 d energy sublevel is the most stable? *

Chemistry

1 answer:

Lostsunrise [7]3 years ago

5 0

Since the chemical definition of "stable" means close to having a full valence shell, the answer is 3d^10.

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Please answer ................

nataly862011 [7]

Answer:

Explanation:

i. SO2

ii. Na2O

3 0

2 years ago

A(n) __________ is formed when one atom loses an electron and another atom accepts that electron.

Roman55 [17]

The answer is a cation

8 0

3 years ago

The atomic and mass numbers for four different atoms are given below. Which two are isotopes of the same element? (2 points)

AVprozaik [17]

B and C have the same atomic numbers, which means they have the same number of protons, which is the defining part of an element.

5 0

3 years ago

Nitrogen dioxide and water react to form nitric acid and nitrogen monoxide, like this:

posledela

Answer: The value of the equilibrium constant Kc for this reaction is 3.72

Explanation:

Equilibrium concentration of $HNO_3$ = $\frac{15.5g}{63g/mol\times 9.5L}=0.026M$

Equilibrium concentration of $NO$ = $\frac{16.6g}{30g/mol\times 9.5L}=0.058M$

Equilibrium concentration of $NO_2$ = $\frac{22.5g}{46g/mol\times 9.5L}=0.051M$

Equilibrium concentration of $H_2O$ = $\frac{189.0g}{18g/mol\times 9.5L}=1.10M$

Equilibrium constant is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios. It is expressed as $K_c$

For the given chemical reaction:

$2HNO_3(aq)+NO(g)\rightarrow 3NO_2(g)+H_2O(l)$

The expression for $K_c$ is written as:

$K_c=\frac{[NO_2]^3\times [H_2O]^1}{[HNO_3]^2\times [NO]^1}$

$K_c=\frac{(0.051)^3\times (1.10)^1}{(0.026)^2\times (0.058)^1}$

$K_c=3.72$

Thus the value of the equilibrium constant Kc for this reaction is 3.72

5 0

3 years ago

This is when an organism like insects or plants become trapped in amber

BigorU [14]

thats very nice lol, things stuck in amber are very cool

5 0

3 years ago