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il63 [147K]
3 years ago
6

How many electrons can fit in the third energy level

Chemistry
1 answer:
Drupady [299]3 years ago
5 0

Answer:

18 electrons

Explanation:

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Given the reaction: HNO2 (aq) <-> H+ (aq) + NO2- (aq); write the ionization constant for the reaction.
Nuetrik [128]

Answer:

see explanation

Explanation:

HNO₂ ⇄ H⁺ + NO₂⁻

Ka = [H⁺][NO₂⁻]/[HNO₂]

4 0
3 years ago
What is abbreviated structural formula of the 2-metil-5-isopropiloctan?​
Alja [10]

Answer:

            CH3

            |

CH3-    C H  -CH2-CH2-      CH   - CH2-CH2-CH3

                                              |

                                              CH

                                           /     \

                                         CH3  CH3

Explanation:

Octan

C-C-C-C-C-C-C-C

Metyl

CH3 -

Isopropyl

     CH3

    /

- CH

   \

     CH3

2-metil-5-isopropiloctan

           CH3

            |

CH3-    C H  -CH2-CH2-      CH   - CH2-CH2-CH3

                                              |

                                              CH

                                           /     \

                                         CH3  CH3

                           

8 0
4 years ago
What is the morality of a solution witch composed of 200.12 g HCI in 5.2 L solution?
Dovator [93]

Answer:

1.06 M

Explanation:

200.12/36.46= ans./5.2

grams/atomic mass = ans./volume (L)

5 0
3 years ago
Which of these groups of metal would have the most similar properties?. a. Ag, Au, Cu, Zn. b. Cr, Fe, Co, Ni. c. Al, Si, P, S. d
serg [7]
The correct answer is letter (d.) Mg, Ca, Sr, Ba

These four elements are found in Group 2 of the periodic table, which are alkaline metals, therefore they have the very similar properties because of their 2 valence electrons, which makes them reactive.
3 0
3 years ago
Read 2 more answers
How many significant figures are in 1.2 x 10^5
OLEGan [10]

Answer:

2

Explanation:

The 1 & 2 are both signifigant becuase they are presented in scientific notation.

3 0
3 years ago
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