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zysi [14]
4 years ago
14

Choose all the answers that apply.

Chemistry
2 answers:
djverab [1.8K]4 years ago
8 0
A


Just learned this in school
Sidana [21]4 years ago
7 0
The answer is D I did this
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Which of the following will most likely result in a decrease in population
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Answer:

i miss my mommy ;/

Explanation:

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4 years ago
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How many grams are in 2.41 times 10^24 atoms of magnesium chloride?
Blizzard [7]
Use Avogadro's number to calculate the number of moles of Mg<span>Cl2 . The number of moles of Cl is twice as </span>much, because the ratio of Cl in MgCl2 to MgCl2 is 2:1. 3.61⋅10246.022⋅10<span>23=5.99. Therefore, there are 12 moles of Cl.</span>
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4 years ago
Draw the best lewis structure for h 2 ​ co 3 ​ and calculate the formal charge on carbon.
schepotkina [342]
The Lewis structure of Carbonic Acid (H₂CO₃) is given below. In structure it is shown that carbon has a double bond with one oxygen atom and two single bonds with hydroxyl groups.

Formal Charge;
                        Formal charge is caculated as,

Formal charge  =  # of valence e⁻ - [# of lone pair of e⁻ + 1/2 # of bonded e⁻]

Formal charge on Carbon;

Formal charge  =  4 - [ 0 + 8/2]

Formal charge  =  4 - [4]

Formal charge  =  Zero

7 0
3 years ago
A qué periodo y grupo pertenecen los átomos de un elemento cuyos átomos presentan 12 electrones caracterizados con ml = 0. Dar c
Klio2033 [76]

Answer:

Periodo: 3.

Grupo: IIA.

Explanation:

Hola.

En este caso, es posible determinar el periodo y grupo por medio de la configuración electrónica del elemento que tiene 12 electrones:

1s^2,2s^2,2p^6,3s^2

De este modo, vemos que el termino final es 3s^2, por lo tanto, decimos que el periodo es 3, ya que este coincide con el nivel de energía. Adicionalmente, para s^2 tenemos que el átomo se encuentra en el grupo IIA ya que tiene dos electrones en su capa o nivel (3) más externa. Esto coincide con el número cuántico dado (magnético, ml=0) ya que cuando el término en la configuración electrónica tiene el subnivel s, este tiene un valor de cero.

Así, el elemento en cuestión sería Magnesio.

¡Saludos!

3 0
4 years ago
This planet is often called the red planet.it is one of the closest planets to earth. People wonder if there is life on this pla
nasty-shy [4]

Answer:

Mars

Explanation:

Mars is a planet called the red planet.

It is one of the nearest planets to the Earth.

Scientists are researching in order to find life on Mars.

Hope this helped!

~AnonymousHelper1807

8 0
4 years ago
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