1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Makovka662 [10]
3 years ago
5

What happens when the compound MgO is formed?

Chemistry
2 answers:
OleMash [197]3 years ago
5 0

I would say that the first answer choice makes sense since the charge of Oxygen is +2. But I may be wrong, try it out!

ludmilkaskok [199]3 years ago
5 0

Answer: Oxygen receives two electrons from magnesium.

Explanation:

An ionic bond is formed when an element completely transfers its valence electron to another element. The element which donates the electron is known as electropositive element and the element which accepts the electrons is known as electronegative element. This bond is formed between a metal and an non-metal.

Electronic configuration of magnesium:

[Mg]=1s^22s^22p^63s^2

Magnesium atom will loose two electrons to gain noble gas configuration and form magnesium cation with +2 charge.

Mg^{2+}]=1s^22s^22p^63s^0

Electronic configuration of oxygen:

[O]=1s^22s^22p^4

Oxygen atom will gain two electrons to gain noble gas configuration and form oxide ion with -2 charge.

[O^{2-}]=1s^22s^22p^6

Thus Mg^{2+} and O^{2-} combine to form MgO.

You might be interested in
How many litres (L) of oxygen at STP can be obtained from 110 g of potassium chlorate? [R=0.0821 L.atm/K.mol]
lisabon 2012 [21]
Balance the equation first:

2 KClO3 (s) ---> 2 KCl (s) + 3 O2 (g)

Moles of KClO3 =  110 / 122.5 = 0.89

Following the balanced chemical equation:
We can say moles of O2 produce =  \frac{3}{2} x moles of KClO3

So, O2 = (3 / 2) x  0.89

= 1.34 moles

So, Volume at STP = nRT / P

T = <span>273.15 K
P = 1 atm

So, V = (1.34 x 0.0821 x 273.15) / 1  =  30.2 L</span>
3 0
3 years ago
How do molecular bonds form?
vaieri [72.5K]

Answer:

"A molecular, or covalent bond, is formed when atoms bond by sharing pairs of electrons. This sharing can occur from atom to atom, or from an atom to another molecular bond."

Explanation:

Google

8 0
3 years ago
Read 2 more answers
How many molecules are in 1 mole of H2O
Olegator [25]

Answer:

A mole (mol) is the amount of a substance that contains 6.02 × 10 23 representative particles of that substance. The mole is the SI unit for the amount of a substance. There are, therefore, 6.02 × 10 23 water molecules in a mole of water molecules. Water (H2O) is made from 2 atoms of hydrogen and 1 atom of oxygen.

8 0
2 years ago
A negatively charged ion that is formed by an atom gaining one or more electrons is called a(n):
Vilka [71]

Answer:

"Anion" is correct option

Explanation:

An anion is an ion that has gained one or more electrons, acquiring a negative charge.

8 0
3 years ago
Read 2 more answers
How and why are Endothermic and Exothermic reactions chemical changes?
Olin [163]

Answer:

Chemical reactions often involve changes in energy due to the breaking and formation of bonds. Reactions in which energy is released are exothermic reactions, while those that take in heat energy are endothermic.

Explanation:

8 0
3 years ago
Other questions:
  • How does the total volume of gas particles compare to the volume of the space between gas particles?
    6·1 answer
  • Is cough syrup compound or a mixture?
    12·2 answers
  • Almost all characteristics of a star are determined by its
    11·1 answer
  • The week of Feb. 29, 2016, PBS aired a documentary on sending humans halfway to space in the late 1950’s using balloons. They fi
    12·1 answer
  • Gold is the [...] of a valuable element.<br> A. Chemical formula. <br> B. Symbol. <br> C. Name
    5·2 answers
  • How can you improve the percent yield of copper in this lab? Check all possible strategies that will help you do so.
    12·2 answers
  • Hlo ;) lol im banned and my name is kimboslicer it is so sad my accout is bloked 4 23:12
    14·2 answers
  • Uses of carbon dioxide.​
    11·1 answer
  • PLEASE HELP ME YOU DONT HAVE TO DO WORK JUST TELL ME IF ITS RIGHT ON THE ORGANIC AND INORGANIC SIDE PLEASEE
    8·1 answer
  • If a tube is 2.2 meters in length, how long is the the tube in feet ?​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!