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
Contact [7]
3 years ago
5

A magnesium ion, Mg2+, is formed from a magnesium atom, Mg.

Chemistry
1 answer:
konstantin123 [22]3 years ago
5 0

Answer:

The correct row is B.

Explanation:

The formation of the magnesium ion, Mg²⁺, comes from the removal of 2 electrons from the valence shell of the magnesium atom.<em> </em>Since the remotion is of electrons, the nucleus of the atom remains the same, so the number of protons and the number of neutrons does not change.<em> </em>

If the number of proton change, then the atom also change, since the identity of an atom is related to the atomic number which is the same to the proton number.          

Now, if the number of neutrons changes, then we would be in the presence of an isotope of the magnesium atom.        

Therefore, the correct row is B.  

I hope it helps you!                            

You might be interested in
Label each transition in this flow chart as a chemical change or a physical change
Elodia [21]

1) Left up: a chemical change. We can see new substance (red-blue) is formed from one blue and one red atom.

In chemical change new substances are formed, the atoms are rearranged and the reaction is followed by an energy change.

2) Left down: a chemical change. We can see new substance (red-blue) is formed from two blue and one red atoms.

3) MIddle: a physical change. There is no new substance. Bonds are not broken.

4) Right up: a chemical change. Bonds are broken.

5) Right down: a physical change. Change of state of matter.

4 0
3 years ago
A flask with a volume of 125.0mL contains air with a density of 1.269 g/L. What is the mass of the air contained in the flask?
Aliun [14]
<span>In order to solve this problem you must first make sure all your numbers are in like terms. From the density value you can see that it is grams per liter. The first conversion you must do in convert the 125.0 mL value to Liters which you would do by dividing by 1000 because 1 liter is equal to 1000 mL. 125.0 divided by 1000 is 0.125 Liter. Now you will use the density equation to solve. The density equation is density is equal to mass divided by volume. Plug in your known numbers for density and volume. Then solve for mass. So Density (1.269 g/l is equal to mass divided by volume (.125 Liter) You must rearrange the equation to multiple density by volume which is 1.269 times 0.125 which will give you 0.1586. Because the Liters cancel each other out, the answer's unit will be grams. Your final answer is 0.1586 grams.</span>
4 0
3 years ago
what is the chemical reaction and mole ratio between oxalate and permanganate in the titration reaction
Tom [10]

5C2O4^(2-)(aq) + 2MnO4^-(aq) + 16H+(aq) → 10CO2(g) + 2Mn2+(aq) + 8H2O(l)` is the chemical reaction and mole ratio between oxalate and permanganate in the titration reaction.

A chemical reaction is a procedure that causes one group of chemical components to change chemically into another. Chemical reactions, which can frequently be described by a chemical equation, traditionally include changes that only affect the locations of electrons in the formation and dissolution of chemical bonds between atoms, with no change to the nuclei (no change to the elements present). The study of chemical processes involving unstable and radioactive elements, where both electronic and nuclear changes may take place, is known as nuclear chemistry.

To know more about chemical reaction, click here,

brainly.com/question/11231920

#SPJ4

6 0
1 year ago
Which is a characteristic of the electron sea model for metallic bonding?
raketka [301]
The correct one is option 2

4 0
3 years ago
Read 2 more answers
Study Figure 10-1. The strong nuclear force felt by a single proton in a large nucleus
fiasKO [112]
<span>Answer: option B. is much less than that felt by a single proton in a small nucleus.
</span>
<span /><span /><span>
Explanation:
</span><span />

<span>The strong nuclear force is one of the four forces in nature: 1) strong nuclear force, 2) weak nuclear force, 3) electrostatic force, and 4) gravity.
</span><span />

<span>Strong nuclear force is the strongest of the forces and is resposible for the attraction of the protons and neutrons in the nucleus, and so it is the responsibile for the stability of the atom nuclei.
</span><span>
</span><span>
</span><span>Neverthelss, it is also a force of very low range it can act only at very small distances. That means that the larger the nucleus the weaker the force.
</span><span>
</span><span>
</span><span>That is the reason for the unstability of the large atoms.</span>
6 0
4 years ago
Read 2 more answers
Other questions:
  • How many total atoms in the compound Al3NO2
    11·2 answers
  • What is true about the molar mass of chlorine gas? the molar mass is 35.5 g. the molar mass is 71.0 g. the molar mass is equal t
    7·1 answer
  • Enough of a monoprotic weak acid is dissolved in water to produce a 0.0144 0.0144 M solution. The pH of the resulting solution i
    13·1 answer
  • What is the likely impact of water's high specific heat on life on Earth? (3 points)
    11·1 answer
  • If you burn 29.4 g of hydrogen and produce 263 g of water, how much oxygen reacted?
    8·1 answer
  • H₃C-Ç=CCH₃<br>сна сHз (what is the name of this <br> chemical formula)​
    11·1 answer
  • What is Chemical substance?​
    15·1 answer
  • Aluminum chloride, AlCl3, is an inexpensive reagent used in many industrial processes. It is made by treating scrap aluminum wit
    11·1 answer
  • A 2.500g sample of compound containing only Carbon and Hydrogen is found containing 2.002g of Carbon. Determine the empirical fo
    13·1 answer
  • Add a constant temperature when the volume of the gas is decreased what happens to its pressure
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!