Answer: The correct formula is 
Explanation:
For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.
Here magnesium is having an oxidation state of +2 called as
cation and bromine
is an anion with oxidation state of -1. Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral
.
The cations and anions being oppositely charged attract each other through strong coloumbic forces and form an ionic bond.
If a cell is placed in an isotonic solution, there will be no net flow of water into or out of the cell, and the cell's volume will remain stable. If the solute concentration outside the cell is the same as inside the cell, and the solutes cannot cross the membrane, then that solution is isotonic to the cell.
The highest point of a wave<span> is </span>called<span> the </span>crest<span>. ... </span>Wave<span> height is the vertical </span>distance between<span> the </span>crest<span> and trough. Wavelength is the horizontal </span>distance between waves<span> in a series. Wavelength can be measured </span>between two wave crests<span>.</span>
Answer:
<h3>The answer is 27.80 mL</h3>
Explanation:
The volume of a substance when given the density and mass can be found by using the formula

From the question
mass = 87.3 g
density = 3.14 g/mL
We have

We have the final answer as
<h3>27.80 mL</h3>
Hope this helps you