Answer:

Explanation:
¡Hola!
En este caso, dado que estamos tratando con problem sobre porcentaje peso/peso de hierro, arena, cobre y aluminio, primero debemos calcular la masa inicial de estos dos primeros en la mezcla original de acuerdo con:

Ahora si podemos calcular la masa de la mezcla final como la suma de las masas de todos los constituyentes de la mezcla:

Finalmente, podemos calcular los porcentajes P/P como se muestra a continuación:

¡Saludos!
Fluorine and element M combine to create the ionic compound with the formula
electrons make up the M cation. Sn is the element M.
<h3>
What is an ionic compound, how is it made, and an example?</h3>
A compound known as an ionic compound is one that is created when two oppositely charged ions come together to form a chemical bond, such as sodium chloride.
When an atom (or collection of atoms) gains or loses electrons, it produces ions, which are charged particles. Ionic compounds are substances made of ions. (A positively charged ion is a cation, whereas a negatively charged ion is an anion.) When elements share electrons in a covalent connection to create molecules, they produce covalent or molecular compounds.
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I can help you only with what is electron in ground state.
The electron which is not excited or over which no external force is acting that could possibly make it jump to the higher state,is said to be in its ground state.In excited state,the electron has more energy than it normally has.
For convenience,suppose you are an electron,you are in Normal mood,but when your little brother snatches the Tv remote from your hand,you become angry.Your normal state is your ground state and your angry state is your excited state.
<span> Bars are found in approximately two-thirds of all spiral galaxies.</span>
Basically any animal group that doesnt have any backbones. for example fish birds different types of mammals and reptiles.
hope this helps!