2Mg+ O₂= 2MgO
The charge of Mg is+2 and the charge of Oxygen is -2. 2 oxygen atoms will have a charge of -4 so the Mg atoms have to equal +4. A coefficient of 2 for the Mg atoms will balance it out
Explanation:
Spectator ions refers to elements/molecules that do not form part of the reaction. Basically, these elements/molecules are in the same state in the reactant and product side. From the given reaction, Ca and SO4 change their state from aqueous to solid and Na and Cl do not change their state. Therefore, Na and Cl are spectator ions and Ca and SO4 are not spectator ions.
Answer:
The correct option is C.
Answer:
Avogadro's number is 6.022* 10^23
Answer:
c
Explanation:
the shell is where the electrons are located and or orbit in a atom
I think the correct answer from the choices listed above is the second option. <span>This is a double displacement reaction. Both of the reactants are soluble, but when they are combined for a reaction, magnesium carbonate will form a precipitate. Hope this answers the question.</span>
