Why is the chemical formula magnesium sulfide written as MgS and NOT Mg2S2?
2 answers:
Explanation:
The chemical formula magnesium sulfide written as MgS and NOT because charge on magnesium ion is +2 and charge on sulfide ion is -2.
Therefore, these charges will cancel out each other as we write the formula in simplest crisscross method.
Also, the numbers in a chemical formula display the total number of atoms attached with each other or central atom.
For example, in there are two chlorine atoms attached to one calcium atom.
Therefore, denotes one sulfur atom is attached to magnesium atom. Hence, we do not write the formula of magnesium sulfide as
because this shows two magnesium atoms are attached to two sulfur atoms which is not true.
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39.96 g product form when 16.7 g of calcium metal completely reacts.
<h3>What is the stoichiometric process?</h3>Stoichiometry is a section of chemistry that involves using relationships between reactants and/or products in a chemical reaction to determine desired quantitative data.
Equation:
→
In this case, for the undergoing reaction, we can compute the grams of the formed calcium chloride by noticing the 1:1 molar ratio between calcium and it (stoichiometric coefficients) and using their molar mass of 40 g/mol and 111 g/mol by using the following stoichiometric process:
= 16.7 g Ca x
x
x
= 39.96 g
Hence, 39.96 g product form when 16.7 g of calcium metal completely reacts.
Learn more about the stoichiometric process here:
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