How do you define the word stoichiometry and where does the origin of this word come from?

For every reactant particle, is there a corresponding product particle? Has charge been conserved in the reaction as written? Chemical reactions conserve (i) mass, and (ii) charge absolutely, and invariably....

The word STOICHIOMETRY comes from two Greek words, stoikhein which means element, and the metron* which means measure. In the process of mixing elements in during chemical reactions the...

The balanced equation for the combustion of methane is given by: $underbrace(CH_4(g) +2O_2(g))_"80 g" rarr underbrace(CO_2(g) + 2H_2O(l))_"80 g"$ This equation is balanced stoichiometrically. What does it tell us? It...

I'm assuming you mean reacting masses - for example: "Calculate the amount of $CO_2$ formed when 58g of $CaCO_3$ decomposes." So first you need to write a balanced equation: $CaCO_3...

A chemical equation unequivocally establishes mass to mass equivalence; this is why teachers go to such lengths to demonstrate them. If you want to learn how to do this there...

All that changes is how the relevant information is presented. The core of all problems is -mole relationship established by the balanced equation. The tricky part is getting the...

Excellent question regarding and the law of conservation of mass. According to the Law of Conservation of Mass, in "ordinary" chemical reactions, mass is neither created nor destroyed. Stoichiometry deals...

That is an extremely common question when first using . The answer is that you are converting based on number, not on mass. Think of a sample problem like this...

What a conversion factor essentially represents is a relationship between two different units, i.e. a way to go from one unit to another. Conversion factors are usually set up as...

Start by writing the balanced chemical equation that describes this reaction. $"MgO"_ ((s)) + 2"HNO"_ (3(aq)) -> "Mg"("NO"_ 3)_ (2(aq)) + "H"_ 2"O"_ ((l))$ The chemical equation tells...