What rules underlie the writing of chemical equations?

Answer 1

Equations REPRESENT chemical reactions...........whose behaviour must be established by experiment.

Additionally, chemical reactions adhere to TWO UNIQUE RULES:

#"1. Mass is conserved."#

#"2. Charge is conserved."#

Thus, mass and charge are CONSERVED in our representation of chemical reactions.

See here for the half equation method, here for redox reactions, here for combustion reactions, and here for how stoichiometry is used in everyday life.

However, keep in mind that chemical equations are just simulations of real experiments, whose results and actions need to be monitored and evaluated.

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Answer 2

Jose Ayala

Chemical equations must accurately reflect the stoichiometry of the reaction and adhere to the law of definite proportions. Other fundamental principles include conservation of mass, balancing of atoms and charges, and representing the states of matter of the reactants and products.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.