Balancing Chemical Equations and Applying the Mole Concept (Leaving Cert Chemistry): Flashcards

Atoms cannot be created or destroyed in reactions

Same number of each atom type on both sides

Coefficients only, never chemical formulas

$6 \times 10^{23}$

Quantitative study of reactants & products in reactions

Element

Measure

Count atoms of each element on both sides

Verify the balance by counting atoms again

Avogadro's number ($6 \times 10^{23}$)

Total mass of reactants = total mass of products

Balance the chemical equation