Year 9
Chemical reactions and conservation
Move from atoms and formulas to word equations, balanced equations and mass calculations.
Subtopics
010203
Reactants, products and particle models
Read formulas and identify atoms rearranging into new substances.
Not attempted8 questionsBalancing simple equations
Choose coefficients that conserve every element without altering formulas.
Not attempted8 questionsConservation of mass in open and closed systems
Use mass data and system boundaries to account for gases and all reaction products.
Not attempted8 questions