To understand that number of atoms therefore mass is conserved during a chemical reaction
To use balanced chemical equations for chemical calculations regarding mole concept
To use law of conservation of mass and stoichiometric calculations to analyse a mixture by purification
HS-PS1-7. Use mathematical representations to support the claim that atoms, and therefore mass are conserved during a chemical reaction.
Structure 1.4—Counting particles by mass: The mole
3.7 Solutions and Mixtures
Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations
10.1 Basic laws of chemistry and chemical calculations