Tag: atoms and molecules

Questions about laws of constant proportions, multiple proportions, conservation of mass, along with water properties including evaporation, condensation, and composition

Learn about water's composition, states (solid, liquid, gas), evaporation, condensation, and properties for class IX students

avogadro hypothesis

introduction to mole

Tests knowledge of John Dalton's atomic theory including its postulates, merits, and how later discoveries like isotopes disproved certain aspects of the theory