Density of gases Animation Play

Density of substances Animation Play

Derivation of an expression for the mass of substance Animation Play

Determination of average atomic mass of boron Animation Play

Determination of enthalpy change in combustion reactions (1) Student activity Play

Determination of molecular structure Student activity Play

Determination of numbers of cells Student activity Play

Determination of numbers of cells Whiteboard exercise Play

Determination of reaction rate by mass, conductometric and colorimetric measurements Student activity Play

Determination of the molecular structure of compound A using the mass spectrum Animation Play

Determining the empirical formula Animation Play

Determining the empirical formula Student activity Play

Determining the enthalpy of solution of sodium hydroxide Animation Play

Determining the mass of a solid Animation Play

Determining the mass of solute present in a titrated sample Whiteboard exercise Play

Determining the mass of solute present in a titrated sample Student activity Play

Determining the molecular formula Student activity Play

Determining the molecular formula Whiteboard exercise Play

Determining the molecular formula Animation Play

Determining the relative molecular mass Animation Play

Determining the water content of a sample of soil Animation Play

Different questions about the same operation Whiteboard exercise Play

Different questions about the same operation. How many times more? How many times less? Student activity Play

Different questions about the same operation. How much more? How much less? Student activity Play

Discovery of elementary particles Student activity Play