What are colloids? Student activity Play

What are colloids? Animation Play

What happens during the process of dissolution? Animation Play

What is a solution of a quadratic equation? Student activity Play

What is a solution of a quadratic equation? Whiteboard exercise Play

What is a solution? Animation Play

What is a solution? Animation Play

What is molarity? Animation Play

What is the enthalpy of hydration? Animation Play

What is the pH of this salt solution? Whiteboard exercise Play

What is the pH of this salt solution? Student activity Play

What is titration about? Student activity Play

Which beakers contain a saturated solution? Whiteboard exercise Play

Which metal ions produce acidic solution? Animation Play

Why are water solutions of metal salts usually acidic? Animation Play

Why does copper not displace zinc from a solution of a zinc salt? Animation Play

Why does dissolving electrolytes in water cause them to dissociate? Animation Play

Why does zinc displace copper from solutions of copper salts? Animation Play

Why salts of strong acids and strong bases produce neutral solutions Animation Play

Why salts of weak acids and strong bases produce alkaline solutions? Animation Play

Why two acids or bases of equal concentrations may have different pHs Student activity Play

Writing and solving the equation Student activity Play

Wrong steps in reasoning Whiteboard exercise Play

Wrong steps in reasoning Student activity Play

Yoko's and Lena's number Whiteboard exercise Play