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During a titration, an acid is added drop by drop into an alkaline solution and the pH decreases. End point is the point at which the alkaline solution has become neutral, that is pH 7. You can use an ind...

This problem tests two key sub-topics in calculus, kinematics and the chain rule. Firstly, you must realise that the derivative of a velocity function will give you the acceleration function. So by findin...

Acids are defined as proton donors and bases are defined as proton acceptors.

To find the points at which an equation intersects the x-axis, we first need to factorise the equation to be able to find the solutions. To do this, we consider the general form of a quadratic equation a...

When heating a substance, the particles gain energy. As you heat a solid, it eventually changes to a liquid and if you continue to add more heat, it will eventually turn into a gas. When a solid turns int...