Investigate factors which affect the speed of a chemical reaction and calculate the time taken for the reaction to occur in National 5 Chemistry.

A catalyst does not actually become part of the products of the reaction. Summary Students watch a video and do a quick activity to see that a catalyst can increase the rate of the breakdown ...

The rate of change (ROC) is the speed at which a measurement changes over a period. Learn why the rate of change matters in investing and finance.

It is expected that water should influence the reaction rate, since it mediates the reaction—however, to what extent and how water controls the reaction were unknown.

The measurement of the tunnelling rate in a hydrogen reaction has enabled the verification of quantum-tunnelling calculations, providing a benchmark for testing future quantum calculations.

Why do you think this works? The chemical reaction that happens in a light stick is slower when cold. Do you think that starting with warmer reactants increases the rate of other chemical reactions?

Osaka Metropolitan University researchers have solved a long-standing mystery in the field of sonochemistry: why do chemical reactions slow down when ultrasonic power becomes too strong?

President Donald Trump’s formula for calculating tariffs, detailed in a statement from the United States Trade Representative (USTR) on Wednesday night, bases tariff rates on trade imbalances ...

The tariff rates were calculated using exports and imports from each country, a look at the formula.

Learn how to calculate the internal rate of return (IRR) in Excel and how it’s used to determine whether a capital investment can be profitable.