How could you increase the chances of a chemical reaction occuring?

Answer 1

You can increase the rate of chemical reactions by doing a few things, like:

-Increasing the amount or concentration of some reactantseg. a stain may be removed more quickly by adding more stain remover, or using a more concentrated stain remover

-Changing the temperature eg. Fruit ripens more quickly in warmer weather, and food keeps longer when stored in a cool place like a fridge

-Increasing the Surface Area of the reactant eg. iron filings dissolve faster in acid than the same amount in a big lump of iron

-Increasing the catalysts (helper chemicals) eg. in a cars catalytic converter, the element rhodium helps harmful exhaust fumes mix with oxygen to make them less harmful

Answer 2

Reaction rate depends on:

1. The temperature; higher temperature means faster reaction
2. The concentration of a solution; the more concentrated the solution, the faster the reaction.
3. The pressure of a gas; the higher the pressure the faster the reaction
4. The fineness of division of a solid reactant; breaking up a solid increases the rate
5. The presence of a suitable catalyst, if one can be found, will increase the rate.

The first four work because they increase the number of collisions per second between the reactants, and the last because the catalyst creates an easier reaction route.

Answer 3

To increase the chances of a chemical reaction occurring, you can increase the concentration of reactants, raise the temperature, use a catalyst to lower activation energy, or increase the surface area of the reactants by grinding or crushing them.

Answer 4

1. if reaction is endothermic - increase temperature
2. if reaction is exothermic - decrease temperature
3. increase concentration of reactants
4. add catalyst

Answer 5

Examples: increase the temperature or pressure, add a catalyst, stir the samples, grind solid samples, etc.

Answer 6

Adding a catalyst is a useful method.

Answer 7

Use a catalyst

Answer 8

Heat it.