desikayla2013
18.11.2020 •
Biology
A substance that speeds up the rate of chemical reactions is called
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Ответ:
It is a catalyst.
Explanation:
A catalyst provides an alternative route for the reaction with a lower activation energy. Some catalysts in chemistry are platinum, nickel, and manganese oxide.
don´t forget to brainllest:)
Ответ:
Rate of Dissolving
Surface Area. The rate at which a solute dissolves depends upon the size of the solute particles. ...
Agitation of the Solution. Dissolving sugar in water will occur more quickly if the water is stirred. ...
Temperature. Heating up the solvent gives the molecules more kinetic energy.
Explanation:
Factors affecting solubility
Temperature. Basically, solubility increases with temperature. ...
Polarity. In most cases solutes dissolve in solvents that have a similar polarity. ...
Pressure. Solid and liquid solutes. ...
Molecular size. ...
Stirring increases the speed of dissolving. hope this helps you :)