Q:

What does reactivity mean in science?

A:

Reactivity in science refers to how various chemicals participate in chemical reactions when they are exposed to other substances. A chemical that reacts easily with other substances is considered highly reactive.

One example of a reactive material is magnesium, which burns brightly when heated. In contrast, platinum does not burn when heated and it is considered non-reactive. Other chemicals that have little reactivity include gold and silver. Potassium, sodium and calcium rank near the top of most-reactive materials. Some chemicals react together so strongly that they create a new substance called a compound. A common example of a compound formed through reactivity is water, formed when hydrogen and oxygen react.

Sources:

  1. bbc.co.uk
  2. bbc.co.uk

Is this answer helpful?

Similar Questions

  • Q:

    How do you explain the difference between mixtures and solutions for kids?

    A:

    A precise but simple explanation of the difference between a mixture and a solution is that a mixture is a substance made of other substances that are mixed but not joined together, while a solution is a substance made of two or more substances that do join together. If the kids are older, it should be noted that a chemical reaction takes place to create a solution and that no such reaction occurs in a mixture.

    Full Answer >
    Filed Under:
  • Q:

    How is diesel fuel made?

    A:

    According to the American Fuel and Petrochemical Manufacturers, diesel fuel is refined from crude oil through the use of a distillation column, making use of the varying boiling points of all the various chemicals in crude oil to separate products from the crude oil mixture. Diesel fuel is then further refined to remove pollutants in order to achieve the cleaner-burning low-sulphur diesel used commercially.

    Full Answer >
    Filed Under:
  • Q:

    What are some types of chemical reactions you can demonstrate in a lab?

    A:

    According to About.com, a variety of experiments involving chemical reactions can be demonstrated in a laboratory, including a thermite and ice reaction, the Briggs-Rauscher oscillating clock, the dancing gummy bear reaction and others. Many of these entertaining experiments use common substances such as ice, sugar and potassium chlorate, an ingredient in bleach.

    Full Answer >
    Filed Under:
  • Q:

    What is the pKa value of citric acid?

    A:

    The pKa value of an acid is used to determine the ability of an acid to donate protons in chemical reactions. Weak acids such as citric acid have a high pKa. The pKa of citric acid is 6.5.

    Full Answer >
    Filed Under:

Explore