questionmark.gifmulti-word fill quiz 7Fwf3 on "Simple chemical reactions"
(a doc brown worksheet for QCA KS3 science-chemistry)

Site Meter* Do online OR printout, do, return to check answers. * KS3 Science Index * EMAIL comment?query * Doc Brown's Chemistry updated June 11th 2009 *

   acid      baking      carbon      carbonate      change      chemical      dioxide      indigestion      limestone      limewater      metal      milky      pressure   
bubbling3.gif1. The 'fizz' in drinks is due to the 'escape' of the gas which is dissolved under high at the factory.

2. This gas can be tested for using . If the gas is carbon dioxide, when bubbled through this solution, it turns it .

3. The gas carbon dioxide is formed when any acid reacts with any compound.

4. Rocks such as fizz with acid and dissolve over thousands of years in acid rain to form deep gorges.

5. Several substances in the home are also carbonates and 'fizz' with . They include powder and remedies.

6. When an acid reacts with something to form a gas, the fizzing is evidence of a .