S3 Chemistry Acids and Bases

​What are oxides?

When a substance burns in air it reacts with oxygen to form an oxide.

​

https://www.chemedx.org/video/burning-sulfur-produce-sulfur-dioxide

​​

​

When sulfur is burned in air it produces sulfur dioxide gas. Sulfur lies at the right hand side of the Periodic Table so it is a non-metal.

          sulfur   +   oxygen   →   sulfur dioxide

 Sulfur dioxide dissolves in water to form an acidic solution known as sulfurous acid.

          sulfur dioxide   +   water   →   sulfurous acid

Some text here about the topic of discussion

When carbon dioxide is bubbled through universal indicator solution it turns orange showing that an acidic solution has been produced.

When carbon, a non-metal, burns in air it produces carbon dioxide.

​

carbon   +   oxygen   →   carbon dioxide

Carbon dioxide is slightly soluble in water, forming an acidic solution.

https://www.youtube.com/watch?v=FXq1nEDsoq0​

​

​

Nitrogen and oxygen in the air will only react with each other if they are supplied with a lot of energy. They react in lightning storms and also in car engines where there is a high energy spark. The gas produced is nitrogen dioxide which dissolves in water forming an acidic solution.

​

https://www.youtube.com/watch?v=UliHodQ6IWI

​

Nitric acid, sulfuric acid and hydrochloric acids are commonly found in the lab.

Nitric acid and sulfuric acid are made from non-metal oxides.

Hydrochloric acid is made when hydrogen chloride gas is bubbled through water.

Some text here about the topic of discussion

https://www.youtube.com/watch?v=WIdWjqZsGgg​