Coursework.Info - Inspiration in an Instant

On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:

Luke Hawkins 31.12.00 10 Hackpen Y10 Science Coursework Coursework Title: What factors affect the rate of reaction between hydrochloric acid and sodium thiosulphate? Scientific Background: From: 'Thinking Chemistry' textbook by Michael Lewis and Guy Walker. * The collision theory. The collision theory is the most common one used to explain the facts about rates. The two main statements of this theory are: - Particles must collide before they can react, - The colliding particles between them must contain enough energy to cause bonds and break. Example: reaction of hydrogen with iodine. 1. A collision without enough energy. 2. The molecules bounce apart. The collision has not been successful. 1. A collision with enough energy: bonds are broken and new bonds are formed. 2. Hydrogen iodide molecules form. The collision has been successful. List of all the variables: * Temperature, * Time, * Concentration of sodium thiosulphate, * Concentration of hydrochloric acid, * pH And I could also add a catalyst/enzyme into the experiment to speed up the reaction. Input variable: I'm going...

Get instant access

• Instant, unlimited access to our documents in full
• Swap your work for free access, or pay £4.99
• To see the full version of this document and 151,744 others