Showing posts with label Chemistry. Show all posts
Showing posts with label Chemistry. Show all posts

Tuesday, September 11, 2012

Equations YOU MUST KNOW!!!!!!!!!!!!!!!

Two equations that will help you to predict the products formed from equations are below. You must know this in order to write word equations, and then balance them.

ACID + BASE --> METAL SALT + WATER    (Neutralisation reaction)

(Bases can either be Metal Oxides or Metal Hydroxides)
(Acids will either be Sulfuric acid, Hydrochloric acid and Nitric acid)

ACID + CARBONATE --> METAL SALT + WATER + CARBON DIOXIDE

(Evidence of Carbon dioxide, bubbling. Gas can be tested using limewater)

Good luck!!

Thursday, June 21, 2012

Rates of Reaction Animation

Click here to watch an animation showing two reactants in a chemical reaction. You can observe how increasing concentration, temperature and surface area lead to more collisions. This animation doesn't show one key idea........are all collisions successful? If collisions were successful, what should we see in this animation? Come and tell me the answer for a Chocolate fish!!

Thursday, May 17, 2012

Model answers for Science Point revision worksheets

Click here to download file to check answers for worksheets from Science Point. Note the 'square symbol' has replaced the arrow sign in the equation and the drawing of Ca and Cl atom is not shown.
Good luck with the test,
Miss Meehan

Wednesday, May 16, 2012

Flashcards for Acids/Bases Revision

Quizlet (or Studystack) is a good resource to use for helping you to remember key definitions and concepts.

Feel free to print off the stack on AS 1.5 Acids and Bases into flash cards, or you can test yourself online and play games such as scatter and space-race to better your high score!  Click here for cards