Share Acids, Bases and Salts
Save to Folder
NAME THE SUBSTANCE WHICH REACTS WITH AN ACID TO FORM A SALT AND WATER
BASE
WHAT IS THE DIFFERENCE BETWEEN AN ALKALI AND A BASE?
THE DIFFERENCE IS...
IF I AM AN ALKALI - WHAT ARE MY PROPERTIES?
- I FEEL SOAPY TO THE SKIN - I TURN LITMUS BLUE - GIVE SOLUTIONS WITH A pH GREATER THAN 7 - GIVE SOLUTIONS THAT CONTAIN OH- IONS
IF I AM A BASE - WHAT ARE MY PROPERTIES?
- NEUTRALISE ACIDS TO GIVE A SALT AND WATER ONLY - I AM THE OXIDES AND HYDROXIDES OF METALS - I AM INSOLUBLE IN WATER
NAME THE OTHER REACTIONS THAT ALL ACIDS TAKE PART IN, BESIDES NEUTRALISATION.
REACTIONS WITH - i) A REACTIVE METAL ii) A METAL CARBONATE
A ________ IS A COMPOUND MADE FROM AN ACID WHEN A METAL TAKES PLACE OF THE __________ IN THE ACID.
SALT, HYDROGEN
Which statements about alkalis are correct? 1. When reacted with an acid, the pH of the alkali increases; 2. When tested with litmus, the litmus turns blue; 3. When warmed with an ammonium salt, ammonia gas is given off.
2 ,3
Not all oxides are basic, such as Nitrogen dioxide and Carbon dioxide. However, Calcium oxide is an example of a base. How do we know this?
Calcium is a metal. The oxides (and hydroxides) of metals are bases.
When a metal reacts with hydrochloric acid, the products are __________________
salt and hydrogen gas
Name the gas that will given off when an acid reacts with a carbonate.
carbon dioxide
What type of metal salt is produced by the reaction of metal and hydrochloric acid?
chlorides
When a base reacts with an ammonium salt, ammonia is given off. TRUE or FALSE
TRUE
n a titration, the ____ is the point at which the indicator changes color and stays that way.
End point
sulphate salts are made from
sulphuric acid
Give two uses of calcium hydroxide.
1) It neutralises soil acidity 2) It neutralises acid gases produced by power stations.
Name the base used in Antacid indigestion tablets.
Magnesium Oxide
