Salts from insoluble bases

Question 1

what are bases

Answer 1

compounds that neutralise acids

Question 2

alkalis are what in water

Answer 2

soluble bases such as the hydroxides

Question 3

acid + base

Answer 3

acid + base -> salt + water

Question 4

salts are made from what (ions)

Answer 4

positive metal ions and negative ion from acid

Question 5

where can the positive ion come from

Answer 5

metal, base or a carbonate

Question 6

what do salts have (charge)

Answer 6

no overall charge

Question 7

what charge does HCl have

Answer 7

no

Question 8

what charge do nitrate ions have

Answer 8

-1

Question 9

what charge do surface ions have

Answer 9

-2

Question 10

method for making

Answer 10

1.place some sulfuric acid in a conical flask and warm it in a water bath
2. add a spatula of copper oxide powder to the acid and stir with a glass rod
3. continue adding copper oxide powder until it is in
excess
4. filter the mixture to remove the excess copper oxide
pour the filtrate (the copper sulfate solution) into an evaporating basin
5. heat the copper sulfate solution to evaporate half of the water
6. pour the solution into a watch glass and leave to allow all of the water to evaporate