Test :c Flashcards
1
Q
Metal + acid ->
A
A salt and water
2
Q
Acid + metal oxide ->
A
Salt + water
3
Q
Acid + metal carbonate ->
A
A salt + water + carbon dioxide
4
Q
What is the reacivity series ?
A
A series listing how reactive metals are
5
Q
How do you make a salt from copper oxide and sulfuric acid ?
A
First you mix the insoluble copper with the liquid , heat and wait for it to turn blue , then you filter the solution for excess copper and leave it to evaporate and form crystals
6
Q
How do you test for hydrogen ?
A
Squeak pop / Thumb over test tube
7
Q
How do you test for carbon dioxide ?
A
Use limewater and if it turns cloudy it’s positive
8
Q
What does strong / weak acid refer to ?
A
Dilution of the acid , like juice
9
Q
What happens when NaCI is electrolysed ?
A
Hydrogen + chloride gas is produced
