Paper 1: Bases And Alkalis

Question 1

What is a base?

Answer 1

Any substance that reacts with an acid to from a salt and water only

Question 2

What is the general equation for a bases reacting with an acid?

Answer 2

Base + acid —> salt + water

Question 3

What does a reactive metal produce when it reacts with acids?

Answer 3

A salt and hydrogen only

Question 4

What is the basic equation for a metal reacting with an acid?

Answer 4

Metal + acid —> salt + hydrogen

Question 5

What is the basic equation for metal carbonate reacting with acid?

Answer 5

Metal carbonates + acid —> salt + water + carbon dioxide

Question 6

What is the test for hydrogen?

Answer 6

Squeaky pop test

Question 7

How do you test for hydrogen?

Answer 7

Put metal and acid is a test tube and but an upturned test tube on top
Gas collects in the upturned tube
Put a lighted splint into upturned test tube
Should ignite splint with a pop

Question 8

What is the test for carbon dioxide?

Answer 8

Limewater test

Question 9

How do you test for carbon dioxide?

Answer 9

Put carbon dioxide in limewater and if carbon dioxide is present it turns milky