CO2 is used in Fizzy Drinks and Fire Extinguishers

Question 1

Why is CO2 used in carbonated drinks?

Answer 1

To make them fizz

Question 2

What does the CO2 do in water and why?

Answer 2

It’s slightly soluble and dissolves into the drink when under pressure

Question 3

What does the formation of carbonic acid produce?

Answer 3

A slightly acidic solution

Question 4

What happens when you open the fizzy drink?

Answer 4

The bubbles are the CO2 escapiv

Question 5

Why will the drink go flat if you leave it out long enough?

Answer 5

All the CO2 will escape

Question 6

Carbonic acid symbol equation:

Answer 6

CO2(g) + H2O(l) —> H2CO3(aq)

Question 7

Carbonic acid word equation:

Answer 7

Carbon dioxide + water —> carbonic acid

Question 8

What is carbon dioxide also used in?

Answer 8

Fire extinguishers

Question 9

How do fire extinguishers work?

Answer 9

The CO2 is more dense than air - sinks onto flames and stops oxygen fire needs getting to it

Question 10

When are carbon dioxide fire extinguishers used instead of water extinguishes?

Answer 10

When they’re aren’t safe e.g electrical fires