Chemistery Testing For Gases1

Question 1

Testing for hydrogen what do we need ?

Answer 1

. This includes the gas hydrogen empty test tube filled with air.

. Testing for hydrogen we remove the Bing and insert a burning splint.

. Hydrogen gas bung rapidly and makes the squeaky pop noise.

Question 2

Testing for oxygen , what does it need, what does it include.

Answer 2

. Test tube contains gas which might / most likely to be oxygen.

. To test for oxygen we use glowing splint.

. If the test tube contains oxygen the glowing splint will re light again.

Question 3

Testing for carbon dioxide, what does it include, what does it need

Answer 3

.Test for carbon dioxide we need lime water on a test tube.

. With a straw blow into the lime water.

. If the lime water turns milked or cloudy then it is carbon dioxide.

Question 4

Testing for chlorine, what do we do, and what is needed?

Answer 4

. We insert damp blue litmus paper into a test tube

. Chlorine bleaches the litmus paper and turns it white. That is how you know the gases is chlorine

Question 5

What is portable water?

What is pure water?

What do they contain?

Answer 5

.Portable water means it is safe to drink.

.Portable water is not the same as pure water.

. Pure water contains no dissolved solid such as salt.

. Pure water has the Ph of 7

Question 6

What does portable water contains?

Answer 6

. Portable water contains dissolved solid.

. To see if the portable water is at the ph of 7 we use universal indicator , if water if at Ph of 7, then turns green.

Question 7

Tasting for oxygen what do we need and what happens.

Answer 7

.Test tube
.Glowing splint
If oxygen is here then it relights