science tests

Question 1

test for hydrogen

Answer 1

magnesium + hydrochloric acid. Then capture the hydrogen in an upside down boiling tube and put a lit splint underneath and it will make a pop sound.

Question 2

What is the positive test for lipids

Answer 2

Cloudy liquid that doesn’t seperate

Question 3

What is the positive test for starch

Answer 3

Black, purple color

Question 4

test for carbon dioxide

Answer 4

Calcium carbonate + HCl bubble the carbon dioxide through limewater. The limewater will turn into a milky /cloudy color.

Question 5

What is the positive test for protein

Answer 5

cloudy blue color

Question 6

How to test for oxygen

Answer 6

Manganese dioxide+hydrogen peroxide
and put a blowing splint in the tube and the splint should relight

Question 7

What is the positive test for sugar

Answer 7

orange color