Chemical Reactions + Chemical Test Flashcards
1
Q
What is the Law of Conservation of Mass
A
- Matter can’t be created nor destroyed
- Total Mass of reactants = Total Mass of Products
- Total atoms of reactants = Total atoms of products.
2
Q
Testing for Gas
Which 4 gas we will test!
A
- Hydrogen
- Oxygen
- Carbon Dioxide
- Chlorine
3
Q
How to test for Hydrogen?
A
Put lit splint in, if heard squeaky pop!
Hydrogen is presence
4
Q
How to test for Oxygen?
A
Put glowing splint in, if it relights
Oxygen is presence
5
Q
How to test for Carbon Dioxide?
A
If lime water turn to milky/cloudy.
CO2 is presence
6
Q
How to test for Chlorine?
A
If damp litmus paper got bleached.
Chlorine is presence
7
Q
Which gas will generate a squeaky pop when tested?
A
Hydrogen
8
Q
Which gas need to use Lime Water to test?
A
Carbon Dioxide
