Chemical Reactions Flashcards
1
Q
What is the test for oxygen?
A
it relights a glowing splint
2
Q
What is the test for hydrogen
A
it burns with a pop
3
Q
What is the test for carbon dioxide?
A
it turns lime water cloudy
4
Q
What is an exothermic reaction
A
when energy is released to the surroundings (temperature increases)
5
Q
what is an endothermic reaction
A
when energy is taken from the surroundings (temperature decreases)
6
Q
What are some everyday chemical reactions?
A
hair growing
toasting bread
Petrol Burning
