Chemistry tests Flashcards
1
Q
Test for carbon dioxide
A
Turns lime water milky
2
Q
Test for water
A
Turns cobalt chloride paper from blue to pink
3
Q
Test for oxygen
A
relights a glowing splint
4
Q
Test for hydrogen
A
burns a lit splint with a pop
5
Q
test for nitrogen dioxide
A
brown gas
6
Q
test for sulfur dioxide
A
turns acidified potassium dichromate paper from orange to green
7
Q
test for sulfur dioxide
A
turns from acidified potassium permanganate from purple to colourless
8
Q
test for hydrogen sulfite
A
smells of rotten eggs
9
Q
what are isotopes?
A
atoms of the same element having same atomic number but a different mass number due to a different numbers of neutrons.
10
Q
what are allotropes?
A
different forms of the same elements with a change in state.
