132-133: Carrying out Tests (Higher) Flashcards
Which state are oxygen, hydrogen and carbon dioxide in?
gases
name 2 propertys of oxygen, hydrogen and cabon dioxide
they are colourless and have no smell
we use lime water to test for _____ _______ ?
carbon dioxide
what happens to lime water when it reacts with carbon dioxide?
white clouds form as carbon dioxide bubbles
what do you do in a pop test?
put a lighted splint in gas
what do you use a pop test to test for?
hydrogen
what do you use a glowing splint to test for?
oxygen
what happens when you use a glowing splint to test for oxygen?
the splint re-lights
what does litmus do?
it shows whether a solution is an acid, neutral or if its an alkali
what is another word for litmus?
indicator
what colour does litmus go when reacted with an acid?
red
what colour does litmus go when reacted with a neutral substance?
stays the same
what colour does litmus go when reacted with an alkali?
blue
what type of gas is carbon dioxide?
acid
how can you test for water?
blue cobalt chloride paper