5.2 - Preparation and Properties of Ethyne (Leaving Cert Chemistry): Flashcards
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Practise the cards
15 cards from this deck
Reactant with to produce ethyne
Reactant with to produce ethyne
Water
Formula of calcium dicarbide
Formula of calcium dicarbide
How to remove ethyne impurities
How to remove ethyne impurities
Bubble through acidified copper(II) sulfate
Why discard first test tube of ethyne
Why discard first test tube of ethyne
Contains mostly air
How to add water to
How to add water to
Dropwise
Flame type when ethyne burns
Flame type when ethyne burns
Smoky, sooty
Cause of sooty flame
Cause of sooty flame
Incomplete combustion, limited
Limewater + ethyne result
Limewater + ethyne result
Turns milky
Bromine water + ethyne result
Bromine water + ethyne result
Decolourised
What bromine decolourisation shows
What bromine decolourisation shows
Ethyne is unsaturated
Potassium manganate(VII) + ethyne
Potassium manganate(VII) + ethyne
Purple to colourless
Method to collect ethyne
Method to collect ethyne
Water displacement
Products of
Products of
What milky limewater indicates
What milky limewater indicates
produced
Bond type in ethyne
Bond type in ethyne
Carbon-carbon triple bond