CHEM5 observations

Description

Flashcards on CHEM5 observations, created by Stephen Cole on 01/04/2015.
Stephen Cole
Flashcards by Stephen Cole, updated more than 1 year ago
Stephen Cole
Created by Stephen Cole over 9 years ago
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Resource summary

Question Answer
Observation(s) when concentrated sodium hydroxide is added to chromium hydroxide? Green solid dissolves to form a green solution
Observation(s) when cobalt(II) hexammine is left to stand in air? Yellow solution darkens to a red-brown solution
Observation(s) when an excess of concentrated ammonia is added to aqueous copper ions? Blue solution turns deep blue
Observation(s) when sodium is burned in air? Yellow flame and white powder
Observation(s) when dilute sulphuric acid is added to chromium hydroxide? Green solid dissolves to form a green solution
Colour of a solution of chromate(VI) ions? Yellow
Observation when hydrogen peroxide is added to a solution containing hexahydroxochromium(III) ions? Green solution turns yellow
Observation when dilute sulphuric acid is added to a solution containing chromate(VI) ions? Yellow solution turns orange
Colour of a solution of dichromate(VI) ions? Orange
Colour of a solution of chromium(II) ions? Blue
Observation(s) when sodium carbonate is added to a solution containing aluminium ions? White precipitate and effervescence
Colour of cobalt carbonate? Mauve
Colour of copper carbonate? Blue-green
Colour of iron carbonate? Green
Colour of a solution containing chromium(III) hexammine ions? Purple
Colour of a solution containing cobalt(II) hexammine ions? Yellow
Observation(s) when magnesium is burned in air? Bright white flame and white powder
Colour of a solution containing cobalt(III) hexammine ions? Red-brown
Colour of cobalt(II) hydroxide? Blue
Colour of copper(II) hydroxide? Blue
Colour of iron(II) hydroxide? Green
Colour of iron(III) hydroxide? Brown
Colour of a solution containing chromium(III) ions? Green
Colour of a solution containing cobalt(II) ions? Pink
Colour of a solution containing copper(II) ions? Blue
Colour of a solution containing iron(II) ions? Pale green
Colour of a solution containing iron(III) ions? Yellow
Observation(s) when concentrated hydrochloric acid is added to a solution containing copper ions? Blue solution turns green
Observation(s) when concentrated hydrochloric acid is added to a solution containing cobalt(II) ions? Pink solution turns blue
Observation(s) when iron(II) hydroxide is left to stand in air? Green solid darkens and turns orange around the top
Observation(s) when cobalt(II) hydroxide is left to stand in air? Blue solid turns beige
Observation(s) when a solution containing chromium(II) ions is exposed to air? Blue solution turns green
Observation(s) when ammonia is added to a solution containing iron(II) ions? Green precipitate
Observation(s) when ammonia is added to a solution containing iron(III) ions? Brown precipitate
Observation(s) when sodium carbonate is added to a solution containing chromium(III) ions? Green precipitate and effervescence
Observation when sodium carbonate is added to a solution containing cobalt(II) ions? Mauve precipitate
Observation(s) when magnesium is reacted with steam? White precipitate and effervescence
Observation(s) when sodium carbonate is added to a solution containing copper ions? Blue-green precipitate
Observation(s) when sodium carbonate is added to a solution containing iron(III) ions? Brown precipitate and effervescence
Observation(s) when sodium hydroxide is added dropwise to a solution containing chromium(III) ions? Green precipitate
Observation(s) when sodium hydroxide is added to a solution containing cobalt(II) ions? Blue precipitate
Observation(s) when ammonia is added dropwise to a solution containing copper ions? Blue precipitate
Observation(s) when sodium hydroxide is added to a solution containing copper ions? Blue precipitate
Observation(s) when excess ammonia is added to copper(II) hydroxide? Blue solid dissolves to form a deep blue solution
Observation when sodium carbonate is added to a solution containing iron(II) ions? Green precipitate
Observation when sodium hydroxide is added to a solution containing dichromate(VI) ions? Orange solution turns yellow
Observation when sodium hydroxide is added to a solution containing iron(II) ions? Green
Observation when sodium hydroxide is added to a solution containing iron(III) ions? Brown precipitate
Observation(s) when zinc and concentrated hydrochloric acid are added to a solution containing dichromate(VI) ions? Orange solution turns green; slight effervescence due to hydrogen by-product
Observation(s) when sulphuric acid is added to cobalt(II) hydroxide? Blue solid dissolves to form a pink solution
Observation(s) when sulphuric acid is added to a solution containing copper(II) hydroxide? Blue solid dissolves to form a blue solution
Observation(s) when sulphuric acid is added to iron(II) hydroxide? Green solid dissolves to form a green solution
Observation(s) when sulphuric acid is added to iron(III) hydroxide? Brown solid dissolves to form a yellow solution
Observation(s) when ammonia is added dropwise to a solution containing chromium(III) ions? Green precipitate
Observation(s) when excess ammonia is added to chromium(III) hydroxide? Green solid dissolves to form a purple solution
Observation(s) when ammonia is added dropwise to a solution containing copper ions? Blue precipitate
Observation(s) when white phosphorus is burned in air? White smoke and white solid
Observation(s) when ammonia is added dropwise to a solution containing cobalt(II) ions? Blue precipitate
Observation(s) when excess ammonia is added to cobalt(II) hydroxide? Blue solid dissolves to form a yellow-brown solution
Observation when sulphuric acid is added to aluminium hydroxide? White solid dissolves to form a colourless solution
Observation(s) when concentrated sodium hydroxide is added to aluminium hydroxide? White solid dissolves to form a colourless solution
Observation(s) when magnesium is added to cold water? Sparingly soluble white precipitate and very slow bubbling
Observation(s) when sodium is added to cold water? Vigorous reaction with effervescence
Observation(s) when aluminium is burned in air? Bright white flame and white powder
Observation(s) when sodium hydroxide is added dropwise to a solution containing aluminium ions? White precipitate
Observation(s) when sulphur is burned in air? Blue flame
Colour of chromium(III) hydroxide? Green
Colour of aluminium hydroxide? White
Colour of a solution containing aluminium ions? Colourless
Observation(s) when ammonia is added to a solution containing aluminium ions? White precipitate
Colour of a solution of manganese(II) ions? Pale pink
Colour of a solution of manganate(VII) ions? Purple
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