Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
25 Cards in this Set
- Front
- Back
|
What 2 things will a pure substance do ? |
boil and condense at specific temp melt and freeze at specific temp |
|
|
How do you calculate Rf value ? |
Distance by substance ———————————— Distance by solvent |
|
|
How do you test for Hydrogen ? |
When you mix it with air it burns with a squeaky pop |
|
|
How do you test for chlorine ? |
Turns damp indicator paper white |
|
|
How do you test for oxygen ? |
Delights a glowing splint |
|
|
How do you test for carbon dioxide ? |
When bubbled through limewater, turns the limewater cloudy |
|
|
What colour does the flame go with copper ions ? |
green |
|
|
What colour does the flame go for calcium ions ? |
Brick red |
|
|
What colour does the flame go for lithium ions ? |
crimson red |
|
|
What colour does the flame go for potassium ions ? |
lilac |
|
|
What colour does the flame go for sodium ? |
yellow |
|
|
When aluminium ions are mixed with sodium hydroxide solution, what colour will the precipitate be ? |
White - dissolves if more sodium hydroxide solution is added |
|
|
When calcium ions are mixed with sodium hydroxide solution, what colour will the precipitate be ? |
white |
|
|
When magnesium ions are mixed with sodium hydroxide solution, what colour will the precipitate be ? |
white |
|
|
When copper ions are mixed with sodium hydroxide solution, what colour will the precipitate be ? |
blue |
|
|
When iron 2 ions are mixed with sodium hydroxide solution, what colour will the precipitate be ? |
green |
|
|
When iron 3 ions are mixed with sodium hydroxide solution, what colour will the precipitate be ? |
brown |
|
|
What halide forms a white precipitate ? |
Chlorides |
|
|
What halide forms a cream precipitate? |
bromides |
|
|
What halide forms a yellow precipitate? |
iodides |
|
|
What is the functional group of alcohols ? |
hydroxyl, -OH |
|
|
What’s the functional group for carboxylic acids ? |
carboxyl, -COOH |
|
|
What’s the functional group for esters ? |
-COO |
|
|
What’s the general formula for Alkanes ? |
CnH2n+2 |
|
|
What’s special about alkenes ? |
The have a double carbon bond C=C |
