EL 7 Flashcards
Acid + Alkali –>
Salt and Water
Acid + Carbonate –>
Salt and Water and carbon dioxide
Acid + Base–>
Salt and water
Acid + Metal–>
Salt and Hydrogen
Are Nitrates Soluble?
Yes
Group 1 elements soluble or insoluble?
Soluble
Most OH- ‘s are soluble except…
- Barium
- Calcium
- Lead
- Silver and Lead Halides
- Metal Hydroxides (apart from G1 hydroxides and Ammonia hydroxide)
Are Halogens soluble or insoluble? What do they form?
Insoluble, precipitates
Give examples of ionic compounds
NaCl CaO
Give examples of covalent structures
Diamond and Graphite
Give an example of metallic bonds
Sodium, copper, iron
Give examples of simple molecular
CO2 H2O
What colour precipitate does Copper form with Sodium Hydroxide added to?
Blue
What colour precipitate does Iron (II) form with Sodium Hydroxide added to?
Dirty Green
What colour precipitate does Iron (III) form with Sodium Hydroxide added to?
Orange/Brown
What colour precipitate does Lead form with Potassium Iodide added to?
Bright Yellow
What colour precipitate does Chlorine form with Silver Nitrate added to?
White
What colour precipitate does Bromine form with Silver Nitrate added to?
Cream
What colour precipitate does Iodine form with Silver Nitrate added to?
Pale Yellow
What colour precipitate does sulfate form with Barium Chloride added to?
White
What state is every precipitate formed in?
Solid (S)
How do you remove excess oxides?
Remove all acid, Tesp pH filter to remove warm to evaporate and dry
How do you get pure crystals
Filter
Wash in distilled water to remove ions
Dry to get crystals
What is a dative bond?
Where both electrons come from the same element
What is the difference between dative and covalent bonds?
Dative give both electrons from the same element whereas covalent share electrons
