C3 Flashcards
What are the properties of group 1 elements
They react easily with water, very light, more reactive as you go down the group,
What are the properties of transitional metals
Form coloured compounds, form different ions like Fe(II) and Fe(II), they are also useful catalysts and are highly desirable
What are the properties of group 7 elements
They are Halogens, they are less reactive as you go further down the group,
What colour does Lithium form in the flame test ?
crimson - reddy brown
What colour does sodium form in the flame test ?
yellow
What colour does potassium form in the flame test ?
lilac
What colour does calcium form in the flame test ?
red
What colour does barium make in the flame test ?
green
What colour does chloride make in silver nitrate solution ?
White
What colour does bromide make in silver nitrate solution
cream
What colour does iodide make in silver nitrate solution
yellow
What do carbonate compounds release when tested with a little hyrdochloric acid
Carbon Dioxide
How are sulphates identified ?
by adding barium chloride solution which produces a white solid of barium sulphate
Why are barium salts safe to use in the human body although they are toxic ? and whats it used for ?
It’s used for X-rays and its safe because it doesn’t get digested and just passes though our system
Whats the Calculation for the Titration method ?
number of moles = concentration x ( volume / 1000)
