Alkalis turn red cabbage juice blue/green/yellow.
Alkali turns litmus paper blue.
either a green, dark green or blue colour for i have done the test myself
Alkalis turn phenolphthalein pink or magenta.
Universal indicator will turn dark blue or purple when mixed with a strong alkali.
ph 8- p14 is a alkali. blue for weak alkali (ph 8) purple for strong alkali (ph14)
Alkali turns litmus paper blue.
either a green, dark green or blue colour for i have done the test myself
Alkalis turn phenolphthalein pink or magenta.
Universal indicator will turn purple or blue when mixed with a weak alkali.
it goes bluey purpley when it is in water and red in acid and yellow - green in alkali
Universal indicator will turn dark blue or purple when mixed with a strong alkali.
Blue. As bicarbonate is alkali
get some cabbage and crush it up get all the juice out and then pout in little tubes. add what chemicals you want to find out if thy are acid or alkali. the the colour will change and then you are going to have to find out what colour is what as i don't know! x]
ph 8- p14 is a alkali. blue for weak alkali (ph 8) purple for strong alkali (ph14)
Universal indicator will turn green when an acid is mixed with an alkali. This green color indicates a neutral pH level which is achieved when the acid and alkali have neutralized each other.
Blue. This answer assumes that you are referring to litmus paper.
yay, great fun , and works for purple sprouting broccolit too. (in fact if you want to do some fun kitchen /garden chemistry, you can try all sorts of petals and veg. beetroot is good I seem to recall!) oh yes , what colour?-- it goes turquoise in alkali and pink in acid. Bicarbonate of soda and lemon juice are all you need for a fun afternoon with your 8 year old.