Probably the most obvious solution is to use a bit of red food colouring!
Red cabbage can turn red when mixed with lemon juice due to a change in pH level. The anthocyanin pigments in red cabbage react to the acidity of lemon juice, causing the cabbage to turn red.
Red because the lemon juice is acidic.
Lemon juice contains citric acid so blue litmus paper dipped in lemon juice will turn red indicating that it is acidic.Blue litmus paper become red in acidic solutions (lemon juice contain citric acid).
i think your hair will turn green?
It will become red !
Lemon juice contains citric acid so blue litmus paper dipped in lemon juice will turn red indicating that it is acidic.
A green-y yellow.
It would remain red, red litmus paper only reacts to blue in the presence of a base. Lemon juice is acidic and thus wouldn't turn the paper a color. If blue litmus paper was used in the lemon juice it would turn red. Consequently dipping blue litmus paper in a base won't change the color because it does not react with bases, only acids.
Lemons can turn red after cutting because they are oxidizing. To prevent this, use lemons immediately after cutting or juice them.
Any acid will turn litmus paper red, Household examples would be most juices, vinegar, and carbonated drinks.
all acidic substances with a PH below 7< turn the Universal indicator red due to their acidity.
A household product that will turn litmus paper red is an acidic substance, such as vinegar or lemon juice. Acids have a pH below 7, which is the range that litmus paper turns red in.