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 does not turn an apple red; instead, it helps prevent the apple from browning when exposed to air. The citric acid in lemon juice slows down the oxidation process that causes the apple's flesh to turn brown. If an apple appears red after applying lemon juice, it is likely due to the apple's natural color rather than a change induced by the juice.
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.