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it will turn red
Well if you place blue litmus paper in saliva and it turns red, then the saliva is acidic. If you put red litmus in the saliva and it turns blue, then the saliva is alkaline. However, if the red litmus doesn't change colour and the blue litmus doesn't change colour, the saliva would be neutral.
The color become blue.
Remains blue
Red litmus paper will turn blue in the presence of a base. Toothpaste is a base, so the litmus paper would turn blue.
it will turn red
Well if you place blue litmus paper in saliva and it turns red, then the saliva is acidic. If you put red litmus in the saliva and it turns blue, then the saliva is alkaline. However, if the red litmus doesn't change colour and the blue litmus doesn't change colour, the saliva would be neutral.
baking soda is a base or alkali so when it comes in contact with a litmus paper or solution, the litmus turns blue
When a blue litmus paper are put in a solution of baking soda and the conditions are under the basic ph level, it will turn into red. And if a red litmus paper is put under acidic conditions, it will turn into blue.
blue
I think you meant baking soda. Baking soda is basic, so red litmus paper will turn blue.
The colour is not changed.
To a blue color.
litmus paper nutral
Remains blue
The color become blue.
baking powder will not show any colour change in litmus soltion because water is absent but wen it is mixed wid water and then subjected to the litmus solution, the red litmus wud change to blue.