There are different types of Litmus paper and so the exact color may differ for each of these types. Also, water itself is neutral when pure but most tap water is slightly basic so it depends on what you use.
Some types of Litmus paper will not change color in pure water (such as the 1-12 pH yellow litmus paper), others will turn a purple color as an indication of the solution being not an acid (red) or a base (blue).
water is neutral to litmus therefore there will be no change in litmus paper.
It will stay/ retain its color. A litmus paper will only change when You put it in something that has acid.
Because pH = 7.0 for pure water, and from 7 to 8 lithmus color is more (but vaguely) blue than red. Only from 6 to 5.5 it is turning to red.
Red color in acidic solutions and blue color in basic solutions.
it stays the same
red into blue
red
The color become blue.
Remains blue
The blue litmus paper will not change color. Red litmus would turn blue in the presence of ammonia. Blue litmus paper will only change color in the presence of an acid, at which point 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.
All salts are considered basic, and as such, when dissolved in water and subsequently tested with litmus paper, should turn a bluish color. The tint of the blue color should be recognizable, although would look pale when compared to stronger basic compounds (ammonia, baking soda dissolved in water, sodium hydroxide, etc.)
To a blue color.
blue
I think you meant baking soda. Baking soda is basic, so red litmus paper will turn blue.
The color become blue.
Remains blue
The color become blue.
baking soda is a base or alkali so when it comes in contact with a litmus paper or solution, the litmus turns blue
red
The blue litmus paper will not change color. Red litmus would turn blue in the presence of ammonia. Blue litmus paper will only change color in the presence of an acid, at which point it will turn red.
As soap is alkaline in nature, it turns red litmus paper blue
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 colour is not changed.