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The paper changes colour from red to blue. This is because when you mix MgO with water, you now have Mg(OH)2 solution which is basic and hence changes the colour of red litmus paper to blue.

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13y ago

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Related Questions

What color does red litmus paper turn into from a acid?

Red litmus paper remains red when dipped into an acid. Blue litmus paper will turn red in an acid. Similarly, Blue litmus remains blue in a base. Red litmus turns blue in a base.


What colour does the acid turn the red litmus paper?

Acid can't turn red litmus paperbur base canturn it blue .


What color does litmus paper change if base or paper?

When litmus paper touches an acid, the paper changes to red. When it touches a base, the paper changes to blue. By comparing the color the litmus paper changed to by a chart, you could determine how strong or weak that acid or base is.


What colour does litmus paper go in acid?

Litmus paper usually turns either blue or pink (sometimes red) which indicates whether the chemical is an acid or a base. If the paper turns blue it is a base. If pink or red it is an acid.


What happens to litmus paper touches an acid?

When blue litmus paper touches an acid it becomes red. This is the type of litmus paper that detects acids. When red litmus paper touches an acid, it will remain red. This is used to test a base.


What is litumus paper used to indicate?

litmus paper indicates wether a substance is an acid or a base if it is an acid the paper is turns red, if base it turns blue


What happens when a BLUE litmus paper is dipped in an acid?

Blue litmus paper turns RED in an acid. Red litmus paper turns BLUE in a base.


Which litmus paper do you use to identify an acid and how does it react?

Online science class does not mean you can just google for answers. Read your textbook!


What color does red litmus paper turn in Nitric Acid?

Nothing, red litmus paper changes in the presence of an acid not a base, blue litmus paper turns red with nitric acid


What is the word and symbol chemical equation for litmus paper reacting with a acid or base?

Litmus paper is an indicator that turns red in acidic solutions and blue in basic solutions. The chemical equation for litmus paper reacting with an acid could be: H+ (from the acid) + Litmus paper (Red) -> Litmus paper (Blue). Similarly, the equation for litmus paper reacting with a base could be: OH- (from the base) + Litmus paper (Red) -> Litmus paper (Blue).


Is react with litmus paper and turn it red a base or an acid?

an acid


Does a base turn blue litmus paper blue?

yes a blue litmus paper turns red when put into an acid