Dark Vilolet
Blue or green, because antacid is basic.
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Burnt Magnesium ribbon ----> MgO (magnesium oxide)(basic in nature) When added to water, it forms its hydroxide MgO+H2O ----> Mg(OH)2 (which is a base) when added to litmus paper or litmus solution....it will give a light blue colour
Water provides H+/ OH- ions for the dry gas(to be tested with litmus) to show its acidic/alkaline nature.
The acidity or alkalinity of a solution, pH indicator.
a litmus tells us if a substance is acidic or alkaline an acid will turn red litmus paper blue and an alkali will turn blue litmus paper red. if an unknown substance is tested with litmus and the colour did not change, then the substance is said to be neutral or it can be simply water. note that water is needed for acids to show its acidic properties........
litmus paper turns blue litmus red when tested on an acid and red litmus blue when tested on a base
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S+O2 gives rise to SO2. This is dissolved in water and tested with litmus paper.Red litmus turns blue which means it is acidic
Burnt Magnesium ribbon ----> MgO (magnesium oxide)(basic in nature) When added to water, it forms its hydroxide MgO+H2O ----> Mg(OH)2 (which is a base) when added to litmus paper or litmus solution....it will give a light blue colour
universal indicator or litmus paper
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. -- Tap water will not cause any colour change when tested with litmus paper. Blue litmus paper remains blue, the same goes for red litmus paper. Although the above statement says that tap water is slightly basic, the pH is still close to neutral and will not be significant enough to cause a colour change for the litmus paper.
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Water provides H+/ OH- ions for the dry gas(to be tested with litmus) to show its acidic/alkaline nature.
Usually the ph is tested with a phenol red indicator but litmus paper can be used
The acidity or alkalinity of a solution, pH indicator.
Go to an optician
a litmus tells us if a substance is acidic or alkaline an acid will turn red litmus paper blue and an alkali will turn blue litmus paper red. if an unknown substance is tested with litmus and the colour did not change, then the substance is said to be neutral or it can be simply water. note that water is needed for acids to show its acidic properties........