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Why do some plant materials change color in the presence of acidic or basic substances?
Wiki User
∙ 9y ago
This is how they react to the substances. Sometimes the substances that are inside the plant will react in an unusual way with the substance.
Wiki User
∙ 9y ago
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What is a change in which one or more substances are converted into two substances?
A chemical change.
Chemical change definition?
A chemical change involves altering substances. One or more substances are changed into different and new substances in this process.
What is the color of purple bougainvillea indicator if the substance is acidic?
acidic - magenta basic - no colour change
Why KMnO4 titration's are carried out only in the presence of dilute H2SO4?
The permanganate ion, MnO4- purple in colour. The sulfuric acid is added to create acidic conditions. In acidic conditions, the MnO4- gets reduced to Mn2+ which is colourless. Therefore, judging by the colour change, we can figure out how much of the potassium permanganate has been used.
Why doesn't water have any effect on litmus paper?
Some substances do not change the color of litmus paper because they are neither acid or nor base. They are called neutral substances.
What will change color in the presence of an acid or a base?
pH indicators change the color depending upon acidity or basicity.
What are substances that change sliding friction to fluid friction?
The materials that, in general, change sliding friction to fluid friction are called lubricants. This class of materials includes oil, grease and the like.
What is an 'indicator reaction'?
---- indicators are substances which change their colour when treated with acidic or basic solutions this reaction of changing their colour is known as indicator reaction ---- ----
Why did the water pH change?
The water pH will change when substances are added to water. If the pH is more than 7 it makes the water basic and if it is less than 7 the water is acidic.
Is a cracked window a physical change?
It is a physical change because it hasn't changed materials it just changed they way it look without adding or taking away substances. It will always be a window.
Does a vegetarian diet cause urine to be acidic?
No noticeably more acidic, no.
What is a change in which one or more substances are converted into two substances?
A chemical change.
What is a substances that undergo a chemical change?
Substances that undergo chemical change are called reactants.
Is it a physical change or a chemical change when substances combine to make new substances with new properties?
Chemical change.
This is a process in which substances change into new substances with different properties?
Chemical Change
Chemical change definition?
A chemical change involves altering substances. One or more substances are changed into different and new substances in this process.
When two substances react what change occurs?
when two substances react a chemical change occurs
