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What do we call substances that change color depending on the pH the solution they are in?
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A change in color when two solutions are mixed together is a clue that what has taken place?
A change in the color of a solution is a sign thatthere is a chemical change happening. A chemical change happens when two substances combine forming another substance. It can also happen when two or more substances decompose.
Why use phenolphthalein in ester hydrolysis?
Because depending on the pH the phenolphtalein solution change the color.
Why do indicators in chemistry change color when placed in different substances?
The indicators which change color is litmus paper strips.
When two white compounds are mixed in a solution a yellow solid forms What kind of reation has taken place?
A chemical reaction, because when the two substances were combined a color change and a precipitate formation both occured.
Why do some plant materials change color in the presence of acidic or basic substances?
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.
What are acid base indicators?
These indicators are substances which change their color depending upon acidity/basicity of the solution.
Are substances that change color with respect to the acidity or basicity of a solution?
These substances are called pH indicators.
A change in color when two solutions are mixed together is a clue that what has taken place?
A change in the color of a solution is a sign thatthere is a chemical change happening. A chemical change happens when two substances combine forming another substance. It can also happen when two or more substances decompose.
What is acid-base indicators?
These indicators change the color depending on the pH of the solution.
What will change color in the presence of an acid or a base?
pH indicators change the color depending upon acidity or basicity.
What is compound that can change color depending on conditions such as pH?
They are comonly known as "indicators" as the color change is useful for indicating what the pH of a solution is.
What is A compound that can reversible change color depending on conditions such as pH?
They are comonly known as "indicators" as the color change is useful for indicating what the pH of a solution is.
Why use phenolphthalein in ester hydrolysis?
Because depending on the pH the phenolphtalein solution change the color.
Why do indicators in chemistry change color when placed in different substances?
The indicators which change color is litmus paper strips.
What color does red cabbage juice change depending on the pH?
Cabbage contain Anthocyanins called Cyanidin. These are responsible for changing color with pH. Changing the pH affects the shape of the molecule which, in turn, changes its wavelength absorption.
Are all substances the same before and after burning?
No, some substances change their whole form and others just change their color and shape.
What colour does universe indicator with antacid solution?
Antacids are basic substances: a blue color.
