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Is formation of a precipitate an indication of a chemical change?
Wiki User
∙ 10y ago
One example is the reaction between the aqueous solutions lead nitrate, Pb(NO3)2 and potassium chloride, KCl. They react to form solid (a precipitate) lead chloride, PbCl2, and aqueous potassium nitrate, KNO3. The balanced equation is
Pb(NO3)2(aq) + KCl(aq) ---> PbCl2(s) + KNO3(aq)
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoYes, it is evidence that a chemical change has taken place.
Wiki User
∙ 13y agoYes
If you look on Wikipedia under chemical change, precipitate formation should be under it.
:)
Wiki User
∙ 11y agoformation of precipitate is a chemical reaction
Wiki User
∙ 11y agoAgNO3 (aq)+ NaCl (aq) --> AgCl(s)+ NaNO3 (aq)
Wiki User
∙ 10y agoA precipitate is formed when a product of the reaction is insoluble in the solvent.
Wiki User
∙ 10y agoYes, precipitation is an important indicator for chemical changes.
Wiki User
∙ 6y agoThis is a precipitation reaction and involve the formation of an insoluble compound.
Wiki User
∙ 11y ago2Ca(OH)2(aq)+ 2FeCl3(aq)--->
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Is milk thickening a chemical or physical change?
The thickening is caused by the formation of a precipitate. The formation of a precipitate is a chemical reaction.
What is an example of the formation of a precipitate?
Formation of a precipitate is evidence of a chemical reaction.
What are 3 things that show evidence of a chemical reaction?
- change of color - change of odor - release of a gas - change of the temperature - change of the viscosity - formation of a precipitate - change of general appearance - possible explosion - possible chemiluminiscence - formation of new compounds
How can you be certain that a chemical change has occurred?
Signs of chemical reactions may be: - Gas release - Formation of a precipitate - Change of color - Change of odor - Change of pH - Change of aspect - Change of viscosity - Change of the temperature - Visible formation of new compounds
Is the formation of a solid a chemical change?
Yes, if it occurs as the result of a chemical reaction. For example, if two clear colorless solutions form a white precipitate (solid) when mixed, that would be an example of a chemical change. The formation of a solid from freezing is a physical change.
Is an formation of precipitate an indication of a chemical change?
a
2 colorless liquids produce a white precipitate when they are mixed together is it a chemical change or a physical change?
Chemical change. The formation of a precipitate is one indication that a chemical reaction has taken place.
What are 4 indicators to identify a chemical change has taken place?
Precipitate (solid matter formation), Temperature change, Gas formation, and color change.
What is called formation of is an indication of a chemical change?
You think to the formation of a new compound with a different smell, color, appearance, possible the release of a gas, a precipitate, etc.
Is milk thickening a chemical or physical change?
The thickening is caused by the formation of a precipitate. The formation of a precipitate is a chemical reaction.
What is an example of the formation of a precipitate?
Formation of a precipitate is evidence of a chemical reaction.
What formation is an indicator of chemical change?
precipitate
Is an indication of chemical change?
Not necessarily. If the color change is in the presence of 1 or all of the following:a precipitate (insoluable substance)a gas being produced (bubbling)energy being released or absorbed by chemicals,then it is indicating a chemical change.
What do you look for in a chemical change?
change in color, formation of gas and precipitate ;))
What clues can you use to identify a chemical change?
Characteristics of a chemical change can include a temperature change, a color change, the production of bubbles, the production of a precipitate, and a smell.
How can you know this is a chemical reaction?
Evidence of a chemical reaction include the following: formation of a precipitate formation of a gas change in temperature change in color
What are the six types of evidence for a chemical change?
Types of evidence for chemical change include: A gas is evolved. A precipitate appears or disappears. Heat may be evolved or absorbed. A color change occurs. A substance disappears.
