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Physical reactions:
freezing, boiling, evaporation, condensation etc.
Chemical reactions:
eg. heating, baking, decomposition etc.
Physical mixtures - mixtures in which the substances are easy to separate and get back (done by physical reactions)
eg. flour and rice grains - you can sieve them.
Chemical mixtures - mixtures in which the substances are hard to separate and get back (done by chemical reactions)
eg. cakes - u cant get the eggs and other stuff back.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoMixing of 2 liquids form a solution. A solution is just a kind of mixture, so this is not a chemical reaction, it is a physical change only. The result is not a compound, it is a mixture.
Example of a chemical change is burning of paper, where paper(carbon) combines with air (oxygen) to form ash.
Wiki User
∙ 12y ago"Mixing" isn't, but the production of the gas is.
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What is most likely sign that a chemical change has happened?
Two liquids are mixed at room temperature and a gas forms.
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.
Is heat produced when two liquids are mixed a physical change?
No and yes. If the two liquids do not react chemically then its a physical change, called the enthalpy of mixing, heat of mixing, which can be exothermic or endothermic. If the two liquids react then the heat produced would be chemical.
Is separation of 2 liquids by distillation a physical change?
Yes, separation of two liquids by distillation is a physical change. It involves the process of heating a mixture of liquids to vaporize one of the components, and then condensing the vapor back into a liquid form. This process does not involve any chemical reactions or changes in the chemical composition of the substances.
What happens when liquid is mixed with liquids?
If the solid is soluble (can dissolve) then it will dissolve in the liquid and give you a solution.
Is a two clear liquids are mixed and a yellow color forms a chemical change?
Chemical
What is most likely sign that a chemical change has happened?
Two liquids are mixed at room temperature and a gas forms.
which of the following is the most likely sign that a chemical change has happened?
D.Two liquids are mixed at room temperature and a gas forms.
What is precipitate is the name for the that forms when liquids are mixed?
A precipitate may be the product of a chemical reaction.
When you mix 2 liquids and it is warm to touch is it a chemical or physical change?
Can be both or either. 1. When mixed, without chemical reaction, liquids can take or release heat; it is a physical phenomenon. 2. But mixed liquids can react and this chemical reaction can also release heat.
What is the most likely sign that a chemical change has happened?
Two liquids are mixed at room temperature and a gas forms.
Which of the following is the most likely a sign that a chemical change has happened?
D.Two liquids are mixed at room temperature and a gas forms.
A precipitate is the name for the that forms when liquids are mixed?
A precipitate is the name for the _____ that forms when liquids are mixed.
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.
When two clear liquids are mixed and a yellow color forms is it a chemical change?
Yes, a colour change indicates a chemical change.
Is two clear colorless salt solutions are mixed and a bright orange precipitate forms a chemical change?
Yes. A color change is an indicator of a chemical reaction (change).
Is heat produced when two liquids are mixed a physical change?
No and yes. If the two liquids do not react chemically then its a physical change, called the enthalpy of mixing, heat of mixing, which can be exothermic or endothermic. If the two liquids react then the heat produced would be chemical.
