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.
Two liquids are mixed at room temperature and a gas forms.
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.
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.
A solid can form when two liquids are mixed together if a chemical reaction occurs that produces a precipitate, a solid substance that forms from the reaction. This can happen when two liquids react to form a new solid compound that is insoluble in the liquid mixture.
precipitate
Chemical
Two liquids are mixed at room temperature and a gas forms.
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 a solid that forms when two liquids are mixed together and certain substances in the liquids react and come out of solution. This solid then separates from the liquid mixture and settles at the bottom of the container.
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.
A solid substance that forms when two liquids are mixed is called a precipitate. This occurs when chemical reaction between the two liquids forms a new solid substance that is insoluble in the mixture.
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.
Yes, if two clear liquids are mixed and a yellow color forms, it is likely a chemical change. A color change is often an indicator of a chemical reaction taking place, indicating that new substances with different properties are being formed.
D.Two liquids are mixed at room temperature and a gas forms.
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.
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