Two solutions are mixed and a solid begins to appear
a chemical reaction is occurring between the two substances. The release of light is often a sign of energy being produced as a result of the reaction.
Some indicators of a chemical reaction are:- 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 chemiluminescence - formation of new compounds
You might be referring to the chemical elements. However, we are now aware that there are 96. For more information you might wish to consult the wikipedia page about chemical elements.
chemical change-change in the chemicalchemical property-property(physical trait)of the chemicalor something close to that u might want to check...
chemical change-change in the chemicalchemical property-property(physical trait)of the chemicalor something close to that u might want to check...
there are mainly two ways that indicate that a chemical change has taken place. These ways are the physical properties (the way things look, without changing the chemical makeup of a substance) are different, and the chemical properties (the way the substance reacts with other substances) are different.
water boils, it make sound. is that a chemical change??? P.S why use wikianswer?
Formation of bubbles or gas: Gas evolution can indicate a chemical reaction is occurring. Change in color: A sudden change in color could be a sign of a reaction, such as a shift from clear to cloudy. Temperature change: If the reaction generates heat (exothermic) or absorbs heat (endothermic), it can be an indication that a chemical reaction is taking place.
Oxidation typically involves a chemical change where a substance loses electrons. While you might observe physical changes associated with oxidation, such as a change in color or texture of the material, the process itself is primarily a chemical change.
Indicates a model change from the original. The original might be a Model 1911. When it has a design change, it is now a Model 1911A1.
Two solutions are mixed and a solid begins to appear
You can determine if a chemical change has occurred by looking for signs such as a change in color, formation of a precipitate, evolution of gas, or release of heat or light. Additionally, if the chemical composition of the substance has been altered, it is likely that a chemical change has taken place.