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What kind of physical evidence might be observed what would indicate that chemical reaction occurred?
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
The production of light when two substances are mixed might indicate that?
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.
What evidences indicate that new substance has formed as a result of a chemical reaction?
how is cutting something in half or a new solution soution=when something is mixed together to make a new solution.this might n
What evidence of a chemical reaction might you see by rusting of an iron nail?
oxidation
What type of chemical reaction is this caCO3 CaO CO2?
Decomposition Reaction
Why does the change in the color of material indicate that a chemical reaction occurred?
A change in color can indicate a chemical reaction has occurred because the reaction might be producing or consuming a colored compound. This means that the chemical composition of the material has changed, leading to a different color being observed. The new color can be a result of the formation of new substances with different properties than the initial materials.
How might a thermometer help you decide if there was any chemical change on mixing iron and charcoal?
For a chemical change to occur, there must be a chemical reaction. A chemical reaction would be either endothermic (uses energy, mostly heat), or exothermic (produces energy, again mostly heat). Any change in temperature of the reactants, as measured by a thermometer, will tell you not only ifa chemical reaction occurred, but also which kind of chemical reaction. No temperature change usually indicates that no reaction has occurred, a decrease in temperature would indicate an endothermic reaction, while an increase in temperature would indicate an exothermic reaction.
What kind of physical evidence might be observed what would indicate that chemical reaction occurred?
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
Explain how you can tell whether a chemical reaction has taken place?
A chemical change or reaction happens if new substances are formed. there may be a change in temperature so the reaction mixture may heat up or cool down. it also might change colour, give off bubbles of gas or fumes and you also might hear fizzing or a gas might explode.
The production of light when two substances are mixed might indicate that?
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.
What might be formed in the chemical reaction H202?
H2O2 is not a chemical reaction, it is Hydrogen Peroxide.
Ty added water to a mixture of two other substances. A short time later the observed that one substance had turned green and another had turned orange What might Ty infer?
Ty can infer that the two original substances in the mixture must have properties that react with water to produce the green and orange colors when exposed to it. This observation suggests a chemical reaction might have occurred between the substances and the water.
Substance produced by a chemical reaction?
A product is a substance formed during a chemical reaction. It is the result of the reaction's course and might have different physical or chemical properties than the reactants.
List three signs that could make you think a chemical reaction might be taking place?
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.
What simple test might be undertaken to check if a chemical reaction produces oxygen?
glowing splint ... if it relights then the chemical reaction produces oxygen.
What evidences indicate that new substance has formed as a result of a chemical reaction?
how is cutting something in half or a new solution soution=when something is mixed together to make a new solution.this might n
What evidence of a chemical reaction might you see by rusting of an iron nail?
oxidation
