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Why does this indicate that a chemical reaction might have occurred?
Wiki User
∙ 10y ago
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 chemiluminiscence
Wiki User
∙ 10y ago
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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?
This is a chemical change.
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
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
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 should conclude that a chemical reaction has taken place. Change of color is a typical sign that a chemical reaction has occurred.
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.
The production of light when two substances are mixed might indicate that?
This is a chemical change.
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 might release energy during a chemical reaction?
a cake anything cooked
What evidence of a chemical reaction might you see by rusting of an iron nail?
oxidation
Do catalyst produce chemical reactions?
yes chemical reactions in order to induce a chemical reaction that might normally take a long time
How would you determine if a chemical change has occurred?
There are a few ways... 1) the identity of the substance changed 2) there was a gas released (fizzing, bubbles, etc.) 3) color change (even though color change is a physical property, it might be caused by a chemical reaction)
What type of chemical reaction is this caCO3 CaO CO2?
Decomposition Reaction
