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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
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∙ 9y ago
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What sensory evidence could be used to argue that a chemical transformation of a substance had occured?
Change in color, odor, temperature, or form; light , heat or sound given off; formation of gasses that often appear as bubbles, formation of precipitate that often sinks to the bottom, the decomposition of organic matter (food rotting), evident creation of a new substance.
What evidence would indicate a new material has been produced?
Properties of the substance will indicate .
What is a new substance that forms as the result of a chemical reaction is a gas?
No, A formation of a gas does not mean a chemical reation
Why is sugar dissolving in tea a chemical reaction?
It isn't. When sugar dissolves it is still the same substance, it's just mixed with the tea. Chemical changes involve the formation of a new substance.
What is one piece of evidence that supports sea floor spreading?
Formation of new ocean/sea floor at the edges or divergence/separation.
What change leads to the formation of a new substance?
Chemical.
How a chemical reaction may determine if a new substance has been formed?
The formation of a new substance can be confirmed by the formation of a precipitate or by changes in colour / smell / texture or by the evolution of gas. Chromatographic techniques can also be used to identify the formation of the new product.
How do scientist study evidence for the formation of rodinia?
They use computer models to show how this new evidence supports formation of a supercontinent long before Pangea.
What is evidence that a chemical change has happened?
A substance changes into a new kind of substance.
Is powdering of sugar a chemical change?
no because chemical change means formation of a new substance but in powdering no new substance is formed
What is the chartiristic of matter that involes the formation of a new substance?
Radio-isotop
Must a new substance be formed when you observe a chemical propery?
The formation of a new substance is the criterion for a chemical change. You can't have a chemical change without the formation of at least one new substance. As you can't observe a chemical property without setting a chemical change in motion, the answer to your question is yes.
What sensory evidence could be used to argue that a chemical transformation of a substance had occured?
Change in color, odor, temperature, or form; light , heat or sound given off; formation of gasses that often appear as bubbles, formation of precipitate that often sinks to the bottom, the decomposition of organic matter (food rotting), evident creation of a new substance.
What is a chemical change said in one sentence?
Any instance in which the chemical formula of a given substance is changed, resulting in the formation of a new substance.
What evidence indicate that a new substance has formed as a result of a chemical reaction?
the recation is right
What evidence would indicate a new material has been produced?
Properties of the substance will indicate .
What is a new substance that forms as the result of a chemical reaction is a gas?
No, A formation of a gas does not mean a chemical reation
