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Is it a chemical reaction when one substance is added to another substance and it becomes warmer?
Wiki User
∙ 13y ago
Thousand of thousands chemicals can be combined by chemical reactions.
Wiki User
∙ 12y ago
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A chemical change in which a substance becomes more negative?
The chemical change in which a substance becomes more negative could be the ionization of the substance. Means that the substance becomes more negatively charged and that is due to it being ionized. It tends to gain more electrons in order to fill its valence shell to become a stable substance.
What is meant by chemical change?
Chemical ChangesAs opposed to a physical change, chemical changes are present when the substance undergoes a chemical reaction and produces a new substance. A chemical change is a chemical reaction that will always take place for there to be a chemical change. Signs that a reaction is taking place: Formation of gases (bubbles), Color change, production of heat or light, and the formation of a solid. a change in composition and characteristics of matter.new substance maybe formed.original substance and form may be lost.new color and shapeExamplesFermentationPhotosynthesisRusting nailSpoiling milkDigesting food
What happens when you add iodine with water?
the colour becomes brown. there is no chemical reaction
Is the flammability of acetone a physical or chemical property?
A chemical property is any of a material's properties that becomes evident during a chemical reaction; that is, any quality that can be established only by changing a substance's chemical identity. Simply speaking, chemical properties cannot be determined just by viewing or touching the substance; the substance's internal structure must be affected for its chemical properties to be investigated. (Wikipedia)A physical property is any aspect of an object or substance that can be measured or perceived without changing its identity. (Wikipedia)A substance's ability to dissolve in acetone would be classified as a chemical property, since, technically, dissolution is a chemical reaction for which the following generic equation holds:AB -> A+ + B-where A denotes the cation and B denotes the anion. Furthermore, dissolution does change the internal structure of the substance, changing it from a neutral compound to a solution of ions.
If you burn a piece of wood it becomes a different substance. What type of property is this?
Chemical Property
When liquid becomes a water vapor is that a chemical reaction?
no. chemical reaction requires a new substance to be created
How is oxygen destroyed?
Oxygen can be consumed by a chemical reaction, such as fire, in which case the oxygen is not destroyed but becomes part of another substance.
What occurs in a chemical reaction and why are chemical reactions important?
In a chemical reaction, a substance becomes a different substance. Ex. Iron becomes rust when it reacts with oxygen They are important because common life processes require chemical reactions.
How do cars run on chemical reaction?
Your car runs on a chemical reaction because the combustion of gas is actually a chemical reaction. As the fuel turns to a spark or flame, the reaction becomes chemical
What is a chemical reaction is a change in?
One example is when you burn something. Once the substance becomes ashes and smoke it cannot be turned back into the original substance. Another example is rust (iron oxide, I believe). Once something rusts over, it cannot be reversed. Hope this is what you were looking for :)
When a fire cracker explodes is it a chemical change?
It is a chemical reaction because it changes and the change can't be revesed
What is an irreversible change in a chemical reaction?
One example is when you burn something. Once the substance becomes ashes and smoke it cannot be turned back into the original substance. Another example is rust (iron oxide, I believe). Once something rusts over, it cannot be reversed. Hope this is what you were looking for :)
A chemical change in which a substance becomes more negative?
The chemical change in which a substance becomes more negative could be the ionization of the substance. Means that the substance becomes more negatively charged and that is due to it being ionized. It tends to gain more electrons in order to fill its valence shell to become a stable substance.
Definition for chemical property?
chemical property is any of a material's properties that becomes evident during a chemical reaction
What occurs when heated water becomes water vapor?
A chemical reaction
How can you tell a chemical reaction is losing heat?
The apparatus becomes hot.
What is meant by chemical change?
Chemical ChangesAs opposed to a physical change, chemical changes are present when the substance undergoes a chemical reaction and produces a new substance. A chemical change is a chemical reaction that will always take place for there to be a chemical change. Signs that a reaction is taking place: Formation of gases (bubbles), Color change, production of heat or light, and the formation of a solid. a change in composition and characteristics of matter.new substance maybe formed.original substance and form may be lost.new color and shapeExamplesFermentationPhotosynthesisRusting nailSpoiling milkDigesting food
