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- a change in composition and characteristics of matter.
- new substance maybe formed.
- original substance and form may be lost.
- new color and shape
- Fermentation
- Photosynthesis
- Rusting nail
- Spoiling milk
- Digesting food
Wiki User
∙ 14y ago
A chemical change is a process in which one or more substances are converted into different substances with different chemical properties. This usually involves the breaking and forming of chemical bonds. Examples include rusting of iron and baking a cake.
Wiki User
∙ 12y agoThe definition of a chemical change is that it describes which changes are possible for a substance.
A change in which one or more substances combine or break apart to form new substances.
Wiki User
∙ 16y agoA chemical change is change where one thing becomes something else. In other words, the atoms and molecules combine, break apart (molecules only), or reaarange themselves. For example, when hydrogen gas chemically combines with oxygen gas in a 2:1 ratio, we get water which is something very different than either gases. Another example is burning things. During burning, the compounds in what is being burned combine with oxygen from the atmosphere. Think of paper, if you tear it it's still paper right? But if you burn it, it becomes water, carbon dioxide, smole and ash (carbon). Chemical changes require chemical reactions.
Wiki User
∙ 11y agoA change involving changes in the chemical composition of the reactants.
Wiki User
∙ 13y agoa change which cannot be reverse and which takes internally but chemically is called chemical reaction
such as burning.
Wiki User
∙ 11y agochemical change is changes color,size,shape etc.
Wiki User
∙ 13y agochemical change is the change of one substance into another substance.
Wiki User
∙ 10y agoThe chemical change modify the molecular structure of a substance; a new molecule is formed.
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A change in matter that produces new substances is called?
Chemical change. References: Intro to Matter book.
Is shortening melting a chemical change or chemical property?
Shortening melting is a physical change, not a chemical change or chemical property. When shortening melts, it undergoes a change in state from solid to liquid without any change in its chemical composition.
Is spilling water a chemical change?
No, spilling water is a physical change, not a chemical change. A chemical change involves a change in the chemical composition of a substance, whereas spilling water only changes its location and physical state.
Is Cleaning a painted surface with acid a chemical or physical change?
Chemical broooooooooooooooo niga
Is flettening a chemical change?
No, flattening is a physical change, not a chemical change. A chemical change involves a change in the chemical composition of a substance, whereas flattening simply changes the shape or appearance of the object.
What is meant of '. ' in chemical reaction?
The "." in a chemical reaction represents a phase boundary or a physical state change. It separates reactants from products, indicating a change in state, such as from solid to liquid or gas to aqueous.
Is a odor a physical or chemical change?
AnswerNeither. Odor is not a change at all. Odor is airborne molecules that have a particular smell. A change is a process and odor is not a process. The things which cause odors can be either physical or chemical. For instance, the body odor is caused by chemical changes, but if you open jar of a smelly chemical, that is a physical change (some of the molecules of the chemical are evaporating and are thus airborne).When talking about mixing chemicals and substances, a change in odor is a chemical change.(I assume this is what you meant when you asked is odor a chemical or physical change)
Is stretching wire into copper a physical or chemical change?
Stretching wire into copper is a physical change because the composition of the material remains the same. The rearrangement of copper atoms in the wire does not alter the chemical identity of the substance.
What is meant by the term chemical change Give 2 examples?
A chemical change is a process in which one or more substances undergo a chemical reaction and transform into new substances with different properties. Two examples of chemical changes are rusting of iron (Fe + O2 -> Fe2O3) and burning of gasoline (2C8H18 + 25O2 -> 16CO2 + 18H2O).
Is burning a fire a physical or chemical change?
Burning is a chemical change.
Is a rotting banana a chemical or physical change?
It's a chemical change
Is cellular respiration an example of a physical change or an chemical change?
its a chemical change
is tarnishing a chemical or a physical change?
It is a chemical change.
Is burning chemical change or physical change?
Burning is a chemical change.
Is digestion a physical or chemical change?
Its a chemical change.
When you dye your hair is that physical change or chemical change?
Yes it is a chemical change because color change is an observed change that a chemical change has occurred. So you are very much right. :)
What is an ability of a material to change its chemical makeup?
Chemical property
