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A resulting new product with different properties, either physical, chemical or both. A chemical change can only be reversed by anoither chemical change.
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What is always a characteristic of a chemical change but not always a characteristic of a physical change?
When a chemical change takes place, the chemical structure of particles involved changes (i.e. one or more new substances are formed). In a physical change, the physical state of the particles involved changes (e.g. a solid melts and becomes a liquid). The chemical structure of the particles does not change, and no new substance is formed.
Which is not a characteristic of chemical equilibrium?
The ONLY characteristics of an equilibrium are:sort of reactants and products involvedconcentration of all components in the continuous phasetemperatureThe others are non-characteristic
Are all physical changes accompanied by a chemical change?
A physical change is a change in chemical composition. A physical change is a change where chemical composition is not altered. Not all chemical changes are accompanied by a physical change, but some are. The same is true for the reverse.
Is making jam chemical or physical changes?
Making jam involves both chemical and physical changes. Chemical changes occur when the fruit's natural sugars break down during cooking, leading to caramelization and the creation of new complex flavors. Physical changes occur when the mixture thickens as pectin molecules form a gel-like structure to give the jam its characteristic texture.
Why is Wood burns to form black charcoal a chemical change?
It changes properties.Physical Changes:Physical changes are changes in the appearance but not in the chemical properties. Some physical changes can be undone so the item can be put back to almost its past form.Chemical Changes:Chemical changes are the changes in chemical properties. Chemical changes also change in appearance and/or leave behind traces to prove that a chemical change occurred. Chemical changes create a new substance when they happen, e.g., cooking an egg. Chemical changes cannot be undone as the molecules, patterns and properties have been changed.How to tell them apart:The way to tell the difference between chemical and physical changes is by the changes that it went through. There may be clues that a chemical change appeared because of sound, light, gas production or an odour. A physical change does not involve any of these.
What are characteristics do all chemical changes have?
All chemical changes involve the formation of new substances with different properties. They typically involve changes in the arrangement of atoms and the breaking and forming of chemical bonds. Chemical changes are often irreversible and are accompanied by changes in energy.
What is a characteristic of a chemical equilibrium but not physical equilibrium?
Chemical equibrium can involve changes in chemical properties.
Are all physical changes accompanied by chemical changes?
Not all chemical changes are accompanied by a visible physical change. Most chemical changes however will be accompanied by a physical change.
What is always a characteristic of a chemical change but not always a characteristic of a physical change?
When a chemical change takes place, the chemical structure of particles involved changes (i.e. one or more new substances are formed). In a physical change, the physical state of the particles involved changes (e.g. a solid melts and becomes a liquid). The chemical structure of the particles does not change, and no new substance is formed.
Are chemical changes irreversible If yes then what about the chemical reactions that are reversible Don't we say that all chemical reactions are chemical changes?
some chemical changes can be reversed but they are hard to reverse usually
Which is not a characteristic of chemical equilibrium?
The ONLY characteristics of an equilibrium are:sort of reactants and products involvedconcentration of all components in the continuous phasetemperatureThe others are non-characteristic
Why are all irreversible changes are chemical changes?
Irreversible changes are changes which can not be turned back yo normal. These are chemical changes because the particles of the material have changed completely.
Are all physical changes accompanied by a chemical change?
A physical change is a change in chemical composition. A physical change is a change where chemical composition is not altered. Not all chemical changes are accompanied by a physical change, but some are. The same is true for the reverse.
Which one is not an example of a chemical change Leaves on trees changing color A cake baking Food being digested All are examples of chemical changes?
All are examples of chemical changes
Do characteristic properties change when sample changes?
Characteristic properties of a substance do not change when the sample changes. These properties, such as melting point, boiling point, density, and chemical reactivity, are inherent to the substance itself and remain constant regardless of the size or form of the sample.
What characteristic of minerals is not a characteristic of mineraloids?
One key characteristic that is not a characteristic of mineraloids is definite chemical composition. While minerals have a specific chemical composition, mineraloids lack a precise chemical formula or have variable compositions.
Is making jam chemical or physical changes?
Making jam involves both chemical and physical changes. Chemical changes occur when the fruit's natural sugars break down during cooking, leading to caramelization and the creation of new complex flavors. Physical changes occur when the mixture thickens as pectin molecules form a gel-like structure to give the jam its characteristic texture.
