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Is cutting up a pear a reversible change or a chemical reaction and why?
Wiki User
∙ 12y ago
You can't glue together a divided pear,if you want it to be valuable but it is not a chemical change..why?-The reason is that a chemical change is followed by entirely new product and what you have done is to seperate the pear molecules,it is still a pear!,and it is a physical change,and you are free to ask more question,because I understand that a pear has life..
Wiki User
∙ 12y ago
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Is cutting your fingernails physical or chemical change?
its a physical change as it is reversible and no new substance is formed
How can chemical change be reserved?
Reversible changes are the chemical reactions that can be reversed, however most are non reversible. The ones that can be reversed is because the reaction can flow both ways.
Is lighting of bulb reversible or irreversible change?
Is the lighting of a bulb a reversible or an irreversible change
A change in which substances change into new substances that is not reversible?
Chemical reaction; this involves the breaking and forming of bonds between atoms which will change the properties of the substance (ex: rusting)
Is cutting your hair a reversible or irreversible physical change?
irreversible
Is digesting a banana a chemical reaction or is a reversible change?
Digesting a banana is a chemical reaction, an ireversible change.
Is boiling water to make tea a reversible change or a chemical reaction?
it's a reversible change
What is a ''non'' reversible reaction?
A reaction which cannot be reversed is called an Irreversible reaction.
Is cutting your fingernails physical or chemical change?
its a physical change as it is reversible and no new substance is formed
Is making crisps from cooking oil and potatoes a reversible change or chemical reaction?
Most cooking processes are chemical reactions. Generally, the reactions are non reversible and once cooked, food cannot be returned to an uncooked state. So, frying potatoes causes a non reversible chemical reaction. The question is not as precise as it might be. Changes can be physical or chemical. They can also be reversible or non reversible but it is important to note that many chemical changes are reversible just as many physical changes are reversible.
Evaporation and condensation are what reaction?
Not chemical reactions, but change of phases
How is making a fire chemical reaction?
A chemical reaction is irreversible, while a physical change is reversible. Fire is a chemical reaction because you can't get back the products.
Is solidification a reversible change re cakes?
no it is not reversible because a chemical reaction has taken place that cannot be reversed.
Is dissecting a banana a chemical reaction or a reversible change?
Dissecting a banana is a physical change, not a chemical reaction. It involves physically separating the banana into smaller pieces, but the chemical composition of the banana doesn't change. A reversible change would be when you freeze the banana slices and then thaw them, as this can be reversed.
Is a forest fire a chemical reaction or reversible reaction?
Firing a forest is a chemical change because you change a wood into ashes and never reverse it back again
Is digesting a banana a chemical reaction or is it a reversible change?
Digestion involve chemical reactions, it is a chemical and mechanical process and is irreversible.
Is toasting of bread a physical or chemical change?
Physical ------------------- It is a chemical change because some compounds from bread are thermally decomposed. The reaction is not reversible.
