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The process by which food substances are chemically changed into simpler forms that can be absorbed is called?
The process by which food substances are chemically changed into simpler forms that can be absorbed is called digestion. This process involves the breakdown of complex molecules into smaller molecules that can be transported and utilized by the body for energy and nutrition.
Is ripping up a paper a chemical or physical change?
Ripping up a paper is a physical change because the paper remains the same chemically before and after the tearing. No new substances are formed during the tearing process.
Is paper a substance or mixture?
Paper is a substance, as it is made up of cellulose fibers derived from plant material that are chemically bonded together during the manufacturing process. It is not a combination of different materials like a mixture would be.
Is crumpling a sheet of paper a physical or chemical?
It's a physical change because it alters the physical state (size, amount, shape, etc) of the object. It is still chemically identical before and after the change, however the physical characteristics have been changed. A chemical change is one that alters the chemical composition of the item, for example the rust on a piece of iron is a chemical change because the new chemical composition is iron-oxide as opposed to iron.
Can chemically changed substances be brought back to their original states?
Chemical reactions are reversible if you apply enough energy, and use the right technique, but even then, information is going to be lost. Here is an example. If you burn a book, the book is converted into carbon dioxide, water vapor, and a small amount of ash. New paper can be made from the carbon dioxide and water vapor if those chemicals are absorbed by growing trees, which are then converted into paper. But the words that were printed on the original book are not going to appear on the new paper. You can print them again, if you wish, but only if that information has been saved separately. The combustion products no longer have the information that was in the book.
What is paper changed into when has been changed chemically by fire?
Ash and smoke.
Is water absorbed by a paper towel a physical or chemical change?
It is a physical change.
How can matter be changed?
Physically or chemically.
What kind of change is burning of paper different from tearing it?
Tearing paper is a simple physical change; you are taking a whole and dividing it without changing its chemical composition. Burning paper is a chemical change; the paper chemically reacts with oxygen in the air in the presence of heat; oxidation.
What scientist that said that atoms can be changed chemically?
Dalton
What is the class of the food that begins to get chemically changed in the mouth?
starches
Which one is olive drab and chemically treated to?
M9 Paper
What is chemically changed the pan the egg or the fat when frying an egg?
The chemical composition was changed during frying.
What changes when you twisted the paper?
The physical shape of the paper changes, but chemically the paper is still the same because nothing was added or taken away from the paper.
What smaller molecules result when carbohydrates are chemically changed by digestion?
they disolve :)
Why is paper a mixture and not a compound?
Paper is a compound because it is made up of two or more components that form a molecule chemically. A mixture refers to different elements being mixed together physically not chemically.
Entity that is not chemically changed in a reaction is a what?
it may be a catalyst, a spectator ion a solvent.
