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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 else can I help you with?
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.
Can all mixtures be changed back into the substances from which they are created?
Yes, because the substances can be separated apart physically.
Two or more substances that have been combined but not chemically changed.?
A mixture is formed when two or more substances are combined physically but retain their individual properties. The components in a mixture can be separated by physical means, such as filtration or evaporation.
Substances that are changed when they become involved in chemical reactions are?
The substances that are changed in a chemical reaction are known as reactants. These reactants undergo a chemical change or transformation to form new substances called products through the rearrangement of their atoms.
Why is burning magnesium a chemical change?
The magnesium is chemically changed and become magnesium oxide. The oxygen is also chemically changed from an element -oxygen gas, to a solid oxide. To confuse the answer slightly, they are also physically changed. The magnesium changes from a shiny, malleable lustrous metal to a white powdered oxide. The oxygen changes from a colorless gas to a solid oxide.
Mixtures are made of substances that are .?
Chemically changed and can be physically separated into different species.
What is the substance that helps a reaction but isn't chemically changed?
These substances are called catalysts.
Why do substances keep their identities?
Substances keep there identities because they are not chemically changed so they are going to stay the same!
What are two or substances that have been combined but not chemically changed?
maybe mike auto body form
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.
Can substances that have undergone a physical change be changed back to their original state?
Yes
Who is Klaus dating?
Klaus is one of the original vampires. He was brought to Katherine when she was sick by Gurden and he changed her.
What is the process called by which matter is actually changed into new substances?
The process by which matter is changed into new substances is called a chemical reaction. During a chemical reaction, atoms are rearranged to form different molecules with new properties compared to the original substances.
Can all mixtures be changed back into the substances from which they are created?
Yes, because the substances can be separated apart physically.
How can matter be changed?
Physically or chemically.
What is paper changed into when has been changed chemically by fire?
Ash and smoke.
Why is mixing chemicals a chemical change?
The simple act of mixing chemicals can be a physical one if they do not react. For it to be a chemical change a reaction has to occur and it has to have a change in odor, color, temperature, or has the formation of gas or a precipitate to technically have changed chemically.
