chemical changes
No Physical changes are state changes such as freezing, melting, evaporation, condensation, boiling. Physical changes do not produce "new" substances. Lighting a match would be an example of a chemical change in which the substances on the match, and eventually the wood or paper of the match are chemically altered to produce water, carbon dioxide, and other "new" compounds.
Reactants are the substances that are present at the start of a chemical reaction and are consumed in the process to produce the products. They undergo chemical changes or interactions to form new substances during the reaction.
change into new substances
Chemical changes involve the breaking and forming of chemical bonds, resulting in the creation of new substances with different chemical properties. Examples include burning wood to produce ash, or combining hydrogen and oxygen to produce water. These changes are often irreversible and accompanied by a transfer of energy.
No.
The starting substances in a chemical reaction are called reactants. These are the substances that undergo chemical changes to form new substances. Reactants combine and interact during a chemical reaction to produce products.
Physical changes involve changes in appearance, shape, or state of matter without altering the chemical composition. These changes are usually reversible and do not produce new substances. On the other hand, chemical changes involve the formation of new substances with different chemical properties. They are often irreversible and can result in the release of energy, such as in combustion reactions.
Yes, chemical changes involve the formation of new substances with different chemical properties compared to the original substances. Bonds are broken and new bonds are formed to create completely different compounds.
The raw materials for a chemical reaction are called reactants. Reactants are the substances that undergo chemical changes during a reaction to produce new substances called products.
Because it changes the identity of the old substances
After chemical reactions new substances are obtained.
Chemical change.