0
What else can I help you with?
Does changes in a state of matter involve a physical change?
Yes, changes in state of matter involve physical changes because the substance retains its chemical composition. The change is simply a rearrangement of particles due to differences in energy levels or intermolecular forces, rather than a chemical reaction.
Write 3 differences between chemical and physical change?
Okay now here goes in a physical change no chemical reaction takes place. in chemical change chemical reactions take place. A physical change is reversible but a chemical change is not.In a physical change no new substance is formed(A+B=B) in a chemical change new substances are formed(A+B=C)
When energy is absorbed or released is it chemical or physical change?
When energy is absorbed or released, it can be associated with both chemical and physical changes. Chemical changes typically involve the breaking or forming of bonds between atoms, resulting in energy changes, while physical changes involve altering the state or arrangement of molecules without affecting their chemical composition, which can also result in energy absorption or release.
Does every physical change involve energy transformation?
Indeed it does!
Is energy involved in all changes?
yes all changes involve exchange in energy
What is an energy change?
An energy change refers to the conversion or transfer of energy from one form to another within a system. It can involve processes such as potential energy converting to kinetic energy or electrical energy converting to heat energy. Energy changes play a fundamental role in the functioning of physical systems and processes.
Is it physical or chemical change when dough becomes bread?
The transformation of dough into bread involves both physical and chemical changes. The physical changes include the expansion of the dough during baking due to the release of gases, while the chemical changes involve the reactions between proteins and starches in the dough leading to the formation of a stable bread structure.
Is it correct to say the chemical changes are not reversible but physical changes are?
yes it is correct because chemical energy means you can't change something back like paper if you burned that paper you can't change it back but if you had that paper and you ripped it you can glue it back you can fix it that is physical energy when you can put something back together so yes you can say that.
What are the similarities between chemical and physical changes?
Both chemical and physical changes involve a transformation of matter. In physical changes, the substance's chemical composition remains the same, while in chemical changes, new substances are formed as a result of a chemical reaction. Both types of changes involve the absorption or release of energy.
Good and bad effects of physical and chemical change?
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.
Why do reactions always involve a change in energy?
Chemical bonds always break in chemical reactions, causing changes in energy.
Can chemical reactions have physical changes?
No, chemical reactions involve changes in the chemical composition of substances, while physical changes involve changes in the physical state or appearance of a substance without altering its chemical composition.
