Answer the following questions in one word. Is change of state a physi

1.	Answer the following questions in one word. Is change of state a physical or a chemical change.
Answer» Answer: Physical Change Chemical Change The chemical composition of a substance does not change The chemical composition of a substance does not REMAIN same Easily reversible Not easily reversible No new substance is formed New substances are always formed Melting of ice is an example of physical change Burning of paper is an example of chemical change b. Periodic changes Non periodic changes 1. Events that repeat themselves after a fixed period of time and whose ocurence can be predicted are called periodic changes. The events that do not repeat themselves after regular interval of time are called non periodic changes. 2. Example- ROTATION of earth, revolution of earth, day and NIGHT, seasons etc. Example- natural disasters LIKE earthquake, cyclones etc. c. Natural changes Man made changes 1. The changes which are brought about by nature itselfand are not under the control of humans are called natural changes. The changes which are brought about by humans are called man made changes. 2. Examples- change of season, tides in sea, ageing of plants etc. Explanation: please mark it BRAINLIEST answer and please don't forget to give me a thanks for this answer

Answer the following questions in one word. Is change of state a physical or a chemical change.

Answer»

Answer:

Physical Change

Chemical Change

The chemical composition of a substance does not change

The chemical composition of a substance does not REMAIN same

Easily reversible

Not easily reversible

No new substance is formed

New substances are always formed

Melting of ice is an example of physical change

Burning of paper is an example of chemical change

Periodic changes

Non periodic changes

1. Events that repeat themselves after a fixed period of time and whose ocurence can be predicted are called periodic changes.

The events that do not repeat themselves after regular interval of time are called non periodic changes.

2. Example- ROTATION of earth, revolution of earth, day and NIGHT, seasons etc.

Example- natural disasters LIKE earthquake, cyclones etc.

Natural changes

Man made changes

1. The changes which are brought about by nature itselfand are not under the control of humans are called natural changes.

The changes which are brought about by humans are called man made changes.

2. Examples- change of season, tides in sea, ageing of plants etc.

Explanation:

please mark it BRAINLIEST answer and please don't forget to give me a thanks for this answer