Science, asked by vkashish623, 29 days ago

definition of chemical change & physical change

Answers

Answered by DaLgOnA

Physical changes only change the appearance of a substance, not its chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions...

Answered by alokprajapati362

Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.
Physical changes are changes affecting the form of a chemical substance, but not its chemical composition. Physical changes are used to separate mixtures into their component compounds, but can not usually be used to separate compounds into chemical elements or simpler compounds.

Previous Question

Next Question

Similar questions

Social Sciences, 14 days ago

5. The undigested food in humans is passed out through kidneys rectum Snus...

Biology, 14 days ago

Josh and Adam are two farmers who use different methods of agriculture.As they both were going to grow paddy in their fields, Josh thought of transplanting saplings from a nursery while Adam planned to sow seeds directly into the soil. On the basis of your understanding which method according to you is better and why? Support your answers with reasons.

Math, 14 days ago

factorization plss do it.

English, 29 days ago

2.11 Read the following passage and answer the questions given [3+2=5] below:- Pollution is a term which even kids are aware of these days, it has become so common that almost everyone acknowledges the fact that pollution is rising continuously. The term "Pollution" means the introduction of any foreign substance in something. When we talk about pollution on earth, we refer to the contamination...

Social Sciences, 29 days ago