Question

Define the following terms.
(a) Reversible change
(b) Chemical change
(c) Physical change​

Answer 1

Answer:

A reversible change is a chemical change where no new materials are created and the original material can be recovered. Examples include freezing water to make ice or melting chocolate.

chemical change happens when one chemical substance is transformed into one or more different substances, such as when iron becomes rust. Chemical changes occur through the process of chemical reactions, and the resulting substances have different properties because their atoms and molecules are arranged differently.

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.

hope it's help you!!!!!

Answer 2

ʀᴇᴠᴇʀꜱɪʙʟᴇ ᴄʜᴀɴɢᴇ:-

ᴀ ᴄʜᴀɴɢᴇ ᴡʜɪᴄʜ ᴄᴀɴ ʜᴀᴩᴩᴇɴ ʙᴀᴄᴋᴡᴀʀᴅ, ᴛʜᴀᴛ ɪꜱ, ᴄᴀɴ ʙᴇ ʀᴇᴠᴇʀꜱᴇᴅ ɪꜱ ᴄᴀʟʟᴇᴅ ᴀ ʀᴇᴠᴇʀꜱɪʙʟᴇ ᴄʜᴀɴɢᴇ.

ᴄʜᴇᴍɪᴄᴀʟ ᴄʜᴀɴɢᴇ:-

ᴅᴜʀɪɴɢ ᴀ ᴄʜᴇᴍɪᴄᴀʟ ᴄʜᴀɴɢᴇ, ꜱᴜʙꜱᴛᴀɴᴄᴇꜱ ᴀʀᴇ ᴄʜᴀɴɢᴇᴅ ɪɴᴛᴏ ᴅɪꜰꜰᴇʀᴇɴᴛ ꜱᴜʙꜱᴛᴀɴᴄᴇꜱ. ᴀɴᴏᴛʜᴇʀ ᴡᴏʀᴅꜱ, ᴛʜᴇ ᴄᴏᴍᴩᴏꜱɪᴛɪᴏɴ ᴏꜰ ᴛʜᴇ ꜱᴜʙꜱᴛᴀɴᴄᴇ ᴄʜᴀɴɢᴇꜱ.

ᴩʜyꜱɪᴄᴀʟ ᴄʜᴀɴɢᴇ:-

ᴡʜᴇɴ ᴀ ꜱᴜʙꜱᴛᴀɴᴄᴇ ᴜɴᴅᴇʀɢᴏᴇꜱ ᴀ ᴩʜyꜱɪᴄᴀʟ ᴄʜᴀɴɢᴇ, ɪᴛꜱ ᴄᴏᴍᴩᴏꜱɪᴛɪᴏɴ ʀᴇᴍᴀɪɴꜱ ᴛʜᴇ ꜱᴀᴍᴇ ᴅᴇꜱᴩɪᴛᴇ ɪᴛꜱ ᴍᴏʟᴇᴄᴜʟᴇꜱ ʙᴇɪɴɢ ʀᴇᴀʀʀᴀɴɢᴇᴅ.

❤️ʜᴏᴩᴇ ᴛʜɪꜱ ʜᴇʟᴩᴇᴅ yᴏᴜ❤️