Question

write the definition of chemical change in chemistry ​

Answer 1

hey mate here is your answer....

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..

hope this answer helps you.....

Answer 2

Answer:

ᴍɪss ᴍᴀsᴛᴇʀᴍɪɴᴅ~❤️

ᴄʜᴇᴍɪᴄᴀʟ ᴄʜᴀɴɢᴇs ᴏᴄᴄᴜʀ ᴡʜᴇɴ ᴀ sᴜʙsᴛᴀɴᴄᴇ ᴄᴏᴍʙɪɴᴇs ᴡɪᴛʜ ᴀɴᴏᴛʜᴇʀ ᴛᴏ ғᴏʀᴍ ᴀ ɴᴇᴡ sᴜʙsᴛᴀɴᴄᴇ, ᴄᴀʟʟᴇᴅ ᴄʜᴇᴍɪᴄᴀʟ sʏɴᴛʜᴇsɪs ᴏʀ, ᴀʟᴛᴇʀɴᴀᴛɪᴠᴇʟʏ, ᴄʜᴇᴍɪᴄᴀʟ ᴅᴇᴄᴏᴍᴘᴏsɪᴛɪᴏɴ ɪɴᴛᴏ ᴛᴡᴏ ᴏʀ ᴍᴏʀᴇ ᴅɪғғᴇʀᴇɴᴛ sᴜʙsᴛᴀɴᴄᴇs. ᴛʜᴇsᴇ ᴘʀᴏᴄᴇssᴇs ᴀʀᴇ ᴄᴀʟʟᴇᴅ ᴄʜᴇᴍɪᴄᴀʟ ʀᴇᴀᴄᴛɪᴏɴs ᴀɴᴅ, ɪɴ ɢᴇɴᴇʀᴀʟ, ᴀʀᴇ ɴᴏᴛ ʀᴇᴠᴇʀsɪʙʟᴇ ᴇxᴄᴇᴘᴛ ʙʏ ғᴜʀᴛʜᴇʀ ᴄʜᴇᴍɪᴄᴀʟ ʀᴇᴀᴄᴛɪᴏɴs.