Question

what is meant by chemical reaction? ??​

Answer 1

$\huge\bold{hEllO \:mAte}$

$\huge\bold{Q→}$$\tiny\bold{what \:is\:meant\:by\: chemical\: reaction}$

ᴄʜᴇᴍɪᴄᴀʟ ʀᴇᴀᴄᴛɪᴏɴ, ᴀ ᴘʀᴏᴄᴇss ɪɴ ᴡʜɪᴄʜ ᴏɴᴇ ᴏʀ ᴍᴏʀᴇ sᴜʙsᴛᴀɴᴄᴇs, ᴛʜᴇ ʀᴇᴀᴄᴛᴀɴᴛs, ᴀʀᴇ ᴄᴏɴᴠᴇʀᴛᴇᴅ ᴛᴏ ᴏɴᴇ ᴏʀ ᴍᴏʀᴇ ᴅɪғғᴇʀᴇɴᴛ sᴜʙsᴛᴀɴᴄᴇs, ᴛʜᴇ ᴘʀᴏᴅᴜᴄᴛs.

sᴜʙsᴛᴀɴᴄᴇs ᴀʀᴇ ᴇɪᴛʜᴇʀ ᴄʜᴇᴍɪᴄᴀʟ ᴇʟᴇᴍᴇɴᴛs ᴏʀ ᴄᴏᴍᴘᴏᴜɴᴅs. ᴀ ᴄʜᴇᴍɪᴄᴀʟ ʀᴇᴀᴄᴛɪᴏɴ ʀᴇᴀʀʀᴀɴɢᴇs ᴛʜᴇ ᴄᴏɴsᴛɪᴛᴜᴇɴᴛ ᴀᴛᴏᴍs ᴏғ ᴛʜᴇ ʀᴇᴀᴄᴛᴀɴᴛs ᴛᴏ ᴄʀᴇᴀᴛᴇ ᴅɪғғᴇʀᴇɴᴛ sᴜʙsᴛᴀɴᴄᴇs ᴀs ᴘʀᴏᴅᴜᴄᴛs.

Answer 2

A chemical reaction happens when one or more chemicals are changed into one or more other chemicals. Examples: iron and oxygen combining to make rust.