Question

what is a balanced chemical equations and why should chemical equations be balanced

Answer 1

here is some example of balanced equations see:-
 2h+0---> h20
 to  make sure that the equation conforms to the law of conservation of mass the equation must be balanced. A balanced chemical equation
and law of conservation is thing not be created nor be destoryed.

Answer 2

ᴛʜᴇ ᴄʜᴇᴍɪᴄᴀʟ ᴇϙᴜᴀᴛɪᴏɴ ɴᴇᴇᴅs ᴛᴏ ʙᴇ ʙᴀʟᴀɴᴄᴇᴅ sᴏ ᴛʜᴀᴛ ɪᴛ ғᴏʟʟᴏᴡs ᴛʜᴇ ʟᴀᴡ ᴏғ ᴄᴏɴsᴇʀᴠᴀᴛɪᴏɴ ᴏғ ᴍᴀss. ᴀ ʙᴀʟᴀɴᴄᴇᴅ ᴄʜᴇᴍɪᴄᴀʟ ᴇϙᴜᴀᴛɪᴏɴ ᴏᴄᴄᴜʀs ᴡʜᴇɴ ᴛʜᴇ ɴᴜᴍʙᴇʀ ᴏғ ᴛʜᴇ ᴅɪғғᴇʀᴇɴᴛ ᴀᴛᴏᴍs ᴏғ ᴇʟᴇᴍᴇɴᴛs ɪɴ ᴛʜᴇ ʀᴇᴀᴄᴛᴀɴᴛs sɪᴅᴇ ɪs ᴇϙᴜᴀʟ ᴛᴏ ᴛʜᴀᴛ ᴏғ ᴛʜᴇ ᴘʀᴏᴅᴜᴄᴛs sɪᴅᴇ. ʙᴀʟᴀɴᴄɪɴɢ ᴄʜᴇᴍɪᴄᴀʟ ᴇϙᴜᴀᴛɪᴏɴs ɪs ᴀ ᴘʀᴏᴄᴇss ᴏғ ᴛʀɪᴀʟ ᴀɴᴅ ᴇʀʀᴏʀ.