Question

answer in brief

What are the characteristics of a chemical change?
al reacti​

Answer 1

Answer:

change in physical and chemical properties

one or more new substances are formed

it is permanent and generally irreversible change

change in energy takes place

Explanation:

the above 4 points are characteristics of a chemical change

Answer 2

Answer:

ᏟᎻᎪᎡᎪᏟͲᎬᎡᏆՏͲᏆᏟՏ ϴҒ ᏟᎻᎬᎷᏆᏟᎪᏞ ᏟᎻᎪΝᏀᎬ

◐ ᴛʜᴇʀᴇ ᴍᴀʏ ʙᴇ ᴀ ᴄʜᴀɴɢᴇ ɪɴ ᴄᴏʟᴏᴜʀ

◐ ᴇᴠᴏʟᴜᴛɪᴏɴ ᴏꜰ ᴀ ɢᴀꜱ ᴏʀ ᴇꜰꜰᴇʀꜱᴄᴇɴᴄᴇ ᴍᴀʏ ʙᴇ ᴏʙꜱᴇʀᴠᴇᴅ .

◐ ᴀ ᴘʀᴇᴄɪᴘᴛᴀᴛᴇ ᴍᴀʏ ʙᴇ ꜰᴏʀᴍᴇᴅ.

◐ ʜᴇᴀᴛ ᴍᴀʏ ʙᴇ ɢɪᴠᴇɴ ᴏᴜᴛ ᴏʀ ᴏʙꜱᴇʀᴠᴇᴅ .