Question

what are the characteristics of a chemical change ?​

Answer 1

Answer:

Color Change.

Production of an odor.

Change of Temperature.

Evolution of a gas (formation of bubbles)

Precipitate (formation of a solid)

Answer 2

Explanation:

sᴏᴍᴇ ᴄʜᴀʀᴀᴄᴛᴇʀɪsᴛɪᴄs ᴏғ ᴄʜᴇᴍɪᴄᴀʟ ᴄʜᴀɴɢᴇs ᴀʀᴇ :

1.ᴀ ɴᴇᴡ sᴜʙsᴛᴀɴᴄᴇ ɪs ғᴏʀᴍᴇᴅ.

2.ɪᴛ ɪs ᴀ ᴘᴇʀᴍᴀɴᴇɴᴛ ᴄʜᴀɴɢᴇ.

3.ᴛʜᴇ ᴄᴏᴍᴘᴏsɪᴛɪᴏɴ ᴏғ ɴᴇᴡ sᴜʙsᴛᴀɴᴄᴇ ᴄʜᴀɴɢᴇs.

4.ɪᴛ ɪs ɪʀʀᴇᴠᴇʀsɪʙʟᴇ.

5.ʜᴇᴀᴛ ᴏʀ ʟɪɢʜᴛ ᴇᴠᴏʟᴠᴇᴅ ᴏʀ ᴀʙsᴏʀʙᴇᴅ ᴅᴜʀɪɴɢ ᴄʜᴀɴɢᴇ.

hope it helps

thanks

llitzsanull ♥️