Question

while heating a liquid in a test tube , the mouth of the test tube should be :​

Answer 1

Answer:

Make sure the mouth of the test tube is pointed away from yourself and from anyone else. 3.) Heat gradually and slowly to avoid "bumping".

@anushkasharma

Answer 2

✍️A᭄ɴsᴡᴇʀ✍️

ʜᴏʟᴅ ᴛʜᴇ ᴛᴇsᴛ ᴛᴜʙᴇ ᴀᴛ ᴀɴ ᴀɴɢʟᴇ. ᴘᴏɪɴᴛ ᴛʜᴇ ᴛᴇsᴛ ᴛᴜʙᴇ ᴀᴡᴀʏ ғʀᴏᴍ ʏᴏᴜʀsᴇʟғ ᴀɴᴅ ᴀʟʟ ᴏᴛʜᴇʀ ᴘᴇᴏᴘʟᴇ. ʜᴇᴀᴛ ᴛʜᴇ ᴛᴇsᴛ ᴛᴜʙᴇɢᴇɴᴛʟʏ ғʀᴏᴍ ᴛʜᴇ ᴛᴏᴘ ᴏғ ᴛʜᴇ sᴜʙsᴛᴀɴᴄᴇ ʙᴇɪɴɢ ʜᴇᴀᴛᴇᴅ, ᴀɴᴅ ᴀʟᴡᴀʏs ᴡᴇᴀʀ sᴀғᴇᴛʏ ɢᴏᴏɢʟᴇs.

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