2. Why does mercury contained in a measuring cylinder form a convex meniscus?
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ᴍᴇʀᴄᴜʀʏ ᴅᴏᴇs ɴᴏᴛ ᴡᴇᴛ ɢʟᴀss - ᴛʜᴇ ᴄᴏʜᴇsɪᴠᴇ ғᴏʀᴄᴇs ᴡɪᴛʜɪɴ ᴛʜᴇ ᴅʀᴏᴘs ᴀʀᴇ sᴛʀᴏɴɢᴇʀ ᴛʜᴀɴ ᴛʜᴇ ᴀᴅʜᴇsɪᴠᴇ ғᴏʀᴄᴇs ʙᴇᴛᴡᴇᴇɴ ᴛʜᴇ ᴅʀᴏᴘs ᴀɴᴅ ɢʟᴀss. ᴡʜᴇɴ ʟɪϙᴜɪᴅ ᴍᴇʀᴄᴜʀʏ ɪs ᴄᴏɴғɪɴᴇᴅ ɪɴ ᴀ ᴛᴜʙᴇ, ɪᴛs sᴜʀғᴀᴄᴇ (ᴍᴇɴɪsᴄᴜs) ʜᴀs ᴀ ᴄᴏɴᴠᴇx sʜᴀᴘᴇ ʙᴇᴄᴀᴜsᴇ ᴛʜᴇ ᴄᴏʜᴇsɪᴠᴇ ғᴏʀᴄᴇs ɪɴ ʟɪϙᴜɪᴅ ᴍᴇʀᴄᴜʀʏ ᴛᴇɴᴅ ᴛᴏ ᴅʀᴀᴡ ɪᴛ ɪɴᴛᴏ ᴀ ᴅʀᴏᴘ.
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