Question

Metal compound a reacts with dilute hydrochloric acid to produce effervescence of the gas involved extinguisher a burning candle write a balanced chemical equation for the reaction if one of the compound formed is calcium chloride

Answer 1

When calcium carbonate reacts with Hcl it forms calcium chloride,water and CO2 which is used as extinguisher for a burning candle.

CacO3+2HCl->CuCl2+CO2+H2O

Answer 2

here is ur answer-⏬⏬

ᴛʜᴇ ɢᴀs ᴇᴠᴏʟᴠᴇᴅ ᴇxᴛɪɴɢᴜɪsʜᴇs ᴀ ʙᴜʀɴɪɴɢ ᴄᴀɴᴅʟᴇ. ᴡʀɪᴛᴇ ᴀ ʙᴀʟᴀɴᴄᴇᴅ ᴄʜᴇᴍɪᴄᴀʟ ᴇϙᴜᴀᴛɪᴏɴ ғᴏʀ ᴛʜᴇ ʀᴇᴀᴄᴛɪᴏɴ ɪғ ᴏɴᴇ ᴏғ ᴛʜᴇ ᴄᴏᴍᴘᴏᴜɴᴅs ғᴏʀᴍᴇᴅ ɪs ᴄᴀʟᴄɪᴜᴍ ᴄʜʟᴏʀɪᴅᴇ. ᴀɴsᴡᴇʀ: ᴡʜᴇɴ ᴄᴀʟᴄɪᴜᴍ ᴄᴀʀʙᴏɴᴀᴛᴇ ʀᴇᴀᴄᴛs ᴡɪᴛʜ ʜʏᴅʀᴏᴄʜʟᴏʀɪᴄ ᴀᴄɪᴅ, ɪᴛ ᴘʀᴏᴅᴜᴄᴇs ᴄᴀʀʙᴏɴ ᴅɪᴏxɪᴅᴇ ɢᴀs ᴡɪᴛʜ ᴇғғᴇʀᴠᴇsᴄᴇɴᴄᴇ.

^_^