Question

Balanced the following equations:
a) MnO2 + HCl → MnCl2 + Cl2 + H2O
b) NaOH + H2SO4 → Na2SO4 + H2O​

Answer 1

Answer:

ᴛʜᴇ ʀᴇᴘʀᴇꜱᴇɴᴛᴀᴛɪᴏɴ ᴏꜰ ᴀ ᴄʜᴇᴍɪᴄᴀʟ ʀᴇᴀᴄᴛɪᴏɴ ɪɴ ᴛʜᴇ ꜰᴏʀᴍ ᴏꜰ ꜱᴜʙꜱᴛᴀɴᴄᴇꜱ ɪꜱ ᴋɴᴏᴡɴ ᴀꜱ ᴀ ᴄʜᴇᴍɪᴄᴀʟ ᴇQᴜᴀᴛɪᴏɴ. ᴛʜᴇ ᴇQᴜᴀᴛɪᴏɴ ɪɴ ᴡʜɪᴄʜ ᴛʜᴇ ɴᴜᴍʙᴇʀ ᴏꜰ ᴀᴛᴏᴍꜱ ᴏꜰ ᴀʟʟ ᴛʜᴇ ᴍᴏʟᴇᴄᴜʟᴇꜱ ɪꜱ ᴇQᴜᴀʟ ᴏɴ ʙᴏᴛʜ ꜱɪᴅᴇꜱ ᴏꜰ ᴛʜᴇ ᴇQᴜᴀᴛɪᴏɴ ɪꜱ ᴋɴᴏᴡɴ ᴀꜱ ᴀ ʙᴀʟᴀɴᴄᴇᴅ ᴄʜᴇᴍɪᴄᴀʟ ᴇQᴜᴀᴛɪᴏɴ.

(1) ᴍɴᴏ2 + ʜᴄʟ → ᴍɴᴄʟ2 + ʜ2ᴏ + ᴄʟ2

ᴛʜᴇ ʙᴀʟᴀɴᴄᴇᴅ ᴄʜᴇᴍɪᴄᴀʟ ᴇQᴜᴀᴛɪᴏɴ ɪꜱ

ᴍɴᴏ2 + 4 ʜᴄʟ → ᴍɴᴄʟ2 + 2ʜ2ᴏ + ᴄʟ 2

ʙʏ ᴍᴇᴀɴꜱ ᴏꜰ ᴀ ꜱᴛᴏɪᴄʜɪᴏᴍᴇᴛʀʏ, 1 ᴍᴏʟ ᴏꜰ ᴍᴀɴɢᴀɴᴇꜱᴇ ᴅɪᴏxɪᴅᴇ ʀᴇᴀᴄᴛꜱ ᴡɪᴛʜ 4 ᴍᴏʟ ᴏꜰ ʜᴄʟ (ʜʏᴅʀᴏᴄʜʟᴏʀɪᴄ ᴀᴄɪᴅ) ᴛᴏ ꜰᴏʀᴍ 1 ᴍᴏʟ ᴍᴀɴɢᴀɴᴇꜱᴇ ᴄʜʟᴏʀɪᴅᴇ 1 ᴍᴏʟ ᴏꜰ ᴄʜʟᴏʀɪᴅᴇ & 2 ᴍᴏʟ ᴏꜰ ᴡᴀᴛᴇʀ.

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(2)ᴛʜᴇ ʀᴇᴘʀᴇꜱᴇɴᴛᴀᴛɪᴏɴ ᴏꜰ ᴀ ᴄʜᴇᴍɪᴄᴀʟ ʀᴇᴀᴄᴛɪᴏɴ ɪɴ ᴛʜᴇ ꜰᴏʀᴍ ᴏꜰ ꜱᴜʙꜱᴛᴀɴᴄᴇꜱ ɪꜱ ᴋɴᴏᴡɴ ᴀꜱ ᴀ ᴄʜᴇᴍɪᴄᴀʟ ᴇQᴜᴀᴛɪᴏɴ. ᴛʜᴇ ᴇQᴜᴀᴛɪᴏɴ ɪɴ ᴡʜɪᴄʜ ᴛʜᴇ ɴᴜᴍʙᴇʀ ᴏꜰ ᴀᴛᴏᴍꜱ ᴏꜰ ᴀʟʟ ᴛʜᴇ ᴍᴏʟᴇᴄᴜʟᴇꜱ ɪꜱ ᴇQᴜᴀʟ ᴏɴ ʙᴏᴛʜ ꜱɪᴅᴇꜱ ᴏꜰ ᴛʜᴇ ᴇQᴜᴀᴛɪᴏɴ ɪꜱ ᴋɴᴏᴡɴ ᴀꜱ ᴀ ʙᴀʟᴀɴᴄᴇᴅ ᴄʜᴇᴍɪᴄᴀʟ ᴇQᴜᴀᴛɪᴏɴ.

ᴛʜᴇ ɢɪᴠᴇɴ ᴇQᴜᴀᴛɪᴏɴ ɪꜱ

ɴᴀᴏʜ + ʜ2ꜱᴏ4→ ɴᴀ2ꜱᴏ4 + ʜ20

ᴛʜᴇ ʙᴀʟᴀɴᴄᴇᴅ ᴄʜᴇᴍɪᴄᴀʟ ᴇQᴜᴀᴛɪᴏɴ ɪꜱ

2ɴᴀᴏʜ + ʜ2ꜱᴏ4→ ɴᴀ2ꜱᴏ4 + 2ʜ20