Question

explain law of conservation of mass and constant proportion with suitable example​

Answer 1

Answer:

Laws of conservation of mass - It states that mass can neither created nor destroyed. The total mass before and after a chemical reaction remains constant. Laws of constant proportion - It states that in a chemical substance the elements are always present in a fixed proportion by their mass.

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Answer 2

Answer:

ʟᴀᴡs ᴏғ ᴄᴏɴsᴇʀᴠᴀᴛɪᴏɴ ᴏғ ᴍᴀss - ɪᴛ sᴛᴀᴛᴇs ᴛʜᴀᴛ ᴍᴀss ᴄᴀɴ ɴᴇɪᴛʜᴇʀ ᴄʀᴇᴀᴛᴇᴅ ɴᴏʀ ᴅᴇsᴛʀᴏʏᴇᴅ. ᴛʜᴇ ᴛᴏᴛᴀʟ ᴍᴀss ʙᴇғᴏʀᴇ ᴀɴᴅ ᴀғᴛᴇʀ ᴀ ᴄʜᴇᴍɪᴄᴀʟ ʀᴇᴀᴄᴛɪᴏɴ ʀᴇᴍᴀɪɴs ᴄᴏɴsᴛᴀɴᴛ.

ʟᴀᴡs ᴏғ ᴄᴏɴsᴛᴀɴᴛ ᴘʀᴏᴘᴏʀᴛɪᴏɴ - ɪᴛ sᴛᴀᴛᴇs ᴛʜᴀᴛ ɪɴ ᴀ ᴄʜᴇᴍɪᴄᴀʟ sᴜʙsᴛᴀɴᴄᴇ ᴛʜᴇ ᴇʟᴇᴍᴇɴᴛs ᴀʀᴇ ᴀʟᴡᴀʏs ᴘʀᴇsᴇɴᴛ ɪɴ ᴀ ғɪxᴇᴅ ᴘʀᴏᴘᴏʀᴛɪᴏɴ ʙʏ ᴛʜᴇɪʀ ᴍᴀss.