Question

pure substance can be elements or___​

Answer 1

Yes, in chemistry a pure substance means either an element or a compound. Thus, hydrogen, oxygen, sodium, iron, copper etc. are pure substances; and so are compounds such as water, sugar, ammonia, sodium chloride, methane, ethanol etc. A compound is composed of two or more elements combined in a fixed ratio by mass.

Answer 2

✧Hi mate:

✧ᴘᴜʀᴇ sᴜʙsᴛᴀɴᴄᴇ ɪs ᴀɴ ᴇʟᴇᴍᴇɴᴛs.✧

✧Reason:

✧ᴀ ᴘᴜʀᴇ sᴜʙsᴛᴀɴᴄᴇ ᴛʜᴀᴛ ʜᴀs ᴏɴʟʏ ᴏɴᴇ ᴋɪɴᴅ ᴏғ ᴀᴛᴏᴍ ᴀɴᴅ ᴄᴀɴɴᴏᴛ ʙᴇ ʙʀᴏᴋᴇɴ ɪɴᴛᴏ ᴛᴡᴏ ᴏʀ ᴍᴏʀᴇ sɪᴍᴘʟᴇʀ sᴜʙsᴛᴀɴᴄᴇs ʙʏ ᴘʜʏsɪᴄᴀʟ ᴏʀ ᴄʜᴇᴍɪᴄᴀʟ ᴍᴇᴀɴs ɪs ᴀɴ ᴇʟᴇᴍᴇɴᴛ. ᴛʜᴇʀᴇғᴏʀᴇ, ᴡʜᴇɴ ʏᴏᴜ ʙʀᴇᴀᴋ ᴅᴏᴡɴ ɢᴏʟᴅ, ʏᴏᴜ sᴛɪʟʟ ɢᴇᴛ ɢᴏʟᴅ. ɪᴛ ɪs ᴀɴ ᴇʟᴇᴍᴇɴᴛ.✧

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