a . The chemical name of vinegar is______________. b . Changes in which only_____________ properties of a substance change are called Physical changes. c . changes in which new substances are formed are called___________ changes. d . Magnesium+ Oxygen _________. e . Copper Sulphate+Iron_________.
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Answer:
b. physical
c. chemical
d. MgO2
e. FeSO4 +Cu2
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ɧɛƖƖơ ɱąɬɛ
________________________
Qᴜᴇsᴛɪᴏɴ :
ᴛʜᴇ ᴄʜᴇᴍɪᴄᴀʟ ɴᴀᴍᴇ ᴏF ᴠɪɴᴇɢᴀʀ ɪs ? ?
ᴀɴsᴡᴇʀ:
ᴀᴄᴇᴛɪᴄ ᴀᴄɪᴅ ( CH₃COOH )
________________________
Qᴜᴇsᴛɪᴏɴ :
ᴄʜᴀɴɢᴇs ɪɴ ᴡʜɪᴄʜ ᴏɴʟʏ_____________ ᴘʀᴏᴘᴇʀᴛɪᴇs ᴏF ᴀ sᴜʙsᴛᴀɴᴄᴇ ᴄʜᴀɴɢᴇ ᴀʀᴇ ᴄᴀʟʟᴇᴅ ᴘʜʏsɪᴄᴀʟ ᴄʜᴀɴɢᴇs.
ᴀɴsᴡᴇʀ:
ᴘʜʏsɪᴄᴀʟ
________________________
Qᴜᴇsᴛɪᴏɴ :
ᴄʜᴀɴɢᴇs ɪɴ ᴡʜɪᴄʜ ɴᴇᴡ sᴜʙsᴛᴀɴᴄᴇs ᴀʀᴇ Fᴏʀᴍᴇᴅ ᴀʀᴇ ᴄᴀʟʟᴇᴅ___________ ᴄʜᴀɴɢᴇs
ᴀɴsᴡᴇʀ:
ᴄʜᴇᴍɪᴄᴀʟ
________________________
Qᴜᴇsᴛɪᴏɴ :
ᴍᴀɢɴᴇsɪᴜᴍ+ ᴏxʏɢᴇɴ _________
ᴀɴsᴡᴇʀ:
ᴍᴀɢɴᴇsɪᴜᴍ ᴏxɪᴅᴇ ( MgO )
________________________
Qᴜᴇsᴛɪᴏɴ :
ᴄᴏᴘᴘᴇʀ sᴜʟᴘʜᴀᴛᴇ+ɪʀᴏɴ_________.
ᴀɴsᴡᴇʀ:
ɪʀᴏɴ sᴜʟᴘʜᴀᴛᴇ +ᴄᴏᴘᴘᴇʀ ( Cu +FeSO₃ )
________________________
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