Question

© e.) Ca O₂ ,O ka oxidation number
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Answer 1

Answer:

ᴘʜᴏᴛᴏsʏɴᴛʜᴇsɪs ɪs ᴛʜᴇ ᴘʀᴏᴄᴇss ᴜsᴇᴅ ʙʏ ᴘʟᴀɴᴛs , ᴀʟɢᴀᴇ ᴀɴᴅ ᴄᴇʀᴛᴀɪɴ ʙᴀᴄᴛᴇʀɪᴀ ᴛᴏ ʜᴀʀɴᴇss ᴇɴᴇʀɢʏ ғʀᴏᴍ sᴜɴʟɪɢʜᴛ ᴀɴᴅ ᴛᴜʀɴ ɪᴛ ɪɴᴛᴏ ᴄʜᴇᴍɪᴄᴀʟ ᴇɴᴇʀɢʏ. ʜᴇʀᴇ, ᴡᴇ ᴅᴇsᴄʀɪʙᴇ ᴛʜᴇ ɢᴇɴᴇʀᴀʟ ᴘʀɪɴᴄɪᴘᴀʟ ᴏғ ᴘʜᴏᴛᴏsʏɴᴛʜᴇsɪs ᴀɴᴅ ʜɪɢʜʟɪɢʜᴛ ʜᴏᴡ sᴄɪᴇɴᴛɪsᴛᴀ ᴀʀᴇ sᴛᴜᴅʏɪɴɢ ᴛʜɪs ɴᴀᴛᴜʀᴀʟ ᴘʀᴏᴄᴇss ᴛᴏ ʜᴇʟᴘ ᴅᴇᴠᴇʟᴏᴘ ᴄʟᴇᴀɴ ғᴜᴇʟs ᴀɴᴅ sᴏᴜʀᴄᴇs ᴏғ ʀᴇɴᴇᴡᴀʙʟᴇ ᴇɴᴇʀɢʏ.

Answer 2

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The Oxidation state of Calcium Ca = 2 and for Oxygen O = -2.