WILL GIVE BRAINIEST When calcium metal (Ca) reacts with oxygen gas (O2), it produces the ionic compound calcium oxide (CaO). Write a balanced equation for this reaction. Then explain if this process meets the requirements to be considered a redox reaction.

its first and third is your answer i did the qustion the fourth isnt right

a). in this case, dh> 0 and sd> 0. if t becomes larger, the term "-tds" will become more negative. at some point, it is possible that -dts will be more negative than the dh is positive, and the reaction will become spontaneous. this is probably the correct answer, but you should look at all of the other possibilities and make sure of that.