also if you could answer-2)What charge would an aluminium atom have if it lost three electrons?Or even some word equations-3) Aluminium + Nictric acid -gt;4) potassium hydroxide + sulphuric acid -gt;5) Calcium carbonate + Hydrochloric acid -gt;]6) Aluminium oxide + Sulphuric acid -gt;
Not in the leastHome repairs are just home repairs that you should doDon't try to sneak a 2 for 1 special in or you'll piss her off.
Actually aluminum/metal roofing to fix my barn/studio would be a great gift! My 25th is not for almost 2 years, so I don't think I can wait, darn.
The traditional gift for the 25th anniversary is silverI would look for something small, but not cheesyThings Remembered is a great store and they have lots of anniversary gifts.
I suppose I could see a situation where that would be a good giftFor example, if you and her were fighting over which color siding you should get for the house, and then for your anniversary, you decide to let her have the color she picked out, I think that would be goodOr maybe it was something that she's been complaining about how ugly and beaten down the home looks from the outside, and you make it look brand spanking new, I could see that being goodBut it would have to be an extreme situation like that for that to workIf it's not an extreme case like that, you're probably safer sticking with the more traditional anniversary gifts:-)
Looks a bit like your homework sheetIn general when atoms GAIN electrons they form IONS with NEGATIVE chargesThe negative charge is equal to the number of electrons gainedWhen atoms LOSE electrons they for IONS with POSITIVE chargesThe positive charge is equal to the number of electrons lostYour first question is then pretty easy : O atom gains 2 electrons to form O2- ion Al atom loses 3 electrons to form Al 3+ ionThese word equations are set to get you to understand that Nitric acid makes NITRATES; Sulphuric acid makes SULPHATES; Hydrochloric Acid makes CHLORIDES(the clues are in the acid names!) They also teach general reactionsso 3) Aluminium + Sulphuric acid - Aluminium Sulphate + Hydrogen (general equation Reactive metal + Metal - Salt + Hydrogen ) 4) Potassium Hydroxide (alkali) Sulphuric acid - Potassium Sulphate + Water (general equation Acid + Alkali - Salt + water) 5) Calcium Carbonate + Hydrochloric Acid - Calcium Chloride + Water + Carbon Dioxide (general equation Metal Carbonate + Acid - salt Water + Carbon Dioxide) 6) Aluminium Oxide + Sulphuric Acid Aluminium Sulphate + Water (general equation Metal Oxide/Base + Acid - Salt + Water) I have written out the explanation as you should have in your class notes so you can go through and learn the general rules.These apply to all similar reactions.
