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Doesnt "2+" mean losing two electrons? Isnt it just +? Wont it lose only 1 e? :SBecause it has a positive charge on top!
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Doesnt "2+" mean losing two electrons? Isnt it just +? Wont it lose only 1 e? :SBecause it has a positive charge on top!
Doesnt "2+" mean losing two electrons? Isnt it just +?
[CH3]- has the complete octet
[CH3] has lost one electron/not gained one electron
[CH3]+ has lost one further electron
Thus, a total of two electrons.
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s09_qp_1.pdf Q9 A Q20 C
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s12_qp_12.pdf Q7 D
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s10_qp_12.pdf Q9 D Q25 C
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w12_qp_13.pdf Q22 B Q25 A
YES I NEED EXPLANATION PLEASEYou need explanations for these or are you answering them for someone?
hello
plz help this this question looks easy but i cant solve
here u go ...Which mass of gas would occupy a volume of 3dm3 at 25°C and 1 atmosphere pressure? [1mol of gas occupies 24dm3 at 25°C and 1 atmosphere pressure.]
a)3.2g O2 gas
b)5.6g N2 gas
c)8.0g SO2 gas
d)8.0g SO2 gas
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s09_qp_1.pdf Q9 A Q20 C
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s12_qp_12.pdf Q7 D
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s10_qp_12.pdf Q9 D Q25 C
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w12_qp_13.pdf Q22 B Q25 A
Simple!
1 mol : 24 dm3
x mol : 3 dm3
x= 0.125 mol
Next, you simply see which gas has 0.125 moles.
So the answer is C/D [8g of SO2] whichever isn't the incorrectly written 8g of SO2.
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w09_qp_11.pdf
question 11,19,20,21,23,28,2,30,36,35,31 i know its too much :/ but plz help
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s10_qp_12.pdf Q9 D Q25 C
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w12_qp_13.pdf Q22 B Q25 A
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w11_qp_11.pdf Q14 B Q27 D Q36 A
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_s12_qp_11.pdf Q9 B Q13 C Q18 C Q22A Q38 A
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