5: The formula for nitrogen pentoxide is
NO2
N2O
N2O3
N2O5
6: The formula of sodium sulfite is
Na2S
Na2SO2
Na2SO3
Na2SO4
9: The formula for potassium sulfide is
K2S
KHSO3
K2SO3
K2SO4
16: The valence of aluminum is +3. The formula of aluminum sulfate is
Al2S3
AlSO4
Al2(SO4)3
Al2SO
18: The only common radical which has a positive valence is
SO4
NO3
NH4
CrO4
19: In the compound KClO3 the total negative valence is
-2
-4
-3
-6
2007-01-05 04:14:24 · 6 answers · asked by Amber Elizabeth 1 in Science & Mathematics ➔ Chemistry
d,c,d,d,b,c
2007-01-05 04:16:44 · answer #1 · answered by nunnayo b 2 · 2⤊ 2⤋
5. Nitrogen Pentoxide is N2O5
6. Sodium Sulphite is Na2SO3
9. Potassium Sulphide is K2S
16. Aluminium Sulphate Al2(SO4)3
18. Ammonium radical has positive valence is NH4+
19 KClO3 the negative valence is -6
2007-01-05 14:49:42 · answer #2 · answered by lenpol7 7 · 1⤊ 0⤋
1.Formula for Nitrogen Pentoxide=N2O5
2.Formula for Soudium Sulfite = Na2SO3
3.Formula for Potassium Sulfide = K2S
4.Formula for Aluminium sulfate=Al2(SO4)3
5.I guess NO3
6.I guess it's -3
2007-01-05 12:21:21 · answer #3 · answered by Eshwar 5 · 2⤊ 0⤋
I only know the answers to four.
5/ N2O5
6/Na2S?
9/K2S
16/AL2(SO4)3
I hope someone else knows the other answers
Answers 5,9and 16 I am fairly certain of.
Good luck
2007-01-05 12:21:49 · answer #4 · answered by Birdman 7 · 2⤊ 0⤋
So this is how todays children get their qualifications is it. If you had listened to the teacher instead of talking or messing about, you would know the answer to your questions.
2007-01-05 12:27:52 · answer #5 · answered by S 4 · 1⤊ 1⤋
Get help from
2007-01-05 12:21:59 · answer #6 · answered by Anonymous · 0⤊ 1⤋