can someone check these for me ?
Lead(IV)nitrate-- Pb(No3)4
Aluminumoxide-- Al2O
Ammoniumphosphate-- NH4(Po4)
Perchloric Acid-- Clo4
Copper(II)bromide-- CuBr2
Thankss!
yes, no, no, no, yes.
Ugh.
Why is 2,3, and 4 wrong?
Oxidation state of Al is +3, O is -2.
NH4 is +1, PO4 is -3
HClO4 is perchloric acid
The series is
HClO4
HClO3
HClO2
HClO
HCl
so im still confused.
The answer would be then, Al3O2?
and
NH4(Po4)3
Why is methyl and ethyl groups called hydrocarbons
You should post your questions under Post a New Question located at the top of the page. Posting as a piggy back on another post often gets ignored if we don't go back to look to see if there is a follow up question. methyl and ethyl groups are CH3 and CH3CH3. The have hydrogen and carbon; thus they are hydrocarbons.
Yes, you are. One was of checking to see if your answer is correct is to add up the oxidations states of everything. All compounds must add to zero. Does Al3O2 add to zero. Al is 3x+3=+9 and O is 2 x -2 = 4. Nope. Doesn't add to zero. Here is how you do it.Write AlO
Above Al write +3. Above O write -2.
For the subscripts, draw an X starting at the top of the l and ending at the bottom of the O. The other leg of the X starts at the top of the O and moves to the left and downward to the bottom of the l. Now, just place those numbers at the bottom of the two legs of the X. Thus, Al2O3. Ignore the signs. Check it?
Al = 2x+3 = +6.
O = 3x -2 = -6
+6 and -6 = 0. Voila!
NH4 is +1
PO4 is -3
(NH4)3PO4 or to make it look nicer, if I can do it,
(NH4)3PO4
Certainly! I can help you validate the formulas you have provided.
To determine the correctness of chemical formulas, we must ensure that the subscripts are written properly. I will go through each formula and provide feedback:
1. Lead(IV)nitrate: The correct formula for lead(IV) nitrate is Pb(NO3)4. It consists of one lead atom (Pb) bonded to four nitrate ions (NO3).
2. Aluminum oxide: The correct formula for aluminum oxide is Al2O3. It consists of two aluminum atoms (Al) bonded to three oxygen atoms (O).
3. Ammonium phosphate: The correct formula for ammonium phosphate is (NH4)3PO4. It consists of three ammonium ions (NH4) and one phosphate ion (PO4).
4. Perchloric acid: The correct formula for perchloric acid is HClO4. It consists of one hydrogen ion (H+) and one perchlorate ion (ClO4-).
5. Copper(II) bromide: The correct formula for copper(II) bromide is CuBr2. It consists of one copper ion (Cu2+) bonded to two bromide ions (Br-).
Overall, four out of the five formulas you provided appear to be correct. The correct formulas are:
- Lead(IV)nitrate: Pb(NO3)4
- Aluminum oxide: Al2O3
- Ammonium phosphate: (NH4)3PO4
- Perchloric acid: HClO4
- Copper(II) bromide: CuBr2
I hope this clarifies and validates the formulas for you!