Homework Help: proofread chemistry

Posted by John on Saturday, March 8, 2008 at 10:01pm.

write the formulas for the following compounds
Sodium chlorate i put NaCl
Lead (II) phosphate i put Pb2P
For Magnesium hydrogen carbonate i had no clue!
then it stats state the number of electrons lost or gained in forming each of these Ions. I didnt understand the question but they were
Mg2+
Ca2+
Br- and Ag+
then it says name each ions in the question and tell whether they are anions or cataions
for Mg2+ i put cation
for Ca2+ i put cation
for Br- i put anion
and for Ag+ i put cation

thanks in advance

proofread chemistry - gamacmua, Saturday, March 8, 2008 at 10:07pm
most of them are true... except for question with polyatomic ion

Sodium chlorate = NaClO3 (chlorate is a polyatomic ion)
Lead(II) phosphate = Pb3(PO4)2
Magnesium hydrogencarbonate =Mg(HCO3)2
*** you need to review your polyatomic ion)
proofread chemistry - ~christina~, Saturday, March 8, 2008 at 10:10pm
sodium chlorate: NaClO3
lead II phosphate: Pb3(PO4)2

Magnesium => Mg
Hydrogen carbonate=> HCO3

since in group 2 (Mg)

then Mg(HCO3)2
- proofread chemistry - John, Saturday, March 8, 2008 at 10:16pm
  ok but what about the rest of the questions?
  - proofread chemistry - ~christina~, Saturday, March 8, 2008 at 10:30pm
    then it stats state the number of electrons lost or gained in forming each of these Ions. I didnt understand the question but they were
    Mg2+ so since it's 2+ then it has lost 2 electrons
    Ca2+ 2 as well
    Br-gained 1 e- and Ag+ since it's + then it obviously lost 1 e-
    then it says name each ions in the question and tell whether they are anions or cataions
    for Mg2+ i put cation
    for Ca2+ i put cation
    for Br- i put anion
    and for Ag+ i put cation
    all these are okay

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