Write a formula for the compound that forms from barium and the following polyatomic ion.
(a) hydroxide
(b) carbonate
(c) phosphate
(d) hydrogen phosphate
basicaly all i know is that all of these are going to start with Na.
I need major help! thanks:)
I answered this at the original post.
I responded to this at your post below.
ok. thanks. I have a question about it that i posted on my previous post. think u could check it out? thanks
To write the formula for the compound that forms from barium and the given polyatomic ions, you need to use the charges of the ions to balance the charges in the compound.
(a) For hydroxide (OH-) ion, the charge on the hydroxide ion is -1. The charge on barium (Ba2+) is +2. Since the charges must balance out, we need two hydroxide ions to balance the charge of one barium ion. Therefore, the formula for the compound formed from barium and hydroxide is Ba(OH)2.
(b) For carbonate (CO3 2-) ion, the charge on the carbonate ion is -2. The charge on barium is +2. Again, the charges must balance out, so one barium ion is needed to balance the charge of one carbonate ion. Therefore, the formula for the compound formed from barium and carbonate is BaCO3.
(c) For phosphate (PO4 3-) ion, the charge on the phosphate ion is -3. The charge on barium is +2. To balance the charges, we need three barium ions for two phosphate ions. Therefore, the formula for the compound formed from barium and phosphate is Ba3(PO4)2.
(d) For hydrogen phosphate (HPO4 2-) ion, the charge on the hydrogen phosphate ion is -2. The charge on barium is +2. In this case, two barium ions are needed to balance the charge of one hydrogen phosphate ion. Therefore, the formula for the compound formed from barium and hydrogen phosphate is Ba2(HPO4)2.
Remember, when writing the formula for ionic compounds, the positive and negative charges must balance out to achieve overall electric neutrality. Additionally, be cautious when working with polyatomic ions as they have their own charges and formulas.