Answer:
1. Na2SO4(aq)+C4H6BaO4(aq) --> BaSO4(s) + 2C2H3NaO2(aq)
2. 2Na^+1(aq) + SO4^-2(aq) + 4C^+4(aq) + 6H^+1(aq) + Ba^-2(aq) + 4O^-2(aq) --> BaSO4(s) + 2C^-4(aq) + 2H^+1(aq) + 3Na^+1(aq) + 2O^-2(aq)
3. Ba^+2(aq) + SO4^-2(aq) --> BaSO4(s)
Explanation:
They vibrate abour fixed points.
Since particles have charges that attract each other it stays intact.
Answer:
B. 4.52 X10-9 M
Explanation:
Our goal for this question is to <u>calculate the concentration of hydronium ions</u> produced by water in a vessel with a concentration of hydroxide ions of . So, our first approach can be the <u>ionization reaction of water</u>:
If we write the <u>Keq expression</u> for this reaction we will have:
Now, water is the universal solvent, so, Keq has a special name. In the equilibrium problems for water we have to use <u>"Kw" instead of "Keq"</u>:
From this equation, we know the Kw value () and the concentration of the hydroxide ions ([2.21X10^-^6~M]). If we replace these values into the equation we can solve for :
I hope it helps!
Answer:
NH3
Explanation:
It’s a polyatomic ion. You’ll just have to memorize it!