B)7
C)8
D)12
更新1:
an unbalanced equation is given. Balance the equation. Then add up the coefficients on both sides of this properly balanced equation and identify the total.
Na3PO4+HCl->NaCl+H3PO4?
回答 (4)
2018-07-31 1:34 am
✔ 最佳答案
Balancing an equation....You wrote:
"Na3PO4+HCl->NaCl+H3PO4"
The balanced equation for the indicated reaction is:
Na3PO4(aq) + 3HCl(aq) --> 3NaCl(aq) + H3PO4(aq)
Total coefficients = 8
But also be aware that the relative amount of HCl will determine the product. Sodium phosphate will ionize completely, and as it does so there are three possible products in the presence of H+ ions.
PO4^3- + H+ --> HPO4^2-
PO4^3- + 2H+ --> H2PO4^-
PO4^3- + 3H+ --> H3PO4
Na3PO4(aq) + HCl(aq) --> NaCl(aq) + Na2HPO4(aq)
Na3PO4(aq) + 2HCl(aq) --> 2NaCl(aq) + NaH2PO4(aq)
Na3PO4(aq) + 3HCl(aq) --> 3NaCl(aq) + H3PO4(aq)
2018-07-31 12:43 am
The balanced equation is:
Na₃PO₄ + 3HCl → 3NaCl + H₃PO₄
Sum of coefficients = 1 + 3 + 3 + 1 = 8
The answer: C) 8
Na₃PO₄ + 3HCl → 3NaCl + H₃PO₄
Sum of coefficients = 1 + 3 + 3 + 1 = 8
The answer: C) 8
2018-07-31 12:43 am
...
Na3PO4+3HCl->3NaCl+H3PO4
adds up to 8
When you get a good response,
please consider giving a best answer.
This is the only reward we get.
Na3PO4+3HCl->3NaCl+H3PO4
adds up to 8
When you get a good response,
please consider giving a best answer.
This is the only reward we get.
2018-07-31 12:35 am
You have asked a bunch of similar 'questions' but none of them are questions, and we have no idea what you are asking. And what the answer choices mean.
It doesn't take much time to ask the full question instead of part of it. And that way you can get answers.
It doesn't take much time to ask the full question instead of part of it. And that way you can get answers.
收錄日期: 2021-05-01 22:26:28
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