MHB Chemistry: Balancing Redox reactions

needOfHelpCMath
Messages
70
Reaction score
0
What do i have wrong here for my chemical equation? Seems to be right but my homework won't accept it.

Balance the redox reaction occurring in acidic solution.

Sn(s)+MnO−4(aq) → Sn2+(aq)+Mn2+(aq)

Express your answer as a chemical equation including phases.
5Sn+2MnO−4+16H+→5Sn2++2Mn2++8H2O


is this correct?
 
Mathematics news on Phys.org
needOfHelpCMath said:
What do i have wrong here for my chemical equation? Seems to be right but my homework won't accept it.

Balance the redox reaction occurring in acidic solution.

Sn(s)+MnO−4(aq) → Sn2+(aq)+Mn2+(aq)

Express your answer as a chemical equation including phases.
5Sn+2MnO−4+16H+→5Sn2++2Mn2++8H2O


is this correct?

Hi needOfHelpCMath!

It seems correct to me, although the question does ask to include phases.
So should it perhaps be:
$$Sn(s)+MnO^−_4(aq) → Sn^{2+}(aq)+Mn^{2+}(aq)$$
$$5Sn(s)+2MnO^−_4(aq) + 16H^+(aq)→ 5Sn^{2+}(aq)+2Mn^{2+}(aq) + 8H_2O
$$
(Wondering)
 
I like Serena said:
Hi needOfHelpCMath!

It seems correct to me, although the question does ask to include phases.
So should it perhaps be:
$$Sn(s)+MnO^−_4(aq) → Sn^{2+}(aq)+Mn^{2+}(aq)$$
$$5Sn(s)+2MnO^−_4(aq) + 16H^+(aq)→ 5Sn^{2+}(aq)+2Mn^{2+}(aq) + 8H_2O
$$
(Wondering)

So inputed your answer and it said "Check your placement of subscripts and super subscripts"
 
needOfHelpCMath said:
So inputed your answer and it said "Check your placement of subscripts and super subscripts"

Perhaps MnO-4 should be the other way around. That is, it should be MnO4-, since it's really $(MnO_4)^-$. (Thinking)
 
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. In Dirac’s Principles of Quantum Mechanics published in 1930 he introduced a “convenient notation” he referred to as a “delta function” which he treated as a continuum analog to the discrete Kronecker delta. The Kronecker delta is simply the indexed components of the identity operator in matrix algebra Source: https://www.physicsforums.com/insights/what-exactly-is-diracs-delta-function/ by...
Fermat's Last Theorem has long been one of the most famous mathematical problems, and is now one of the most famous theorems. It simply states that the equation $$ a^n+b^n=c^n $$ has no solutions with positive integers if ##n>2.## It was named after Pierre de Fermat (1607-1665). The problem itself stems from the book Arithmetica by Diophantus of Alexandria. It gained popularity because Fermat noted in his copy "Cubum autem in duos cubos, aut quadratoquadratum in duos quadratoquadratos, et...
I'm interested to know whether the equation $$1 = 2 - \frac{1}{2 - \frac{1}{2 - \cdots}}$$ is true or not. It can be shown easily that if the continued fraction converges, it cannot converge to anything else than 1. It seems that if the continued fraction converges, the convergence is very slow. The apparent slowness of the convergence makes it difficult to estimate the presence of true convergence numerically. At the moment I don't know whether this converges or not.
Back
Top