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If zinc and iron are used to make a cell what half-reactions will occur for zn2 plus aq plus 2e- zn s e0 equals -0.76 v and for fe3 plus aq plus e- fe2 plus aq e0 equals 0.77 v?
Zn(s) → Zn2+(aq) + 2e- and Fe3+(aq) + e- → Fe2+(aq)
How figure answer for Zn plus O2 equals ZnO?
If you want to balance the equation, then: 2Zn + O2 --> 2(ZnO)
Has fermat's last theorem been disproved?
Fermat's last theorem says xn + yn = zn where n is bigger than 2 has no solution.The theorem has NOT been disproved, in fact it was proved by Andrew Wiles.He worked with Richard Taylor and they used things known as elliptic curves. There are many great books that explain the proof, but a good amount of graduate level abstract algebra is required.
Properties of Chi-square distribution?
It is a continuous distribution. Its domain is the positive real numbers. It is a member of the exponential family of distributions. It is characterised by one parameter. It has additive properties in terms of the defining parameter. Finally, although this is a property of the standard normal distribution, not the chi-square, it explains the importance of the chi-square distribution in hypothesis testing: If Z1, Z2, ..., Zn are n independent standard Normal variables, then the sum of their squares has a chi-square distribution with n degrees of freedom.
