3 years ago

In which level of organization would the roots of a plant most likely be classified make sure to explain too

1 answer:

4 0

Answer:

the biological levels of organization of living things arranged from the simplest to most complex are organelle , cells , tissues , organs , organ system , organism , population , communities , ecosystem , and biosphere....

Explanation:

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Question 3 of 10

ikadub [295]

Answer:

salt water 97%

fresh water 1%

frozen 2%

Explanation:

8 0

3 years ago

Use standard reduction potentials to calculate the equilibrium constant for the reaction: 2Cr3+(aq) + Pb(s)2Cr2+(aq) + Pb2+(aq)

inn [45]

Answer:

3.47 ×10^-10

Explanation:

The equation of the reaction is 2Cr3+(aq) + Pb(s)------->2Cr2+(aq) + Pb2+(aq)

A total of two moles of electrons were transferred in the process. The chromium was reduced while the lead was oxidized. Hence the lead species will constitute the oxidation half equation and the chromium will constitute the reduction half equation.

E°cell = E°cathode - E°anode

E°cathode = -0.41 V

E°anode = -0.13 V

E°cell = -0.41 -(-0.13) = -0.28 V

From

E°cell = 0.0592/n log K

n= 2, K= the unknown

-0.28 = 0.0592/2 log K

log K = -0.28/0.0296

log K = -9.4595

K = Antilog ( -9.4595)

K= 3.47 ×10^-10