If δh = - 70.0 kj and δs = - 0.300 kj/k, the reaction is spontaneous below a certain temperature. calculate that temperature.

A student tried to dissolve some iodine crystals in water, but found that they could not dissolve. She used alcohol instead and found out that the iodine crystals dissolve readily in alcohol.

Calculate the equilibrium constant at 25 ∘C for the reaction Fe (s) + 2Ag + (aq) →Fe2 + (aq) + 2Ag (s) Standard Reduction Potentials at 25 ∘C Fe2 + (aq) + 2e-→Fe (s) E∘ = - 0.45 V Ag + (aq) + e-→Ag (s) E∘ = 0.80 V

Calculate the density of a substance that has a mass of 250 g and a volume of 50. ml.

Which example shows an ecosystem of organisms? A. a single monkey B. a group of tree monkeys C. a group of tree monkeys and a cluster of trees D. a group of tree monkeys, a cluster of trees, a pile of rocks, and a fierce wind

DNA molecules are replicated during what part of the cell cycle

Which is the most practical argument for the continued funding of space exploration? a) Space exploration will one day show whether life exists on other planets in star systems similar to ours.

33 protons 36 electrons 45 neutrons

The periodic table includes all of the known elements in the world. how are elements arranged on the periodic table?

The pOH of a solution is 13.28. What is the [OH]

If you can choose any animal in the world to be, what animal would you choose. (I'd be a wolf or a dog, mostly a wolf)