Need help please! (04.04 MC) When potassium metal is placed in water, a large amount of energy is released as potassium hydroxide and hydrogen gas are produced in the reaction 2K(s) + 2H2O(l) ---> 2KOH(aq) + H2(g). Your lab partner says this is a redox reaction and a combustion reaction. Do you agree? Defend your answer by explaining whether or not it meets the requirements of each type of reaction.

Answerhave membrane-bound organelles;

2poclâ‚(g) ⇜ 2 pclâ‚(g) + oâ‚‚(g) â†gâ° = (2 mol)î”gfâ°(pclâ‚) – (2 mol)î”gfâ°(poclâ‚) = (2 mol)(–270 –(–502) kj/mol) â†gâ° = + 464 kj = â†hⰠ– tî”sâ° î”sâ° = 179 j/k ⇒ â†hâ° = â†gâ° + (298 k)(179 j/k) = –411 kj assuming that î”hâ° and î”sâ° do not depend on temperature, the temperature at which â†gâ° = 0 is where t = â†hâ°/î”sâ° = (–411 kj)/(0.179 j/k) = 2294 k. at that temp. keq = 1 for the reaction.

Answer1.7x10-18;

Electricity is conducted when charges move from one place to another. in metals, the conductivity is due to delocalized electrons that can wander all over the place. you're probably already familiar with this.in solid ionic compounds, on the other hand, the ions aren't going anywhere. the cations and anions all attract themselves into a nice lattice and they're stuck there until they have a better reason to wander off. no moving ions = no electricity.however, if you melt an ionic compound or dissolve it in water, these ions are now free to move around. as a result, the solution can be made to conduct electricity.think about this, in solid form the outer shells of the elements are filling each other thus neutralizing the substance, but when you separate the ions (atoms of each element) their shells have space that needs to be filled or emptied, so they want to gain or loose electrons to have a full energy level. because they want this the electrons are able to move and "bounce" from ion to ion.i believe this is correct not 100%