Materials for the construction of an amusement park are being considered for the building of various rides and attractions at the park. Materials are being selected based on their specific heat and are listed in the table below.
Material
Specific
Heat
(J/(kg•K))
450
Iron
Aluminum
900
Steel
502
Glass
840
Plastic
2302
The formula that relates energy change, mass, specific heat, and temperature change is
Energy Change = Mass Specific Heat * Temperature Change
The park engineers decided that a large, warm water fish tank would be a great attraction at the park's entrance. Based on the specific
heats of plastic and glass, wh material should they use to best warm the tank's water with heat from the sun? Explain your choice. How
many times more energy would need to be transferred to the plastic for it to get as warm as the glass? Assume that the mass and the
change in temperature are the same for both materials.

Many reactions take place in aqueous solution. when potential reactants are mixed, a reaction will occur if there is some driving force that favors the formation of products. it is often convenient to categorize reactions in terms of these driving forces: precipitate formation, in which an insoluble solid is formed, weak electrolyte formation, as in a neutralization reaction involving water, or transfer of electrons, as in a redox reaction. these reactions can be represented by full molecular equations, which contain all species in the reaction mixture, or by net ionic equations, which show only the species that actually undergo a change. the latter does not contain the spectator ions, which do not undergo a net change or do not take part in the reaction. part a when the following two solutions are mixed: k2co3(aq)+fe(no3)3(aq) the mixture contains the ions listed below. sort these species into spectator ions and ions that react. drag the appropriate items to their respective bins. view available hint(s) spectator ions ions that react part b what is the correct net ionic equation, including all coefficients, charges, and phases, for the following set of reactants? assume that the contribution of protons from h2so4 is near 100 %.ba(oh)2(aq)+h2so4(aq)→ express your answer as a chemical equation. view available hint(s) nothing provide feedback

Which of the four hypothetical substances you investigated would be most harmful to living organisms? 50 points!

How many formula units in 2.63 mols of nacl?