Convert 0.75 atm into SI units, bars, and psi. Question 11 options:

75,994 Pa, 0.76 bar, 11.03 psi

101,325 Pa, 1.01325 bar, 14.7 psi

100,000 Pa, 1 bar, 12 psi

133.32 Pa, 2 bar, 30 psi

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

If the density of water is 1.0 g/cm3, which of these materials would float in water, based on their densities? check all that apply. aluminum cork iron lead wax

How much would the freezing point of water decrease if 4 mol of sugar were added to 1 kg of water(k=1.86 c/mol/kg for water and i=1 for sugar