Answer the following questions to the best of your abilities: a) BH3 is a gas [BH3 is the empirical formula of B2He]. Write out a reaction, with curved arrows, that shows how BH3 and THF (the solvent) form a Lewis Acid- Lewis Base complex. (0.5 pt) H 0 b) Why could it have been a bad idea to leave this reaction open to atmosphere

In a reaction (at equilibrium) that makes more moles of gas than it consumes, what is the effect of increasing the pressure?

28. which is not a reason that water is used to store spent fuel rods from nuclear power plants? water increases the speed of the chain reaction in the fuel rods. water protects nuclear power plant workers from the high temperature and radiation of the fuel rods. water acts as a radiation shield to reduce the radiation levels. water cools the spent rods. salts action

[ou.03jthe pictures below show the wavelengths and intensities of electromagnetic radiations emitted by three stars, star 1, star 2, and star 3. intensity intensity- intensity- 1000 3500 6000 8500 11000 wavelength (a) star 1 1000 3500 6000 8500 11000 1000 3500 6000 8500 11000 wavelength (a) wavelength (a) star 2 star 3 which of these statements is correct about the color of the three stars? star 2 is white in color o star 2 is yellow in color star 1 and star 3 are yellow in color star 1 and star 3 are white in color