If the reaction: h2(g) + i2(g) 2hi(g) has a kc = 54.8 at 450°c, then what is the free energy of the reaction? (the value of the gas constant, r, is 0.008314 kj/k •mol). -15.0 kj/mol -24.1 kj/mol -10.5 kj/mol -6.5 kj/mol

Gwhich r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? which r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? −ch2−oh −ch2−o||c−nh2 −ch2−coo− −ch2−ch2−ch2−ch2−n+h3

Hey guys so i need to know what is _nh3+> nh4oh ~chemistry~

An alloy contains 66 g of pure zinc. what is the percentage of zinc in the alloy? express your answer to two significant figures and include the appropriate units.