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

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc

What causes different colors to appear in the sky? the absorption of light by air molecules the reflection of light by bodies of water the greenhouse effect in earth's atmosphere the scattering and reflection of light by dust particles

C=59(f−32)the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true? a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of 59 degree celsius.a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.a temperature increase of 59 degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.a) i onlyb) ii onlyc) iii onlyd) i and ii only