Consider the following brønsted acid-base reaction at 25°c: hf(aq) + cl−(aq) ⇆ hcl(aq) + f−(aq) (a) predict whether k will be greater or smaller than 1. it will be greater than 1. it will be smaller than 1. (b) does δs o or δh o make a greater contribution to δg o ? δs o makes a greater contribution. δh o makes a greater contribution. they both contribute equally. (c) is δh o likely to be positive or negative? it is likely to be positive. it is likely to be negative. it is not possible to know.

The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.

What effects result when there is an impact between earth and an asteroid? check all that apply. a.massive flooding. b.extinction of many life forms.c.major earthquakes change in average global temperature.d. giant dust cloud

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2