Calculate the molar concentration of the cl⁻ ions in 0.54 m alcl3(aq), assuming that the dissolved substance dissociates completely in solution.

Which is true of transition metals when moving from left to right on the periodic table? the d sublevels are not filled across the period. the cation radii become larger across the period. atomic radii increase slightly and then start to decrease. atomic radii decrease slightly and then start to increase. o

Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.

Which organism develops breathing organism develops breathing organs from pharyngeal arches? shark, spider, sea star, sea horse