Complete the sentence. select all that apply. in the vertical columns of the periodic table:
atomic weight increases from top to bottom
outer shell electrons increase from top to bottom
the number of shells increases from top to bottom
all the physical properties are identical

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering

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.

A5.00 g of a in . g of at aa 5.00 g of b in . g of .?at .