Which of the following describes the distribution of sodium and potassium between cells and body
fluids?

a) little of either in the cells, but large amounts of each in the body fluids
b) na+ mainly in the cells, k+ in the body fluids
c) k+ mainly in the cells, na+ in the body fluids
d) equal amounts of each ion in the cells and body fluids

Calculate the molarity of the solution. 6.02 x 1022 molecules of hci (molecular weight = 36.5 g/mole) in 2.0 liters of water m

Which statement describes both homogeneous mixtures and heterogeneous mixtures?

1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false