Which of the following sets of oxidation numbers is not correct? kmno4 : k +2, mn +6, o -2 nacho2 : na +1, c +2, h +1, o -2 zn(oh)2 : zn +2, o -2, h +1 scl2 : s +2, cl -1

0.66y = 0.9x + 0.48 if y has a value of 108.45 what is the value of x?

Explain why scientists use shared characteristics to make cladograms.

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.