20) Determine the number of ions contained in 1 mole of sodium sulfate.
A)
1.204 x 1024 ions
B)
1.807 x 1024 ions
2.007 x 1023 ions
D)
6.022 x 1023 ions

Complete the table for ion charge based upon their losing or gaining electrons in the outer shell. (use the periodic table as necessary.) group most likely ionic charge # of valence electrons i +1 ii +2 iii +3 iv +4 or -4 v -3 vi -2 vii -1 viii 0

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

Is 9 correct? and can someone me with 10? it’s due tomorrow, you