Cr2(SO4)3
+
NaOH →
Cr(OH)3
+
Na2SO4
Help balance it please pretty please

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

answerspecific gravity;

the objects have the same charge is correct.

nathan lee