It would repel some of the negatively charged electrons of the wall so the answer would be C. The wall and the ballon repel each other
CaBr2(s) Ca+2(aq)+2Br-(aq) which means, <span>Solid is turning into free ions so entropy is increasing .</span>
19. The atomic number is the same as protons and electrons unless it have a - or a + charge the electrons are going to change
