Answer these two question and explain why ?

What happens when a magniseum ion ia atracked to a chlrene ion

Which of these is most likely to happen if parallax measurements of star distances are taken after a gap of six months? the results would be accurate the results would be inconsistent the results would not be valid the results would not be repeated

For this question look at the hydropic diagram water that is heated by the sun evaporates. select the number that represents it.