A student noticed that the lowering plants under a tree in his backyard were wited. They were not standing upright, and they lokked unhealthy. He gave them plenty of water. By the next day, the plants stood upright and looked healthy. Which statement best explains why the plants looked better the next day?

During which time interval does the object travel approximately 10 meters

1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.