B. 4 7. A fluorine atom has 9 electrons - 7 in its outer shell and 2 in its inner shell. How many
electrons would be in the outer shell if it were to become a fluoride ion?
A, 2
C.6
D..1 E. 8
8. Sodium (Na) (#11) has 2 electrons in its inner shell, 8 in its next shell and 1 in its outer
shell.
What type of ion would it form?
A. Nal- B. Na-
C. Na2+ D. Nal+-
E. Na 7-

The last few miles of the marathon are the most difficult for heather, her hair plastered to her head, sweat clinging to her arms, and her legs already feeling as if they had nothing left, just dead weight. after grabbing a cup of ice water, she feels the ice cubes smash against her nose as she gulps some cool refreshment and keeps on running. in these last few miles, the breeze kicks up and she finally feels some coolness against her skin. drips of sweat, once clinging to her forehead, now spill down, and heather feels more pain as the sweat flows into her eyes. which of the following is the most likely reason why the ice struck heather’s nose when she took a drink? a) water can function as a solvent. b) water can store large amounts of heat. c) water can moderate temperatures through evaporative cooling. d) the density of water decreases when it freezes. e) water has a cohesive nature. sweat remained on heather’s forehead and arms because of the a) high salt content of sweat b) cohesive nature of water c) ability of water to moderate heat d) high evaporative cooling effect of water e) ability of water to act as a solvent

How many moles of no2 will form when 3.3 moles of cu are reacted with excess hno3?

What is the value of the standard enthalpy of formation of an element in its most stable form?