A sample of seawater contains 78.0 grams of NaCl in 2,025 mL of solution. If the molar mass of NaCl is 58.443 g/mol, what is the molarity of this sample? (3 points)
0 2.08 M NaCl
O 0.659 M NaCl
O 1.84 M NaCl
0.823 M Naci

The first element on the periodic table of elements is carbon. a. true b. false

100 points answer quick the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

How are isotopes of the same chemical element alike? how are they different?