Scientists study changes in beaches, marshes, and other coastal areas. The
movement of water causes these coastal areas to change. Which of these is NOT a
source of data scientists might use to study these changes?
A. information about the size and shape of beaches
B. maps of hurricane paths in the past ten years
C. data on waves and tides
D. surveys that ask people their opinions of beaches

Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.

Which electron configuration represents the electrons in an atom of sodium in the ground state at stp

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 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.