If a sealed syringe is plunged into cold water, in which direction will the syringe piston slide?
a. in
b. out
c. no movement will occur
d. the direction cannot be predicted

The crust of earth may a- continets and ocean floors. b-continents only. c-layers of sedimentary rocks and continents. d-all of the above

How is the atomic number of a nucleus changed by alpha decay

Which of the following is most likely true about water in chemical systems? a) water dissolves nonpolar ionic compounds. b) water dissociates ionic compounds. c) water dissociates covalent molecules. d) water dissolves nonpolar covalent substances.