Le dioxyde de carbone rejeté par les poissons se dissout dans l'eau et se transforme en acide carbonique. Cette dissolution fait-elle baisser ou augmenter le pH de l'eau de l'aquarium? Pourquoi?

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li

Which description best characterization the motion of particles in a solid

Which conclusion fits the data in the table? a. heat chemically changes chocolate and margarine. b. all solids become liquid at 100°f. c. removing heat from a substance it to melt. d. matter may change shape when it is heated.