Realiza la ecuación para cada uno de los átomos que se mencionan a continuación: Calcio-Aluminio-Carbono-Nitrógeno-O xígeno-Flúor. Indicara si es un
anión o un catión.
porfa ayuda

Which term describes a fracture in the earth at which land stays in the same place? a. joint b. fault c. split d. hinge

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.