For each salt solution, determine the species (cation and/or anion) that is responsible for the absorbance spectrum. explain your reasoning.

Displacement is the slope of a velocity vs. time graph a. true b. false

How many moles are in 43.9 l of oxygen

Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.