Why is water an excellent solvent for most ionic compounds and polar covalent molecules but not for non-polar compounds? a) water is a polar molecule. b) water has a charge like an ion. eliminate c) water is a deionizing substance. d) water molecules have an unusually high kinetic energy in the liquid state.

How can you keep track of variables in a science experiment?

What is the difference between the conducting zone and the respiratory zone of the respiratory system? the conducting zone is a series of cavities and tubes that move air to the respiratory zone where gases exchange with the bloodstream. the conducting zone exchanges gases between the lungs and the alveoli and the respiratory zone is a series of cavities and tubes that move air to the conducting zone. the conducting zone moves oxygen into the cells and the respiratory zone takes carbon dioxide away from the cells. the conducting zone moves oxygen into the bloodstream and the respiratory zone takes carbon dioxide away from the bloodstream.

The terrestrial planets are characterized by having a a.) silicate core b.) iron-rich silicate core c.) iron-rich metallic core d.) none of these