Basic Chemistry & Water

If something has a pH of below 7 it is considered a(n):

In the water molecule below, which element is slightly negative?

In chemistry, Polarity means:

Cohesion of water at the surface

Forces of adhesion and cohesion work together to help water move up vessels of plants

atoms of the same element, but different # of neutrons.

(-) charge; located in energy shells orbiting around the nucleus of an atom

(0 or no) charge; located in the nucleus of an atom

bonding of 2 or more different elements.

tells the concentration of H+ ions in a solution (if it is an acid or base)

property of water that determines what objects float and sink

Attraction between molecules of different substances (water sticking to other surfaces)

help maintain homeostasis in organisms by resisting a change in pH (often neutralizing pH) bringing them closer to 7.

If something has a pH of 7 it is considered a(n):

the smallest basic unit of matter

Attraction between molecules of the same substance (water to water)

Electrons in the outermost energy shell of an atom

bond formed when atoms share electrons. Most living things contain these bonds.

If something has a pH of above 7 it is considered a(n):

(+) charge; located in the nucleus of an atom

In the water molecule below, which element is slightly positive?

bond between slightly positive hydrogen end and slightly negative oxygen end (like a magnet)

bond formed when electrons are transferred between ions

charged atoms that have lost or gained electrons

pure substance that consists entirely of one type of atom.

Amount of energy needed to raise a substance’s temperature