Match each event with its description.
1.new moon
•the moon is fully visible to
observers on earth.
2.solar eclipse
•the moon lies between
earth and the sun, but
does not block light from
reaching earth.
3.lunar eclipse
•earth blocks sunlight from
reaching the moon.
4.full moon
•the moon blocks sunlight
from reaching earth.

Which solution is an example of a nonelectrolyte? a. iodine in hexane b. sodium nitrate in waterc. acetic acid in waterd. hydrogen chloride in water

Calculate: select the worksheet tab. this tab you calculate the analyte concentration.  fill in the first set of boxes ("moles h2so4" and "moles naoh") based on the coefficients in the balanced equation. (if there is no coefficient, the value is 1.)  record the appropriate volumes in the "ml naoh" and "ml h2so4" boxes.  record the concentration of the titrant in the m naoh box. click calculate. what is the concentration listed

Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.