The volume between the 50.00 mark and the valve of a buret is 5.58 . The buret reading of an upside down buret containing a pocket of hydrogen gas is 31.15 mL. What is the total volume of hydrogen in the buret?

Energy is released during which phase changes? check all that apply. boiling condensing depositing freezing melting subliming

Particles vibrate in a rigid structure and do not move relative to their neighbors.

Which of the following statements about hybrid orbitals is or are true? choose all that apply. choose all that apply. under sp2 hybridization, the large lobes point to the vertices of an equilateral triangle. after an atom undergoes sp hybridization there is one unhybridized p orbital on the atom. the angle between the large lobes of sp3 hybrids is 109.5∘