In a certain reaction at STP, 29.2 L of methane is combusted with 63.3 L of oxygen.
What volume of excess reactant remains after the reaction is
complete?

Water molecules have a strong attraction to each other because of hydrogen bonding, allowing water to move against gravity up a plant's stem through capillary action. true false

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

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∘