In science, a vacuum is defined as space that contains absolutely no matter (no molecules, no atoms, etc.) can energy be transferred as heat through a vacuum? a. true b. false

Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one

Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.

When the mercury level in a barometer decreases that atmospheric pressure has