Are interstitial alloys denser than pure metals?

Why is the structure of molecule important to its function?

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.

Convert the temperature of dry ice, –77 ∞c, into degrees fahrenheit and kelvin.