The atomic size of zirconium is smaller than a. niobium
b. Yttrium
c. Molybdenum
d. None of the above

Write the complete balanced equation for the reaction between lead (iv) oxide (pbo2) and water (h2o).

Smog is the term used to describe the combination of fog and smoke

Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night.  when he took it out, its new volume was 322 milliliters, but its pressure was the same.  if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is  kelvins.