12 which gas is monatomic at room temperature and
pressure?
(1) nitrogen
(2) neon
(3) fluorine
(4) chlorine

Apure solvent has a vapor pressure the vapor pressure of a solution. a. equal to b. lower than c. higher than

Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.