suppose 8.00 L of gas is known to contain 0.75 mol. If the amount of gas is increased to 3.50 mol, what new volume will result

What is the composition, in atom percent, of an alloy that consists of 4.5 wt% pb and 95.5 wt% sn? the atomic weights for pb and sn are 207.19 g/mol and 118.71 g/mol, respectively.(a) 2.6 at% pb and 97.4 at% sn(b) 7.6 at% pb and 92.4 at% sn(c)97.4 at% pb and 2.6 at% sn(d) 92.4 at% pb and 7.6 at% sn

Nonmetal halogen family atmoic mass 35

Which of these conditions most likely produces an unstable isotope?