How many molecules are in 11 moles of O2? Watch your significant figures. Question 5 options: A. 6.6 atoms of O2 B. 6.62 x 1024 moles of O2 C. 6.62 x 1023 atoms of O2 D. 6.6 x 1024 molecules of O2

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

Calcium chloride +gold(1) oxide—>

Identify the missing numbers below to show the result of multiplying the numbers (1.6 × 10-19)(5.0 × 106) = c × 10d