How many grams of KMnO4 are needed to carry out this reaction on 35.76 grams of KNO2

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

If the particles in a sample of matter have an orderly arrangement and move only in place, the sample is a

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation: