Can someone tell me the moles and atoms for MgN4(OSi2)3 and 3MgH2O3

a:

by the combination of an unlimited number of elements

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.

answer seismograph;