How much heat is liberated when 40 gram H, gas react with excess O2 gas according to the given reaction?
H2(g) + 120260 H2O) AH--241,82 kJ/mol

Which of these statements explains the difference between nuclear binding energy and the strong nuclear force ?

Answer asap need by wednesday morning calculate the ph of 0.036m naoh best answer will be brainliest

Asample of hydrated tin (ii) chloride (sncl2) has a mass of 4.90 g. when it is dehydrated, it has a mass of 4.10 g. which is the correct chemical formula for the hydrate? sncl2•2h2o          sncl2•4h2o          sncl2•6h2o