Help please What is the mass of 3.75 moles
of NaCl?
(Na = 22.99 g/mol, Cl = 35.45 g/mol)

Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?

Surface currents are caused by blank space . question 14 options: surface currents are caused by? differences in water temperature high salinity differences in density wind forces

Word equation for k(s)+h2o(l) yield koh(aq) + h2(g)