Given the balanced equation: 3Fe + 4H2O → Fe3O4 + 4H2
What is the total number of liters of H2 produced at STP when 36.0 grams of H2O is consumed?

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

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?

Choose all the answers that apply. as ocean depth increases, temperature decreases temperature increases pressure increases pressure decreases salinity increases density increases