1.The reaction of iron(III) oxide (Fe2O3) and hydrogen (H2) is represented by the following unbalanced chemical equation. 1 Fe2O3(s)  3 H2(g) → 2 Fe(s)  3 H2O(l)
Determine the mass in grams of hydrogen gas needed to react completely with
33.5 g Fe2O3.
Step 1.
Step 2.
Step 3.
Step 4.

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone,due to its high light availability and warm water temperature

Aroller coaster is traveling at 13 mi./s when you purchase a hill that is 400 m long and down the hill exonerate at 4.0 m/s squared what is the final velocity of the posterior found your answer to the nearest number

Deferentiate volatile and non volatile acid