When the tides are especially strong due to the alignment of the sun and moon, it is called a tide?

What does the mass of 0.7891 mol of ferric oxide (fe2o3)

How many liters of oxygen gas, at standard temperature and pressure, will react with 35.8 grams of iron metal? 4 fe (s) + 3 o₂ (g) → 2 fe₂o₃ (s)

What type of context clue you understand the meaning of  quandary?