The distance between the atoms of h−br is 1.41å. what is the distance in meters? express your answer in meters to three significant figures.

One of the reactions in a blast furnace used to reduce iron is shown above. how many grams of fe2o3 are required to produce 15.5 g of fe if the reaction occurs in the presence of excess co? a.11.1 g b.22.1 g c.30.0 g d.44.2 g

Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.

What is the number of atoms in 3.54 mol s