An iron-containing compound is 20.1% Fe, 11.5% S, 63.3% O, and 5.1% H. What is the empirical formula for this compound?

How is the structure of atoms altered during fission and fusion?

How many degrees does the earth tilt

Cornea transplants are rarely rejected because the cornea has no blood supply explain why that is

Consider separate 1.0-l gaseous samples of h2, xe, cl2, and o2 all at stp. a. rank the gases in order of increasing average kinetic energy. b. rank the gases in order of increasing average velocity. c. how can separate 1.

How does the rider's ability to stop the bike change as the bike moves down a steep hill

A population of crabs live on a light-colored sandy beach. In this environment there is a population of birds that eat the crabs. One year, there is a volcanic eruption near the beach and dark volcanic ash covers the beach.

It would take one light year to travel to the sun? True or false?

A specific, electrically neutral atom of boron has 5 protons, 5 electrons, and 6 neutrons. what is the mass number of this atom of boron? 6 5 11 16

When does hail happen?

For the reaction, calculate how many moles of the product form when 0.012 mol of O2 completely reacts. Assume that there is more than enough of the other reactant. 4Al (s) + 3O2 (g) →2Al2O3 (s) Express your answer using two significant figures.