Fill in the blank. a is a substance that cannot be separated into simpler substances by physical or mechanical methods such as filtering, boiling, or sifting

Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?

Which compound contain an iron with a 3+ charge