Balance the chemical equation given below, and determine the number of grams of MgO that are needed to produce 25.0 g of Fe2O3. Chemical Formula is
MgO(s) + Fe(s) → Fe2O3(s) + Mg(s)

What is the most stable monatomic ion formed from nitrogen

Which of these best describes an ionic bond?

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.