Which conversion factor do you use first to caluclate the number of grams of FeCl3 produced by the reaction of 30.3 grams of iron reacting with chlorine.
2 Fe + 3 Cl2 + 2 FeCl3

What layer of the atmosphere is directly above the troposphere?

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!

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.