2H2 + O2 → 2H2O, how many gramsof water will formif 10.54g h2 react with 95.1g o2? Which reactant will be in excess, and how many moles o fit wil lbe left over?

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.

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive