If you begin this reaction with 2.5 moles of oxygen how many moles of water would be made as a product? C3H8+5O2—>3CO2+4H2O

The answer is fossil fuels.

She was of necessity running a grass roots target audience was unlettered

Sink to the bottom. addition of potassium nitrate past it’s dissolution capacity at a particular temperature will cause the extra to just sink to the bottom of the glass.however, if you were to raise the temperature of the solution prior to dissolving it, and then slowly decrease the temperature after the dissolution, you would create a “supersaturated” solution - a solution that has more solute dissolved into it than should be allowed. if you add any extra solute past this, the entire solution would “crystallize,” and this is how you get those cool videos on youtube.