Iron oxide ore can be reduced using carbon to give pure iron. The chemical equation for this reaction is shown below. How much carbon would be needed to reduce 80 tonnes of iron oxide ore?

Its strengthits conductivity of heat and electricity its shiny colourmalleable and ductility

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.

The fraction of an original sample of tritium that remains unchanged after 24.62 years is 1/4. if you need the percentage it is 25%