What is nasa’s kepler telescopes mission?

Assuming complete dissociation of the solute, how many grams of kno3 must be added to 275 ml of water to produce a solution that freezes at -14.5 c? the freezing point for pure water is 0.0 c and k_f is equal to 1.86 c/m

What happens to the temperature of a substance when the average kinetic energy of its particles increases?

How to calculate the mass of copper