Which best explains why an iceberg floats? Water expands and becomes denser when it freezes.
Water contracts and becomes denser when it freezes.

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution?

Suppose the universe were completely empty except for one object-a solid sphere moving through space of 100 km/s. what sort of path would the object be moving in? explain your answer

Convert the temperature of dry ice, –77 ∞c, into degrees fahrenheit and kelvin.