- Should we mine the asteroid belt? What's with asteroids?

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Help!!! The heat of fusion for naphthalene is 0.148 kJ/g. Calculate the heat energy in joules required to melt 17.55 g of naphthalene.? Please provide me with a like of geological information on South Sudan's mining survey? Supppose you wanted to dissolve 58.0 g NaOH
in enough H2O to make 8.50 L of solution.
What is the molarity? What is the balance equation for CuSO4+5H20., or is it already balanced? Find the standard form of the equation of the parabola with a focus at (0, -2) and a directrix at y = 2.?