Which of these mixtures are heterogeneous? 1.brass (an alloy of copper and zinc) 2.granite (a type of rock with multicolor spots) 3.oil and water 4.salt and water

Determine the energy released per kilogram of fuel used. given mev per reaction, calculate energy in joules per kilogram of reactants. consider 1 mole of tritium plus 1 mole of deuterium to be a mole of “reactions” (total molar mass = 5 grams).

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

Asample of aluminum foil contains 8.60 × 1023 atoms. what is the mass of the foil?