How many neutrons does element x have if its atomic number is 59 and its mass number is 164?

Solar cell a produces 100 joules of energy, when a light source is shown on it for 3 minutes. solar cell b produces 200 joules of energy when the same light source is shown on it for 5 minutes. which solar cell works better? a) solar cell b, because it produces more energy. b) solar cell b, because it generates more power. c) solar cell a, because it produces energy quicker. d) solar cell a, because it generates a greater wattage. eliminate

Phase changes are chemical changes. true or false

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island