Answer: 1 mole of strontium, 2 moles of hydrogen, 2 moles of carbon, 6 moles of O
Explanation: i think i’m not sure
Should be solid , because a liquid has no definite shape and gas has neither just chemical properties
C. because the dam blocks fish from traveling ahead of the dam
As the electrons move away from the nucleus, it gains energy and becomes less stable. When electron jumps from lower energy level to higher energy level, it gains energy from surroundings which is known as absorption of energy. When an electron jumps from higher energy level to lower energy level, it releases energy which is known as emission of energy. Note that the electron can absorb or emit only that much amount energy which is equal to energy difference between two levels.