There are two different types (isotopes) of copper atoms. One type of copper atoms weighs in at 62.93 amu, the other has a mass of 64.94 amu. The lighter isotope is more common making up 69.09% of the naturally occurring copper. The remainder of the atoms, 30.91% have a mass of 64.94 amu.
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Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17
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Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .
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There are two different types (isotopes) of copper atoms. One type of copper atoms weighs in at 62.9...
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