Chemistry, 25.08.2019 00:30 22moneymorgan
If an element has an atomic mass of 127 and an atomic number of 53, how many neutrons does it have? 74 127 53 75
Answers: 2
Chemistry, 21.06.2019 12:30
A__ is two or more substances that are together in the same place but are not chemically combined
Answers: 3
Chemistry, 22.06.2019 09:40
In the lab, ammonia was mixed with water to form ammonium hydroxide. what is/are the reactant(s)? o water and ammonia o ammonia o ammonium hydroxide need
Answers: 2
Chemistry, 22.06.2019 16:00
He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98
Answers: 2
Chemistry, 22.06.2019 21:30
Under which circumstances are kp and kc equal for the reaction aa(g)+bb(g)⇌cc(g)+dd(g)?
Answers: 2
If an element has an atomic mass of 127 and an atomic number of 53, how many neutrons does it have?...
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