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A potassium atom has a mass number of 37. What is the number of neutrons in this atom?
CaH2
18
0.935 mol
(106.905 u)(51.8%) + (108.905 u)(48.2%)
10%
2
ethanoic acid
higher first ionization energies and higher electronegativity values
Which numerical setup can be used to calculate the atomic mass of silver?
CaH2
18
0.935 mol
(106.905 u)(51.8%) + (108.905 u)(48.2%)
10%
2
ethanoic acid
higher first ionization energies and higher electronegativity values
Compared to the metals in Period 2, the nonmetals in Period 2 have
CaH2
18
0.935 mol
(106.905 u)(51.8%) + (108.905 u)(48.2%)
10%
2
ethanoic acid
higher first ionization energies and higher electronegativity values
Which formula represents calcium hydride?
CaH2
18
0.935 mol
(106.905 u)(51.8%) + (108.905 u)(48.2%)
10%
2
ethanoic acid
higher first ionization energies and higher electronegativity values
Which compound has the strongest intermolecular forces at 60 kPa?
CaH2
18
0.935 mol
(106.905 u)(51.8%) + (108.905 u)(48.2%)
10%
2
ethanoic acid
higher first ionization energies and higher electronegativity values
A potassium atom has a mass number of 37. What is the number of neutrons in this atom?
CaH2
18
0.935 mol
(106.905 u)(51.8%) + (108.905 u)(48.2%)
10%
2
ethanoic acid
higher first ionization energies and higher electronegativity values
Which Lewis electron-dot diagram represents an atom of nitrogen in the ground state?
CaH2
18
0.935 mol
(106.905 u)(51.8%) + (108.905 u)(48.2%)
10%
2
ethanoic acid
higher first ionization energies and higher electronegativity values
What is the number of moles in a 78.8-gram sample of MgCO3 (gram-formula mass = 84.3 g/mol)?
CaH2
18
0.935 mol
(106.905 u)(51.8%) + (108.905 u)(48.2%)
10%
2
ethanoic acid
higher first ionization energies and higher electronegativity values
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