The questions in this practice exam are thoughtfully crafted to assess your knowledge and skills. They cover a range of topics and formats, offering a valuable opportunity for self-assessment and preparation.

Which two particles each have a mass of approximately one atomic mass unit?

The wave-mechanical model of the atom describes the location of electrons

When a ground state electron in an atom moves to an excited state, the electron

Which statement describes a chemical property of iron?

Diamond and graphite are two forms of solid carbon. These two forms of carbon have

Which substance can be broken down by a chemical change?

Which equation represents conservation of mass and energy?

At STP, which property can be used to differentiate a 10.-gram sample of NaCl(s) from a 10.-gram sample of NaNO3(s)?

What is the number of electrons shared between the two atoms in an O2 molecule?

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