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Author Archives: Anonymous

An example of a heterogeneous mixture is one prepared by dis…

An example of a heterogeneous mixture is one prepared by dissolving the solid, sodium chloride (table salt), in the liquid, water

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Which quantum number is often designated by the letters s, p…

Which quantum number is often designated by the letters s, p, d and f?          (A) n                 (B) l                 (C) ml               (D) ms   

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If an element consisted of three isotopes in the following r…

If an element consisted of three isotopes in the following relative abundance, what would the atomic weight of the element be? This is a hypothetical example.      Isotope 1                    30.00%                                   37.00 amu      Isotope 2                   50.00%                                    38.00 amu      Isotope 3                  20.00%                                     40.00 amu

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How many protons (p) and neutrons (n) are in an atom of  Sr?

How many protons (p) and neutrons (n) are in an atom of  Sr?

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d electronic orbital consists of three degenerate (same ener…

d electronic orbital consists of three degenerate (same energy level) sub-orbitals.

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What is the frequency of a helium-neon laser light with a wa…

What is the frequency of a helium-neon laser light with a wavelength of 632.8 nm? The speed of light is 3.00 × 108 m/s. A) 4.74 × 1014s-1 B) 4.74 × 105s-1 C) 2.11 × 10-15s-1 D) 1.58 × 10-15s-1

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The isotope represented by  C is named

The isotope represented by  C is named

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What is the primary energy system that would supply the acti…

What is the primary energy system that would supply the active muscles with ATP during a100 yard dash (12 seconds)?

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An artifact is an item or object created from a task.

An artifact is an item or object created from a task.

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To Copy to the Clipboard, type

To Copy to the Clipboard, type

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