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Chemistry

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Cleve Schultz

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Cards in this guide (19)
Which of these could be considered a system under thermochemical study

All of these

What is the quantum number that describes the most probable distance from the nucleaus that an electron resides

Distance depends on the principal quantum number n.

The larger the non-metallic atom is the

less active it is

The region of the universe outside the system being studied is known as the

Surroundings

A reaction that occurs without provocation from an outside system is

spontaneous

These subatomic particles respond to the strong nuclear force and have internal structure

hadrons

An indicator of the approximate energy of light

color

The fingerprint of an atom is seen in its

bright line spectrum

What VSEPR formulas would predict a trigonal bipyramidal shape

A^6

This Quantum Number is used to predict magnetic tendencies of an atom
The effect a magnet has on an atom is dependent on
What is it called when energy is unable to pass from a system to the surroundings

insulated

Choose the name and symbol for internal heat of a system at constant pressure

enthalpy, H

Which of these electron configurations would indicate a diamagnetic atom

Mg[Ne] 3s-2

Why it is said relativistic quantum mechanics

The distinction is sometimes made to distinguish normal quantum mechanics (which does not incorporate special relativity) and quantum field theory (relativistic quantum mechanics).

Since we know special relativity is correct it is the relativistic form of quantum mechanics which is true, but non-relativistic quantum mechanics is still used, because it is a good approximation at low energies and it is much simpler.

Physics students typically study regular quantum mechanics before moving on to quantum field theory.

Which quantum number describes the most probable spatial orientation that an electron's subshell will have is

Magnetic Quantum Theory

The angle of the rays of the sun strike a broken bottle in a ditch at 10 00 am At 3 45 pm the surrounding dry grass catches fire Was this a spontaneous reaction

Yes, this was a spontaneous reaction. A reaction is said to be spontaneous if it occurs without being driven by some outside force. There are two driving forces for all chemical reactions. The first is enthalpy, and the second is entropy.

How many joules of energy are necessary to heat a sample of water with a mass of 46.0 grams for 0.0

46 calories (or 192, 464 joules) for each Celsius degree.

Which of these pairs of elements would most likely form non-polar covalent bonds Al and Br or Zn and Br or Br and Br or H and H

Both Br and Br and H and H form non-polar covalent bonds.

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