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Chemistry

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Shaun Lehner

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Cards in this guide (13)
The VSEPR theory is based on the idea that pairs of electrons each other

Repel

What VSEPR formulas would predict a trigonal bipyramidal shape

A^6

Identify the characteristic of a solid

deffinate size and shape

Choose the symbol that represents a reversible reaction

double arrows <---

---->.

Choose the element that is most active

Mg

What vsepr formulas would represent the most polar molecule

Ax2e2

A box with a volume of 22.4 L contains 1.0 mol nitrogen and 2.0 mol hydrogen at 0à Celsius Which of the following statements is true

the partial pressure of N2 is 101kPa

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.

VSEPR formulas would predict a tetrahedral shape

AX4

VSEPR formulas would predict a trigonal planar shape

AX3

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.

Choose the best definition for this symbol. (s)

Solid

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