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Chemistry

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Brandon Pagac

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Cards in this guide (12)
Which of the following describes a cytotoxic autoimmune reaction

Which of the following (what)?

Is covalent force an intermolecular force

No, covalency does not have its own intermolecular force

Which term describes the describes the disorder of random molecular motion

Entropy

Why are prefixes not needed in naming ionic compounds

Ions combine in only one ratio, so prefixes are not needed.

How does a lone pair distort the molecular shape

A lone pair of electrons takes up space despite being very small. Lone pairs have a greater repulsive effect than bonding pairs. This is because there are already other forces needing to be taken into consideration with bond pairs.

So to summarize: Lone pair-lone pair repulsion > lone pair-bond pair repulsion > bond pair-bond pair repulsion. This makes the molecular geometry different.

What shape would a molecule with two bound groups and two lone pairs have

The correct answer is: Bent.

What happens to the atomic radius when an electron is lost

The positive ionic radius is smaller than the neutral atomic radius

What molecule can form hydrogen bonds with others like it

nh3

What elements have the highest and lowest ionization energy

Helium has the highest first ionization energy and francium has the lowest first ionization energy.

If the reactants of a reaction have one S and four O atoms what will the product have

One S atom and four O atoms

What is the correct electron configuration for an element with 5 electrons in the 3d energy sublevel

1s22s22p63s23p64s23d5

What is a gluon

A particle that binds quarks to one another. (Apex)

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