Intra/intermolecular forces Flashcards

1
Q

An idea that matter is composed of tiny particles that are always in motion.

A

Kinetic Molecular Theory

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2
Q

Postulates of
Kinetic Molecular Theory

Matter is made up of particles that are constantly in motion. This energy is called _______

A

kinetic Energy

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3
Q

Postulates of
Kinetic Molecular Theory

The amount of kinetic energy in a substance is related to its _____. Increased in _____ means _________.

A

temperature, greater speed

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4
Q

Postulates of
Kinetic Molecular Theory

_____ changes happen when the _____ of the substance changes sufficiently.

A

phase, temperature

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5
Q

Postulates of
Kinetic Molecular Theory

There are attractive forces in between particles called ________. The strength of these particles increases as particles get closer together.

A

intermolecular forces

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6
Q

5 postulates of kinetic molecular theory

A

kinetic energy, temp, space, phases, intermolecular forces

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7
Q

two kinds of forces/attractions

A

intramolecular & intermolecular

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8
Q

(within molecules) force that hold the atom together in a molecule

A

intramolecular

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9
Q

1.

force that stabilize each other

A

intramolecular

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10
Q

force happen between molecules

A

intermolecular

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11
Q

Formed between atoms with similar electronegativities-the affinity or desire for electrons.

A

covalent bond

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12
Q

2 types of intramolecular force

A

ionic & covalent bond

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13
Q

what is the electronegativity of ionic bond

A

greater than 2.0

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14
Q

2 types of covalent bond

A

polar & non-polar bond

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15
Q

Formed between same atoms or atoms with very similar electronegativities.

A

non-polar bond

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16
Q

electronegativity of non-polar bond

A

less than 0.5

17
Q

Examples are one type atoms like N2, Cl2, F2, Br2 and those that contain only of hydogen.

A

non-polar bond

18
Q

Formed when atoms of slightly different electronegativities.

A

polar bond

19
Q

electronegativity of polar bond

A

0.5-1.7

20
Q

types of intermolecular forces

A

dipole-dipole, ion-dipole, hydrogen, london dispersion – forces

21
Q

attraction between one + of polar end & vice versa

A

dipole-dipole

22
Q

force between ion and polar

A

ion-dipole

23
Q

force that happen mostly on solutions

A

ion-dipole

24
Q

strongest intermolecular force

A

ion-dipole

25
Q

like dipole-dipole but happens in hydrogen

A

hydrogen

26
Q

weakest of intermolecular force and happens between all tyles of molecules

A

london dispersion

27
Q

the more electrons the _____. therefore, ______

A

higher london dispersion, higher boiling point

28
Q

next lesson

A

heehee