Water Flashcards

1
Q

What is the universal solvent?

A

Water

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2
Q

What is a solution?

A

A homogenous mixture of at least two chemicals that are both in the same physical state.

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3
Q

What is a phase?

A

A region of space where physical properties are uniform.

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4
Q

What are the three stages of a solution?

A

Unsaturated, Saturated and (temporarily) super saturated

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5
Q

What is an electron shell?

A

A collection of orbitals with the same value for n.

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6
Q

How many electrons can the electron shell n have?

A

n^2

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7
Q

What shape are p-orbitals

A

dumbell

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8
Q

what shape are d-orbitals

A

four-leaf clover

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9
Q

How many electrons can be in each orbital?

A

2

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10
Q

What is Coloumbs law?

A

The force of attraction between the nucleus and an electron depends on the net nuclear charge and the distance between the two.

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11
Q

What is atomic radius?

A

Half of the distance between two chemically bonded atoms.

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12
Q

What is an isoelectric series?

A

A group of atoms with the same number of electrons.

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13
Q

Which electrons are removed first?

A

The ones from the least filled orbital with the largest quantum number.

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14
Q

Where are electrons added to first?

A

The lowest quantum orbital that is partially filled

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15
Q

What are the thee types of chemical bond?

A

Ionic, metallic and covalent

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16
Q

What are ionic bonds?

A

two ions bonded via their difference in charge

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17
Q

What are covalent bonds?

A

two particles sharing electrons

18
Q

What are metallic bonds?

A

Occur when many particles are bonded together

19
Q

Which electrons are involved in bonding?

A

Valence electrons

20
Q

Which subshells are full in an octet?

21
Q

In a bond where do the electrons reside?

A

Closer to the more electronegative atom

22
Q

What are resonance lewis structures?

A

Structures of the same molecule with different electron configurations.

23
Q

What is electron domain geometry?

A

The arrangement of electron domains around a central atom

24
Q

When does mollecular geometry = electron geometry

A

when all electron domains are bonds

25
What are sigma bonds?
Covalent bonds where electrons are dispersed evenly
26
What are pi bonds?
A bond with a sideways overlap of two p-orbitals.
27
What is dissociation?
Splitting a solid into ions.
28
What are strong electrolytes?
Electrolytes that dissociate completly
29
What are weak electrolytes?
Electrolytes that partially dissociate.
30
What are the colligative effects? (4)
Vapour pressure lowering, boiling point elevation, freezing point depression and osmosis.
31
What is osmosis?
A spontaneous movement of water through a semi-permeable membrane.
32
What is a monoprotic acid?
An acid that has one H+ to donate
33
Define amphoterism
A substance that can donate and accept a proton
34
What is a conjugate pair?
An acid/base pair that will donate/accept a proton respectively.
35
What is an example of a strong base?
Hydroxides
36
What are the seven strong acids?
HCl, HBr, HI, HNO3, HClO3, HClO4 and H2SO4
37
What is the product of an acid base reaction?
A salt
38
What is a buffer?
A solution that resists a pH change
39
What do buffer solutions contain?
Either a weak base and conjugate acid or a weak acid and a conjugate base.
40
What is a titration?
A controlled chemical reaction used for analytical, quantitative measurements of how much solute is in a solution.