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Environmental Chemistry > Heavy Metals in the environment > Flashcards

Heavy Metals in the environment Flashcards

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1
Q

Mercury

A

Liquid metal that slowly voitailizes at room temperature and forms amalgams with other metals

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2
Q

Liquid metal that slowly voitailizes at room temperature and forms amalgams with other metals.

A

Mercury

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3
Q

Uses of Mercury

A

Great electrodes and dental amalgam fillintgs, gold mining

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4
Q

Great electrodes and dental amalgam fillintgs, gold refinement

A

Uses of Mercury

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5
Q

Modern Mercury Release

A

burning coals that have a lot of it, municipal waste

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6
Q

burning coals that have a lot of it, municipal waste

A

modern mercury release

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6
Q

mercury chronic poisoning symptoms

A

twitching, madness, and even paralysis

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7
Q

twitching, madness, and even paralysis

A

mercury chronic poisoning symptoms

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8
Q

Gaseous elemental Mercury

A

inert gaseous mercury that can stay in the atmosphere for years

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9
Q

inert gaseous mercury that can stay in the atmosphere for years

A

Gaseous elemental Mercury

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10
Q

Mercury particulates

A

adsorbed onto areal particulates, stays in the atmosphere for a couple weeks

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11
Q

adsorbed onto areal particulates, stays in the atmosphere for a couple weeks

A

Mercury particulates

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12
Q

Reagicve gaseous merury

A

Comes in forms such as HgCl2, lasts in the atmosphere for several weeks

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13
Q

Comes in forms such as HgCl2, lasts in the atmosphere for several weeks

A

reactive gassious mercury

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14
Q

Mercury in the environment

A

becomes methylated by bacteria, making them very fat soluble., so they bioacumulate in multicelular organisms

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15
Q

becomes methylated by bacteria, making them very fat soluble., so they bioacumulate in multicelular organisms

A

Mercury in the environment

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16
Q

Symptoms of accute mercury posisoning

A

numbness, blurring, losso f vision, hearing, muscle ocrdiation, lethargy and irtibility

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17
Q

numbness, blurring, losso f vision, hearing, muscle ocrdiation, lethargy and irtibility

A

Symptoms of accute mercury posisoning

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18
Q

Mercury and pregnancy

A

the fetus is more susecpteble than the mother, resulting in severe brain damage

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19
Q

the fetus is more susecpteble than the mother, resulting in severe brain damage

A

Mercury and pregnancy

20
Q

Uses of lead

A

easy to work and noncorosive, used to seal cracks, make pipes, also used to make yellow, red, or white paints.

21
Q

easy to work and noncorosive, used to seal cracks, make pipes, also used to make yellow, red, or white paints.

A

Uses of lead

22
Q

Effects of lead

A

crosses the blood-brain barriar and inhibits development

23
Q

crosses the blood-brain barriar and inhibits development

A

Effects of Lead

24
Q

Tetraethal lead

A

a lead-ethyl compound previously used to reduce knocking in gassoline.

25
Q

a lead-ethyl compound previously used to reduce knocking in gassoline.

A

Tetraethal lead

26
Q

bioacumulation of Lead and cadmium

A

substitutes in for calcium in the bones

27
Q

substitutes in for calcium in the bones

A

bioacumulation of Lead and cadmium

28
Q

sources of cadmium

A

released during the smelting of Zinc

29
Q

released during the smelting of Zinc

A

sources of cadmium

30
Q

uses of cadmium

A

bright yellow paints and rechargable batteries.

31
Q

bright yellow paints and rechargable batteries.

A

uses of cadmium

32
Q

metallothioneins

A

protiens with lots of SH groups that grab toxic metals to prevent effects from low doses in humans

33
Q

protiens with lots of SH groups that grab toxic metals to prevent effects from low doses in humans

A

metallothioneins

34
Q

Toxcicity of arsenic

A

body converts arsenate (ArO4^-3) to arsenite (ArO3^-3) which is extremely toxic.

35
Q

body converts arsenate (ArO4^-3) to arsenite (ArO3^-3) which is extremely toxic.

A

Toxcicity of arsenic

36
Q

Arsenic poisioning

A

bidns to the sulfur in various protiens, hinhibiting energy production

37
Q

bidns to the sulfur in various protiens, hinhibiting energy production

A

Arsenic poisioning

38
Q

Sources of Arsenic

A

pesticides, coal burning, and natural contamination of groundwater

39
Q

pesticides, coal burning, and natural contamination of groundwater

A

Sources of Arsenic

40
Q

body’s arsenic disposal

A

methylates it, rendering it inert

41
Q

methylates it, rendering it inert

A

body’s arsenic disposal

42
Q

Organotin compounds

A

compounds toxicdue to tin’s similiarity to lead, formerly used in fungicides, wood preservatives, and plastic stabilizers

43
Q

compounds toxicdue to tin’s similiarity to lead, formerly used in fungicides, wood preservatives, and plastic stabilizers

A

Organotin compounds

44
Q

chromium

A

used for anti-corrosion coatings, tanning leather, and wood preservatives. Dangerous if it leaks into the environment

45
Q

used for anti-corrosion coatings, tanning leather, and wood preservatives. Dangerous if it leaks into the environment

A

chromium

46
Q

toxic chrominum forms

A

Forms CrO4^2- or Cr2O7^2-, made using Chromium IV

47
Q

Forms CrO4^2- or Cr2O7^2-, made using Chromium IV

A

toxic chrominum forms

Environmental Chemistry (31 decks)

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