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Human Anatomy & Physiology > NOTES CHEMISTRY > Flashcards

NOTES CHEMISTRY Flashcards

0
Q

are not laws of nature and cannot be absolutely proven,represent the best explanation at the present time.

A

theory

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1
Q

can be used to make more predictions and suggest more experiment until a consistent explanation or theory is arrived.

A

Hypothesis

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2
Q

cannot be changed or broken down into anything simpler.

A

element

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3
Q

cuprum

A

copper

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4
Q

ferrum

A

Iron (Fe)

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5
Q

hydragyrum

A

Mercury(Hg)

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6
Q

Kalium

A

Potassium(K)

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7
Q

Angentum

A

Silver(Ag)

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8
Q

wolfram

A

Tungsten(w)

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9
Q

In talking about degree of uncertainty in a measurement, the words used are:

A

Accuracy and Precision

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10
Q

how close to a true value a given measurement is

A

accuracy

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11
Q

how well a number of independent measurement agree with one another

A

precision

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12
Q

Characteristics of Alkali metals:

A
  • Group 1A
  • H(1), Li (3), Na (19),K(20),Rb((37),Cs(55)Fr(87)
  • soft silvery metals
  • All react rapidly, often violently with water to form more alkaline or basic.
  • never found in nature in the pure state
  • only found in combination with other elements.
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13
Q

Name 11 non-metal gases

A

H He N O F Ne Cl Ar Kr Xe Rn

1) H 2)He 3)N 4)O 5)F 6)Ne
7) Cl 8)Ar 9)Kr 10)Xe 11)Rn

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14
Q

Non-metal element in liquid form

A

Br (Bromine)

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15
Q

Non-metal elements, solid in room temperature(5)

A

1)C 2)P, 3)S, 4)Se 5)I

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16
Q

Alkali metals (6 elements)

A

1)Li, 2)Na 3)K 4)Rb 5)Cs 6)Fr

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17
Q

halogen, corrosive, dark red liquid at room temperature

A

Br (Bromine)

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18
Q

Name alkaline earth metals (6)

A

1)Be, 2)Mg, 3)Ca 4)Sr 5)Ba 6)Ra

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19
Q

one of the noble gases used in neon lights and signs

A

neon

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20
Q

Common metals all conduct electricity and can be drawn into wires

A

Pb, Al, Cu, Au,Fe, Ag

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21
Q

Elements that are relatively abundant on earth:

A

1) O 46% 5) Mg 4.1%
2) Si 28% 6) Na 2.4%
3) Ar 8.2% 7) Be 2.2%
4) Fe 5.6% 8) K 2.1%

22
Q

Elements relatively abundance in the human body

A

1) O 2) C, 3) N, and 4)H

23
Q

used in batteries

A

Cadmium

24
Q

used in Alloys with other metal

A

Antimony

25
Q

Ten elements known since the beginning of the history

A

1) Antimony (Sb) 6)Lead (Pb)
2) Carbon (C) 7)Mercury (Hg)
3) Copper (Cu) 8)Silver (Ag)
4) Gold (Au) 9)Sulfur (S)
5) Iron (Fe) 10) Tin (Sn)

26
Q

used in smoke detectors

A

Americium

27
Q

Shiny low melting metal

A

Gallium

28
Q

How many elements were known when America was founded in 1776?

A

24 elements

29
Q

hard gray semimetal

A

Germanium

30
Q

Any characteristic that can be used to describe or identify matter is

A

Property

31
Q

Properties of an element can be classified as (4)

A

1) intensive
2) extensive
3) Physical
4) Chemical

32
Q

such characteristics or properties whose values do not depend on the size of the sample

A

Intensive Properties

33
Q

Compounds A and B are colorless gases obtained by combining sulfur with Oxygen. Compound A results from combining 6.00 g of S with 5.99 of O, and compound B results from 8.60 g of sulfur with 12.88 g of oxygen. Show that the mass ratios in the two compounds are simple multiples of each other.

A

3/2
Given: Compound A Compound B
6.00 g of S 8.60 g of S
–––––––––– = 1.001 –––––––––– = .668
5.99 g of O 12.88 of O

      1.001
       ––––– = 1.5   3/2
       .668
34
Q

Group 1A:

A

Group 1A: Alkali metals
Soft, shiny metals that react rapidly with
water to form basic (alkali) solutions.

35
Q

Characteristic or properties whose values do depend on sample size

A

Extensive Properties

36
Q

Group 2A

A

: Alkaline earth metals

Also lustrous metals, but less active than the Group 1A metals.

37
Q

Group 7A

A

: Halogens

Colorful nonmetals that occur in gas, liquid, and solid phases.

38
Q

Group 8A:

A

Noble gases

Very low-reactivity gases.

39
Q

Metals have the following characteristics:

A

luster, or shiny Metals have the following characteristicsappearance
malleable (can be pounded into thin sheets without breaking)
ductile (can be pulled into the shape of thin wires)
good conductors of heat and electricity

40
Q

Main group element

A

an element in the two groups on the left and the six groups on the right of the periodic table (Groups 1-8 A).

41
Q

Inner transition metal element:

A

an element in the 14 groups shown separately at the bottom of the periodic table

42
Q

Transition metal element

A

an element in the 10 groups in the middle of the periodic table

43
Q

Scientific notation:

A

a system in which a large or small number is written as a number between 1 and 10 times a power of 10

44
Q

Mass

A

: the amount of matter in an object

45
Q

Matter

A

: a catchall term used to describe anything you can touch, taste, or smell

46
Q

weight

A

is a measure of the pull of gravity on an object.

47
Q

1 gram = kg = kg

A

0.001 kg = 1.0 10‾³ kg

48
Q

1 milligram (1 mg) = ?g

A

1 milligram (1 mg) = 1.0 10‾³ g

49
Q

1 microgram (1µg) =?g

A

1 microgram (1µg) = 1.0 x 10‾⁶ g

50
Q

Volume

A

,the amount of space occupied by an object, is measured in SI units by the cubic meter, abbreviated

51
Q

1 m³ = ? dm³

A

1000 dm³

52
Q

1000 dm³ = cm³

A

1,000,000 cm³

53
Q

1,000,000 cm³ = gal

A

264.2 gal

Human Anatomy & Physiology (4 decks)

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