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Chemistry > 102.6 > Flashcards

102.6 Flashcards

(45 cards)

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1
Q

The term used to identify anything that occupies space and has weight is called:

A. A gas
B. Matter
C. A solid
D. Organic

A

Matter

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2
Q

The scientific study of matter and the physical and chemical changes of matter is known as:

A. Physics
B. Anatomy
C. Chemistry
D. Psychology

A

Chemistry

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3
Q

All matter that is now living or was alive at one time, with carbon present, falls within the scientific division

A. Physics
B. Anatomy
C. Organic chemistry
D. Inorganic chemistry

A

Organic chemistry

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4
Q

All matter that is not alive, has never been alive and does not contain carbon, such as rocks, water and minerals falls within the study of:

A. Physics
B. Anatomy
C. Organic chemistry
D. Inorganic chemistry

A

Inorganic chemistry

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5
Q

A solid is defined as:

A. Matter with definite weight, volume and shape
B. Matter with no definite weight but indefinite volume and shape
C. Matter with definiteweight and volume but nodefinite shape
D. Matter with definite weightbut indefinite volume and shape

A

Matter with definite weight, volume and shape

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6
Q

Matter with definite weight and volume but no definite shape is called:

A. Gas
B. Solid
C. Liquid
D. Organic

A

Liquid

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7
Q

Matter with definite weight but indefinite volume and shape is called:

A. Organic
B. A gas
C. A solid
D. A liquid

A

A gas

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8
Q

Why is skin a solid?

Select one:
A. Has definite weight, volume and shape
B. Has indefinite weight, volume and shape
C. Has definite weight and volume but no. definite stape
D. Has definite weight but indefinite volume and shape

A

Has definite weight, volume and shape

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9
Q

Which of the following items has/have definite weight and volume but no definite shape?

A. Hair
B. Oxygen
C. Lotions
D. Ice cubes

A

Lotions

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10
Q

Which of the following is NOT an example of a physical change?

A. Breaking a glass
B. Iron changing to rust
C. Performing a haircut
D. Performing a thermal style

A

Iron changing to rust

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11
Q

Water freezing and becoming ice is an example of what type of change?

A. Physical
B. Chemical
C. Elemental
D. Molecular

A

Physical

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12
Q

Which of the following conditions is an example of chemical change?

A. Water to ice
B. Water to steam
C. Raindrops turning to snow
D. Oxygen and hydrogen combining to form water

A

Oxygen and hydrogen combining to form water

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13
Q

Basic substances that cannot be broken down into simpler substances are called:

A. Solids
B. Elements
C. Molecules
D. Compounds

A

Elements

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14
Q

Skin comprises two solids, which are carbon and sulfur and three gases, which are hydrogen, nitrogen and:

A. Neon
B. Oxygen
C. Helium
D. Propane

A

Oxygen

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15
Q

There are 118 known elements; those above which element are synthetic?

A. 92nd
B. 108th
C. 112th
D. 118th

A

92nd

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16
Q

The atomic number of a particular element indicates:

Select one:
A. The number of protons in a single atom
B. The number of neutrons in a single atom
C. The number of eléctrons in a single atom
D. The number of atoms in a single element

A

The number of protons in a single atom

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17
Q

The chemical symbol for carbon is:

A. C
B. Ca
C. Cb
D. Co

A

C

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18
Q

What is the smallest complete unit of an element?

A. Atom
B. Molecule
C. Compound
D. Amino acid

A

Atom

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19
Q

Atoms have three main parts: protons, neutrons and:

A. Neutrons
B. Elements
C. Electrons
D. Compounds

20
Q

Protons have which type of electrical charge?

A. None
B. Neutral
C. Positive
D. Negative

21
Q

Neutrons have which type of electrical charge?

A. None
B. Chemical
C. Positive
D. Negative

22
Q

Electrons have which type of electrical charge?

A. None
B. Neutral
C. Positive
D. Negative

23
Q

The simplest atomic structure is:

A. Carbon
B. Oxygen
C. Sulfur
D. Hydrogen

24
Q

Atoms that are not missing any electrons in their outer shell and are considered electrically neutral are called:

A. Stable
B. Unstable
C. A neutron
D. A molecule

25
Why do unstable atoms seek other atoms with which they can share electrons? A. To become a protein B. To become amino acids C. To get rid of extra electrons D. To complete their outer shell
To complete their outer shell
26
Two or more atoms joined together by a chemical bond is a(n): A. Protein B. Neutron C. Electrón D. Molecule
Molecule
27
When two hydrogen atoms combine with one oxygen atom, the result is a water molecule, which is a(n): A. Atom B. Mixture C. Element D. Compound
Compound
28
When two molecules of the element oxygen have combined, it is called a(n): A. Chemical bond B. Elemental molecule C. Compound element D. Compound molecule
Elemental molecule
29
Atoms that are the same form a (n): A. Mixture B. Element C. Emulsion D. Compound
Element
30
Atoms that are different form a (n): A. Mixture B. Element C. Emulsion D. Compound
Compound
31
Pure substances are made of only one type of: A. Mixture B. Compound C. Atom or molecule D. Oxygen and hydrogen
Atom or molecule
32
Many products estheticians use are the result of chemically uniting two different elements, which is known as: A. Atom B. Mixture C. Molecule D. Compound
Compound
33
Which of the following elements is the most abundant in the earth's crust and the second most abundant element in the earth's atmosphere? A. Oxygen B. Carbon C. Hydrogen D. Nitrogen
Oxygen
34
What is the most common element in the universe? A. Sulfur B. Oxygen C. Nitrogen D. Hydrogen
Hydrogen
35
What is it called when a substance loses an electron and oxygen is acquired? A. Oxidation B. Addition C. Reduction D. Resuscitation
Oxidation
36
When a substance gains an electron and oxygen is released, the process is called: A. Oxidation B. Addition C. Reduction D. Resuscitation
Reduction
37
What are the three major biochemical compound groups in the body? A. Atoms, molecules and mixtures B. Proteins, carbohydrates and lipids C. Muscles, nerves and blood D. Hormones, enzymes and proteins
Proteins, carbohydrates, and lipids
38
The primary materials the body uses to construct and renew itself is: A. Proteins B. Lipids C. Nitrogen D. Carbohydrates
Proteins
39
Carbon, oxygen, hydrogen and nitrogen form the basis of: A. Mixtures B. Elements C. Compounds D. Amino acids
Amino acids
40
What is created when amino acids join together in chains? A. Proteins B. Elements C. Chemicals D. Compounds
Proteins
41
A bond uniting two amino acid groups that create proteins are: A. Salt bonds B. Side bonds C. Peptide bonds D. Alkaline bonds
Peptide bonds
42
A simple unit of a carbohydrate is called: A. Saccharide B. Monosaccharide C. Disaccharides D. Polysaccharides
Saccharide
43
Which of the following biochemical compounds form components that fill the intercellular spaces in the skin? A. Lipids B. Amino acids C. Carbohydrates D. Peptide bonds
Lipids
44
Water freezing and becoming ice is an example of a physical change. A. True B. False
True
45
In the process of oxidation, a substance gains an electron, and oxygen is released. A. True B. False
False

Chemistry (3 decks)

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