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CH. 7.1 The Chemistry of Matter Flashcards | StudBud
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CH. 7.1 The Chemistry of Matter
CH. 7.1 The Chemistry of Matter
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1
The center of the atom is known as the:
membrane
neutrons
proton
nucleus
2
What form of matter has definite weight, volume and shape?
liquid
sublimation
gas
solid
3
The type of chemistry that deals with all matter that is now living or was alive at one time is known as:
organic chemistry
biochemistry
active chemistry
inorganic chemistry
4
A change in a substance that creates a new substance w/ different characteristics from those of the original substance:
physical change
chemical structure
chemical change
phase change
5
Which of the following are materials that dissolve and break down large molecules into smaller ones?
carbohydrates
lipids
proteins
enzymes
6
All of the following statements about carbohydrates are true EXCEPT:
they contain a combination of carbon hydrogen & nitrogen aranged in a chain
they are used by the body to store energy
they include monosaccharides such as glucose
they play a key role in metabolism
7
The type of chemistry that deals with matter that was never living and does not contain carbon is called:
inorganic chemistry
active chemistry
biochemistry
organic chemistry
8
The chemical behavior of an atom depends mostly on the:
number of neutrons and protons in the nucleus
number of electrons in the innermost shell
number of neutrons only
number of electrons in the outermost shell
9
What number identifies how many protons are in a single atom of an element on the periodic table?
atom number
chemical number
atomic number
electron number
10
The smallest complete unit of an element is called a(n):
neutron
proton
electron
atom
11
The molecular weight of each element is determined by the:
protons
protons and electrons
neutrons and electrons
protons and neutrons
12
Which of the following is NOT one of the three major biochemical compound groups in the body?
carbohydrates
fats
lipids
proteins
13
What are the basic materials that the body uses to construct and renew itself?
carbohydrates
proteins
saccharides
lipids
14
All of the following statements are true about physical changes EXCEPT:
chemical structure does not change
a new substance possessing different material composition is created
freezing water to form ice cubes is an example of a physical change
changes always involve either the gain or loss of energy
15
The unifying concept used to organize elements and their similarities is called the:
element
atomic number
periodic table
periodic law
16
A simple unit of a carbohydrate is called a:
disaccharide
polysaccharide
monosaccharide
saccharide
17
When positive and negative ions join, they are held together by a(n):
oxidation-reduction reaction
ionic bond
compound
covalent bond
18
Matter with definite weight, but indefinite volume and shape are:
gas
compound
solid
liquid
19
Which of the following is a process in which a substance gains an electron and oxygen is released?
reduction
covalent bonding
ionic bonding
oxidation
20
What is the smallest particle of a compound that contains all of the chemical properties of that compound?
element
atom
molecule
neutron
21
All of the following statements about the Period Table of Chemical Elements are true EXCEPT:
the unifying concept used to organize elements is called scientific shorth
Dmitri Mendeleev and Lothar Meyer found ways of arranging elements
the atomic number is the primary basis for organization
there are 92 naturally occurring elements
22
Groups of monomers that bond together are called:
monomers
disaccharides
saccharide
polymers
23
Which of the following have a positive electrical charge and identify the atom?
neutrons
protons
ions
electrons
24
How many naturally occurring elements are there?
82
72
102
92
25
All of the following statements about compounds are true EXCEPT:
have unique chemical and physical characteristics
created by the union of two different elements
more than four million chemical compounds have been identified
are basic units of matter that cannot be broken down into simpler substance
26
The scientific study of matter, physical & chemical changes affecting matter & the energy changes that accompany it:
chemistry
histology
physiology
anatomy
27
The process of a solid or gas changing states without becoming a liquid is known as:
energy
chemical change
physical change
sublimation
28
Which of the following is created by chemically uniting two different elements?
atom
element
molecule
compound
29
All of the following statements about amino acids are true EXCEPT:
they join together in chains to form proteins
they dissolve and break down large molecules
they consist of carbon, oxygen, hydrogen and nitrogen
there are 22 common amino acids
30
What types of atoms are not missing any electrons in their outermost orbit shell?
molecules
unstable atoms
stable atoms
compound atoms
31
What are the basic units of matter that cannot be broken down into simpler substances by any chemical reaction called?
atoms
electrons
neutrons
elements
