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Ch.2 Basic Chemistry Flashcards | StudBud
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Ch.2 Basic Chemistry
Ch.2 Basic Chemistry
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#BasicChemistry #Anatomy
Flashcards
35 cards
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Questions
35
Answers
1
Biochemistry is “wet” chemistry. What does this mean?
Chemical reactions in the body are in a humid enviroment.
Chemical reactions in the body are in a watery environment.
I dont care
Chemical reactions happen in a dry area in the human body.
2
Which four elements make up the bulk of living matter?
Oxygen, sulfur, calcium, and iron.
Iron, oxygen, iodine, and calcium.
Hydrogen, oxygen, carbon, and nitrogen.
Carbon, calcium, sodium, and oxygen.
3
What name is given to an unstable atom that has either more or fewer neutrons?
Radioisotope.
Cosmogenic isotopes.
Anthropogenic isotopes.
Radiogenic isotopes.
4
When do Ionic bonds form?
When electrons are transferred from one atom to another.
When a single electron becomes stable.
When atoms are transferred from one electron to another.
When two electron pairs form a double bond together
5
Energy that is played in constant movement of the tiniest particles
Potential
Kinetic
6
An atom has 5 neutrons, 4 protons, and 4 electrons. What is its atomic number?
8, with no element
8, with elements
No atomic number
9 with element
7
Do the total numbers of atoms remain the same after a chemical reaction?
No
Yes
8
The component of proteins and nucleic acids
Nitrogen
Sodium
Sulfur
Iron
9
Which reaction defines Synthesis reactions?
AB + C --> AC
AB + CD --> AD
A + B --> AB
AB --> A + B
10
How do DNA and RNA differ from each other in the kinds of bases and sugars they contain?
RNA contains bases A, T, G, and C, and the sugar deoxyribose
DNA contains bases A, T, G, and C, and the sugar deoxyribose
11
What is the maximum number of electron shells in an atom?
8
4
7
18
12
____ elements are known with certanity.
100
118
113
92
13
Where are triglycerides found?
Triglycerides are abundant in the trans fat tissue.
Triglycerides are abundant in the saturated fat tissue.
Triglycerides are abundant in subcutaneous fat tissue.
Triglycerides are abundant in the cell tissue .
14
Define molecule
Group of atoms bonded together.
Group of molecules bonded together.
Group of carbon dioxide bonded together.
Group of electrons bonded together.
15
____ exists in solid, liquid, and gaseous states.
Matter
Elements
Liquids
Energy
16
Do protons have a positive charge?
Yes
No
17
Define Energy
Mixture of nothing
Stored in chemical substances
Massless
Mixture of gases
18
_____orient themselves toward polar molecules or charged particles
Hydrogen bonds
Polar molecules
Oxygen
Carbon dioxide
19
Why is ATP so vital to body cells?
It helps us become immune to germs and bacteria.
It helps us become less likely to have a long term disease.
I have no idea
It's a very useful form of energy for all body cells.
20
Which part is the proton?
The blue balls.
The red balls.
I dont know.
The yellow balls.
21
Define atoms
A "two letter" chemical
Structural variations
Building blocks of particles
Atomic mass
22
Describe the Periodic Table
Odd shaped checkerboard that appears in Appendix B.
Odd shaped checkerboard that appears in Appendix A.
23
What does this photo show?
Hydrogen bonding between polar water molecules.
Hydrogen bonding between oxygen molecules.
24
Can energy change physically and chemically?
Yes
No
25
________ do not alter the basic nature of a substance
Chemical Change
Physical Change
26
____have a definite volume, but they conform to the shape of their container.
Solids
Liquid
Mass
Gas
27
________occur whenever atoms combine with or dissociate from other atoms.
Chemical bond
Chemical reaction
28
Which is a proton donor?
Acids are proton donors.
Bases are proton donors
29
Does electrical energy store bonds of chemical substances?
True
False
30
What kind of bond forms between water molecules?
Chemical bonds
Covalent bonds
Hydrogen bonds
Ionic bonds
31
What is formed when a carbon atom shares its 4 valence-shell electrons with 2 oxygen atoms?
Carbon dioxide
Hydrogen
Methane
Water
32
What type of reaction does this represent?
Decompostion
Exchange
Chemical
Mechanical
33
How can you indicate that a chemical reaction is reversible?
Shown my one reaction arrow
Shown by double reaction arrows.
34
_______ travels in waves
Mechanical energy
Chemical energy
Electrical energy
Radient energy
35
Define Matter
The constant movement in particles
The "stuff" of the universe
Movement of charged particles
N/A
