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AP Biology: Chemistry Basics Flashcards | StudBud
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AP Biology: Chemistry Basics
AP Biology: Chemistry Basics
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AP Biology
Flashcards
14 cards
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Questions
14
Answers
1
A hydrogen ion is also known as a(n) ________ .
proton
cell
neutron
electorn
2
An electron has a neutral charge (0)
True
False
3
Which of the following can be found in the nucleus of an atom?
neutrons only
electrons and neutrons
protons and electrons
protons and neutrons
4
The following bonds are __________ .
single covalent bonds
double covalent bonds
hydrogen bonds
double ionic bonds
5
Which of the following is NOT a compound?
O2
NaCl
C6H12O6
H2O
6
What is an atom?
basic unit of life
basic unit
a substance that can not be broken down
basic unit of mass
7
Why is atomic mass usually not a whole number?
i was absent that day
to acound for the mass of electrons
it is an average based on isotopes
to be more precise
8
The overall charge of the nucleus of an atom is neutral.
False
True
9
A proton has a positive charge (+)
True
False
10
A characteristic of an acid is that it contains a high concentration of ______________ .
hydrogen ions (H+)
acid
hydroxide ions (HO-)
electrons
11
The atomic number represents the total number of __________ .
subatomic particles in an atom
protons and neutrons
electrons
protons
12
How many hydrogen atoms are in methane (CH
4
)?
1
not enough information
4
2
13
Hydrogen bonds between molecules are incredibly ___________ .
weak
strong
cool
annoying
14
Which of the following molecules is held together by ionic bond(s)?
C6H12O2
NaCl
H2O
Cl2
