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A Relatively Painless Look at Chemistry
Salts are:
An anion is:
A Relatively Painless Look at Chemistry
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General Chemistry
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1
An anion is:
is a neutrally charged ion
none of the above
a positively charged ion
a negatively charges ion
2
Salts are:
will always raise blood pressure
dissolve in water to become electrolytes
none of the above
the same as acids and bases
3
Inorganic substances include
water, electrolytes, and most acids and bases
carbohydrates, lipids, and proteins
2 and 3
Ca2+, K+, Mg2+, and Cl-
4
ions are:
atoms that have gained or lost electrons
atoms that have gained or lost neutrons
none of the above
atoms that have gained or lost protons
5
In an exchange reaction:
energy is balanced between input and release
energy is required
none of the above
energy is not required
6
Something has mass in space or on the ground but only has weight on the ground
True
False
Neither of the above
Both of the above
7
a pH lower than 7 is:
none of the above
acidic
basic
neutral
8
Neutrons
none of the above
are arranged in shells and like to be filled
have no charge and and an atomic weight of 1
have a positive charge and no weight
9
96% of all living organisms are made up of:
Water
C, O, H, N
Protein
Ca2+, K+, Na+
10
The atomic weight is determined by:
the number of protons and neutrons
the number of protons
none of the above
the number of electrons
11
Acids are:
both proton donor and acceptor
Proton acceptors
Proton donors
none of the above
12
The atomic number of is the number of:
electrons
protons and neutrons
protons
elements
13
Buffers
keep the pH more toward neutral
all of the above
resist changes in pH
are weak acids and weak bases
14
C, H, O, N are important because:
They make up 96% of all living organisms
They are all inorganic.
They are all found in carbohydrates
They are found in bones.
15
Solvent is:
none of the above
the liquid that dissolves the solid
the solid and the liquid mixed together
the solid that is dissolved in the liquid
16
The first law of thermodynamics
both of the above
states that energy is not conserved
states that energy is conserved
none of the above
17
hydrophilic is:
associated with oils, fats, and lipids
water loving
1 and 2
associated with polar substances
18
Salts are:
are usually compounds such as NaCl
all of the above
electrolytes in solution
ions in solution
19
Inorganic Chemistry
does not involve hydrocarbons
involves water, salts and some acids and bases
involves carbon
1 and 3
20
a cation is
is a positively charged ion
is a neutrally charged atom
is none of the above
is a negatively charged ion
21
Anything that takes up space and has mass is defined as:
An Atom
None of the above
Matter
An Element
22
Valence electrons
spin around the outside of the atom
all of the above
give the atom reactivity
have almost no weight
23
Calcium ions normally have a:
None of the above
1+ Charge
2+ Charge
3+ Charge
24
electrolytes
all of the above
milk fever is a loss of Ca2+, threating life
are not regulated well in CRF and ARF
are important in IV fluids
25
Ionic bonds involve:
the sharing of electrons
None of the above
the exchange of electrons
the weak attraction between hydrogens
26
The reason that high hydrogen ion concentration is low pH is:
none of the above
is because bases have a high pH
is based on buffering capacity
is mathematical in nature
27
Two or more atoms joined together that are different are:
None of the above
both 1 and 2
a compund
a molecule
28
Hydrophobic is associated with:
1 and 2
water loving
fats, lipids, oils
water hating
29
a compound has
is exactly the same as a molecule
none of the above
the same atoms making it up
different atoms making it up
30
Temperature decreases:
none of the above
will not change the rate of a reaction
will increase the rate of reaction
will slow the rate of reaction
31
An increase in temperature
none of the above
results in no change in that rate of a chemical reaction
decreases that rate of a chemical reaction
increases the rate of a chemical reaction
32
The 1st law of thermodynamics:
none of the above
States that energy is conserved.
States that electrons are positively charged
States that energy is important.
33
Synthesis reactions:
take and release energy
none of the above
take energy
release energy
34
Atoms are:
the smallest unit of an element
are electrolytes when they don't gain or lose electrons
None of the above
Have an atomic weight of 1
35
Polar means:
means that there is an exchange of electrons
there is a slightly positive end and a slightly negative end
means that there is an exchange of electrons
none of the above
36
In a chemical reaction the pieces going into it:
the products
the reactants
the catalyst
none of the above
37
Elements are:
Found on a Periodic Table
2 and 3
Atoms
cannot be broken down any further, normally
38
An example of a decomposition reaction is:
the breakdown of glycogen to glucose molecules
the breakdown of proteins to amino acids
the making of glycogen from glucose molecules.
both 2 and 3.
39
Beer, wine, pickles, and gastric juice are examples of:
neutral things
basic things
acidic things
alkaline things
40
Who developed the light bulb?
Thomas Edison
none of the above
Jack London
Albert Einstein
41
Properties of water include:
a high heat of vaporization
a low freezing point
great transport ability
both 1 and 2
42
hydrophobic is:
polar substances
fats or lipids
non-polar substances
none of the above
43
The building up from Protein from Amino Acids is:
none of the above
an example of a synthesis reaction
an example of an exchange reaction
an example of a decomposition reaction
44
Blood is:
a pH of 7.4 and therefore slightly basic
none of the above
acidic
neutral
45
A molecule is:
has the same properties as the constituent atoms
1 and 2
2 or more atoms of alike or different elements
has different properties than its constituent atoms
46
Organic means?
it contains carbon
It has no pesticides
it does not contain carbon
you buy it from a Co-op?
