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WorksheetsBiochem 1st Partial Review
Total questions: 34
Worksheet time: 38mins
Smallest unit of matter that maintains constant properties.
Atom
Neutron
Proton
Element
An atom that has gained electrons is called
Anion
Cation
Isotope
Neutron
An atom that has lost electrons has what type of charge?
Neutral
Negative
Positive
An atom with 10 protons, 12 neutrons, and 11 electrons has an atomic mass of:
10
21
22
23
Malleability is a characteristic of
Metals
Nonmetals
Metalloids
Noble gases
They are poor conductors of heat and electricity
Metals
Nonmetals
Metalloids
Noble gases
Which of the following is the most electronegative?
Fluorine
Chlorine
Bromine
Iodine
Which of the following has the largest atomic radius?
Beryllium
Magnesium
Potassium
Rubidium
Which of the following has the lowest ionization energy?
Fluorine
Oxygen
Nitrogen
Carbon
Which of the following metals is the least reactive?
Iron (Fe)
Cobalt (Co)
Nickel (Ni)
Copper (Cu)
These elements have 8 valence electrons and are therefore unreactive.
Halogens
Metalloids
Noble Gases
Metals
Quantum number that describes an electron's energy level
principal, "n"
form "l"
magnetic "m"
spin "s"
Quantum number that describes an electron's sublevel
principal, "n"
form "l"
magnetic "m"
spin "s"
Quantum number that describes an electron's specific orbital
principal, "n"
form "l"
magnetic "m"
spin "s"
What are the possible values for quantum number l?
1-7
s, p, d, f
+1/2, -1/2
2,6,10,14
How many electrons can fit in one orbital?
1
2
3
6
The carbon atoms shown in the figure have what type of hybridization?
sp
sp2
sp3
sp4
How many sigma bonds are there in the structure shown?
4
5
6
7
What type of hybridization do the carbons shown in the structure have?
sp
sp2
sp3
sp4
How many sigma bonds are there in this structure?
13
14
15
16
An atom has an atomic number of 7, atomic mass of 12, and electric charge of +2. How many protons does it have?
5
7
12
9
An atom has an atomic number of 7, atomic mass of 12, and electric charge of +2. How many neutrons does it have?
5
7
12
9
An atom has an atomic number of 7, atomic mass of 12, and electric charge of +2. How many electrons does it have?
5
7
12
9
What is always needed in a hydration reaction?
H2O
H2O + X2
H2O + HX
H2O + H2SO4
Markovnikov's Rule tells us that in hydration and hydrohalogenation reactions...
the H will be added to the carbon with the most hydrogens
the H will be added to the carbon with the least hydrogens
the H will be removed to the carbon with the most hydrogens
the H will be removed to the carbon with the least hydrogens
Reaction that adds chlorine or bromine to an alkene.
Hydration
Halogenation
Halohydrin formation
Hydrohalogenation
Reaction that removes water from an alcohol to form an alkene
Hydration
Dehydration
Halogenation
Dehydrohalogenation
A halohydrin in formed by
adding H2O and a halogen to an alkene
adding a halogen to an alkene
adding hydrogen and a halogen to an alkene
adding H2SO4 and a halogen to an alkene
What are the oxidation numbers of Cu and O in the compound Cu2O?
Cu = +2, O = -2
Cu = +1, O = -2
Cu = -2, O = +2
Cu = -1, O = +2
In a redox reaction, if an element's oxidation number decreases then it said that that element was
oxidized
reduced
unchanged
neutralized
In a redox reaction, if an element's oxidation number increases then it said that that element was
oxidized
reduced
unchanged
neutralized
The oxidizing agent is the element that
was reduced
was oxidized
gained electrons
lost electrons
The reducing agent is the element that
was reduced
was oxidized
gained electrons
lost electrons
What are the oxidation numbers for Na and Cl in the compound NaCl
Na = +1, Cl = -1
Na = -1, Cl = +1
Na = +2, Cl = -2
Na = -2, Cl = +2
