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GNUR 160 Exam 1
GNUR 160 Exam 1
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Questions
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Answers
1
What is Anthony's special talent???????
I can play the clarinet
I can perform a crow pose in yoga
I am a Starbucks barista
I am a genius
2
A law is a general statement that explains a large number of observations?
False
True
3
Chopping wood is an example of a chemical change.
True
False
4
What is an ionic bond?
a nonmetal + a nonmetal
a transitional metal + a metal
a metal + a metal
A nonmental + a metal
5
The statement: A farmer has 15 eggs is a qualitative statement?
False
True
6
Determine the atomic mass of B
2
O
3
Given that Boron's mass is (10.81 u) and Oxygen's mass is (about 16 u)
118.9 u
26.3 u
69.6 u
75 u
7
Convert 30 L to kl
4 L
0.03 kl
0.3 kl
0.003 kl
8
Leading zeroes are significant (when talking about sig figs)
True
False
9
A typical mercury thermometer has 0.039 mL of mercury in it, what mass of mercury is in it? (Mercury Density: 13.6 g/mL)
0.0035 g (Hg)
12 g (Hg)
0.0029 g (Hg)
0.112 g (Hg)
10
What is the modern atomic theory?
The concept that atoms play a fundamental role in chemistry
That water boiling is an example of a physical change
That a nonmental and metal make an ionic compound
That elements are molecules
11
In a solution bases like to...
exist as a diatomic molecule
do nothing, they are boring
give up hydrogen
take hydrogens
12
Chose the formula and name for the ionic compound: Mg
2+
and Cl
-
Mg2Cl Dimagnesium Chloride
MgCl2, Magnesium Dichloride
MgCl Magnesium Chloride
Mg2Cl2 Dimagnesium Dichloride
13
Express 2.80 x 10
-4
in standard notation
0.0028002
0.280
0.000280
0.00280
14
How many sig figs are in the number 3,000,000,000,001?
2
13
8
12
15
An anion is a charged element with an overall negative charge
True
False
16
Helium (He), a halogen found in group 8 is a metal
False
True
17
Which of these qualifies as matter?
Love
The word apple
Mercury (Hg)
Thoughts
18
What is a molecule?
Two seperate elements combined
A group of atoms bonded together
A compound with an overall positive or negative charge
Something in chemistry
19
A base increases the amount of H+ in a solution
True
False
20
Convert 200 Ms to ns
2,000,000,000 ns
2,000,000 ns
2,000 ns
200,000 ns
21
When looking at a periodic table, we separate metals and nonmetals using the diagonal line
False
True
22
Convert 52.09 km/hr to m/s (meters per second)
8.88 m/s
26.7 m/s
14.47 m/s
12.67 m/s
23
Convert 67 F
o
to Kelvins
292.6 K
356 K
212 K
292.1 K
24
Which formula is represented by Germanium (Ge) Dioxide
GeO
O2Ge2
Ge2O2
GeO2
25
Which is a property of an acid?
conducts electricity well
Bitter upon taste
Solid in cold
brittle at room temperature
26
How many sig figs are in 3,600,835,000
10
7
9
11
27
Name this compound: P
4
O
10
Hexaphosphorous Decaoxide
Tetraphosphorous Decaoxide
Decaoxide Tetraphosphide
Phosphorous Decaoxide
28
Electrons float away from the center of the nucleus because they weigh less than protons and neutrons.
True
False
29
Which statement(s) are examples of qualitative statements? (chose all that apply)
The cow has black and white spots
That reaction smells foul
There are 10 trees
The water looks very blue
30
Chose the three components described in the nuclear model
Electron
Proton
Neutron
mole
31
Chemistry is the study of interactions with other matter and energy
False
True
32
Name the acid: HNO
3
Nitric acid
Hydrogen nitrogen trioxide
Hydroxy Nitrogen acid
Hydro Nitric acid
