Quiz 28 Flashcards
(25 cards)
1
Q
- Which of the following represents the smallest length?
1.2 cm
0.072 m
14 mm
23 dm
A
1.2 cm
2
Q
- Which of the following represents the longest time?
12 min
0.37 hrs
960 sec
4.73 dasec
A
960 sec
3
Q
- Which of the following represents the highest temperature?
42°C
305K
100°F
all are same
A
42°C
4
Q
- Common table salt melts at 800°C. The corresponding °F temperature is
873F
1472°F
527°F
427°F
A
1472°F
5
Q
- In 73 grams there are ___ mg.
73,000
7,300
0.073
0.730
A
73,000
6
Q
- Which of the following is the same volume as 500 ml?
0.05L
5000 dL
50 cL
5 kL
A
50 cL
7
Q
- A nanometer (nm) is ____ times _____ than a millimeter(mm).
10³ greater
10E6 greater
10³ smaller
10E6 smaller
A
10E6 smaller
8
Q
- One gallon of whiskey contains about ____ ml.
1000
946
236.5
3785
A
3785
9
Q
- 0 K is the same temperature as
273°C
0°C
-459°F
-459°C
A
-459°F
10
Q
- Which of the following is not a derived unit?
miles/hour
feet/second
cm³
kilogram
A
kilogram
11
Q
- In the number 0.00412 there are ___ significant figures.
6
5
3
4
A
3
12
Q
- The number 0.00724 rounded off to two significant figures is
0.00
0.0
0.0072
0.72
A
0.0072
13
Q
- Two unknowns, A and B, have the same density and boiling point. Which of the following statements must be true?
A and B are the same
A and B may be the same
A and B are different
all are possible answers
A
A and B may be the same
14
Q
- In two molecules of Ba(OH)2 there are ___ O atoms.
one
two
four
seven
A
four
15
Q
- The compound MnCl2 contains ___ different types of atoms.
five
two
three
four
A
two
16
Q
- In the compound Ba3(PO4)2 there are a total of ___ atoms.
five
twelve
thirteen
ten
A
thirteen
17
Q
- The number of protons in one atom of He-4 is the same as in
Li-4
He-5
Be-7
none of these
A
He-5
18
Q
- The number of neutrons in an atom of P-32 is
32
17
15
47
A
17
19
Q
- An isotope of arsenic used to locate brain tumors has 41 neutrons. The designation of the isotope is
As-41
Ar-41
As-74
Ar-74
A
As-74
20
Q
- The electronic configuration of Si is
1s²2s²2p63s²3p²
1s²2s²2p63s4
1s²2s²2p63p4
1s²2s²2p63s²3p3
A
1s²2s²2p63s²3p²
21
Q
- An element with the general electron configuration ns²np5 could be
N
Li
I
Sr
A
I
22
Q
- The element with the electron configuration 1s²2s²2p4 is
O
S
Ne
N
A
O
23
Q
- The element Al has a total of ___ electrons in p orbitals.
13
9
1
7
A
7
24
Q
- Which of the following elements has the most number of total electrons in p orbitals in its electron configuration?
F
Al
Ge
Sr
A
Sr
25
25. Each of the following atoms is expected to form a positive ion except
aluminum
strontium
phosphorus
francium
phosphorus
