رد: كيمياء 110 بحلتها الجديد ((شرح المحاضرات))
Test bank
Chapter 1. Measurement
1. The SI unit of time is the
A. hour
B. second من جدول 1-2
C. minute
D. ampere
2. The diameter of an atom is approximately 1 x 10-7 mm. What is this diameter when expressed in nanometers?
A. 1x 10-18 nm
B. 1 x 10-15 nm
C. 1 x 10-9 nm
D. 1 x 10-1 nm
3. 6.0 km is how many micrometers?
A. 6.0 x 106 µm
B. 1.7 x 10-7 µm
C. 6.0 x 109 µm
D. 1.7 x 10-4 µm
4. The SI prefixes giga and micro represent, respectively:
A. 10-9 and 10-6.
B. 106 and 10-3.
C. 103 and 10-3.
D. 109 and 10-6.
من جدول 1-3
5. Which of these quantities represents the largest mass?
A. 2.0 x 102 mg
B. 0.0010 kg
C. 1.0 x 105 xg
D. 2.0 x 102 cg
6. How many cubic centimeters are there in exactly one cubic meter?
A. 1 x 10-6 cm3
B. 1 x 10-3 cm3
C. 1 x 10-2 cm3
D. 1 x 106 cm3
7. Ammonia boils at -33.4C. What temperature is this in F?
A. -60.1 F
B. -92.1 F
C. -28.1 F
D. +13.5F
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