CHEM 103 MODULE 1 REAL EXAM QUESTIONS WITH 100% RATED CORRECT ANSWERS 2025 LATEST UPDATED GRADED A+

CHEM 103 MODULE 1 REAL EXAM QUESTIONS WITH 100% RATED

CORRECT ANSWERS 2025 LATEST UPDATED GRADED A+

Three types of information that measurements provide: - (Correct Answer)1. size or magnitude
of the measurement (a number)

2. A standard of comparison for the measurement (a unit)

3. An indication of the uncertainty of the measurement



What the international scientific community has agreed to use to allow for easier communication
of scientific data regardless of language barriers or differences in national standards - (Correct
Answer)International system of units or SI units (updated version of the metric system)



Seven fundamental properties/base units of the SI System - (Correct Answer)1. length

2. mass 心的坚强决定了我们的命运。当

3. time 我们面对挫折时，是一颗不屈的

4. temperature 心让我们勇敢前行

5. electric current
6. amount of substance

7. luminous intensity



Property measured: length

provide name of unit and symbol - (Correct Answer)meter (m)



property measured: mass
provide name of unit and symbol - (Correct Answer)kilogram (kg)



property measured: time

provide name of unit and symbol - (Correct Answer)second (s)

, property measured: temperature

provide name of unit and symbol - (Correct Answer)kelvin (K)


property measured: electric current

provide name of unit and symbol - (Correct Answer)ampere (A)



property measured: amount of substance

provide name of unit and symbol - (Correct Answer)mole (mol)



property measured: luminous intensity

provide name of unit and symbol - (Correct Answer)candela (cd)
心的坚强决定了我们的命运。当

我们面对挫折时，是一颗不屈的
femto (f) - (Correct Answer)10^-15 (0.000000000000001)
心让我们勇敢前行

pico (p) - (Correct Answer)10^-12 (0.000000000001)



nano (n) - (Correct Answer)10^-9 (0.000000001)


micro (µ) - (Correct Answer)10^-6 (0.000001)



milli (m) - (Correct Answer)10^-3 (0.001)



centi (c) - (Correct Answer)10^-2 (0.01)



deci (d) - (Correct Answer)10^-1 (0.1)