Scientific Notation, Unit Conversion, and Significant Figures in Chemistry Quiz

Test your knowledge on scientific notation, unit conversion, and significant figures with this chemistry quiz. Explore questions on conversions, significant figures, and arithmetic operations.

#1

Which of the following numbers is written in scientific notation?

0.0025
2500
25,000
2.5 x 10^3
#2

What is the result of converting 3.4 kilometers to meters?

0.34 m
34 m
3400 m
340 m
#3

Which of the following is an example of a number with three significant figures?

0.020
1200
0.00205
0.2000
#4

How many milliliters are in 0.5 liters?

50 mL
500 mL
5 mL
0.05 mL
#5

What is the result of (2.3 x 10^4) / (1.2 x 10^2)?

19.16 x 10^2
19.16 x 10^6
1.91 x 10^2
1.91 x 10^6
#6

How many centimeters are in 1.5 meters?

150 cm
15 cm
1.5 cm
0.15 cm
#7

When performing calculations involving addition or subtraction with numbers in scientific notation, what must be done first?

Multiply the numbers
Divide the numbers
Convert them to the same exponent
Convert them to decimal notation
#8

In a calculation involving multiplication or division, how do you determine the number of significant figures in the result?

The result has the same number of significant figures as the number with the fewest significant figures in the calculation
The result has the same number of significant figures as the number with the most significant figures in the calculation
The result always has one significant figure
The result has one more significant figure than the number with the most significant figures in the calculation
#9

When performing calculations involving addition or subtraction with numbers in scientific notation, what should you ensure about the exponents?

They should be the same
They should be different
They should be multiplied
They should be divided

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