1. Express the number = -890,000 in scientific notation; 2. Express the number = 4.239 x 10² in standard notation; a) -4230 b) 4.239 c) -42.39 3. Scientific notation is an expression of a number using powers of a) 20 b) 30 c) 10
1. Express the number = -890,000 in scientific notation; 2. Express the number = 4.239 x 10² in standard notation; a) -4230 b) 4.239 c) -42.39 3. Scientific notation is an expression of a number using powers of a) 20 b) 30 c) 10
Chemistry: Principles and Reactions
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Chapter1: Matter And Measurements
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Transcribed Image Text:1. Express the number = -890,000 in scientific notation;
2. Express the number =-4.239 x 10² in standard notation;
a) -4230 b) 4.239 c) -42.39
3. Scientific notation is an expression of a number using powers of
a) 20 b) 30 c) 10
4. A number is expressed in scientific notation by writing the first_
a) nonzero digit b) decimal point c) regular digits
5. Express the number in standard notation: 7.11 x 10²
6. This number is not written in proper scientific notation. Rewrite them so that they are in
proper scientific notation.
9,943 x 10$
7. Write these numbers in scientific notation by counting the number of places the decimal
point is moved.
123,456.78
8. There are
fundamehtal units for various quantities;
a) Three b) Five c) Seven
Transcribed Image Text:9. The Sl standard unit of length is the.
a) meter b) yard c) kilometer
10. Volume is the Derived Sl units;
a) True b) False
11. A common garden snail moves about 6.1 m in 30 min. What is its velocity in meters per
minute (m/min)?
12. Give the number of significant figures in this measurement;
0.006606 s
13. How many cubic centimeters are in 0.883 m³?
14. How many milliliters are in 607.8 kL?
15.A food label states that one serving has 38 Cal. How many joules is this? (1 cal=4.184 J)
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Since you have posted a question with multiple sub-parts, we will solve the first three subparts for you. To get the remaining sub-part solved please repost the complete question and mention the sub-parts to be solved.
Scientific notation for a given can be written as
x x 10y
Here x is a number or decimal number such that
1 ≤ |x| < 10.
y is the power of 10 essential to make the scientific notation mathematically equal to the original number.
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