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(7.2x10^-6)+(5.44x10^-6)

(7.2x10^-6)+(5.44x10^-6)
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2. asked by Anonymous
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A solution of aniline(C6H5NH2, Kb=4.2x10^-10) has a pH of 8.69 at 25 Celsius. What was the initial concentration of aniline?I
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2. asked by V
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Juan is taking a road trip to Pennsylvania. the distance he plans to travel can be written as 2x10^3 kilometers, 2x10^5 meters,
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which expression is equivalent to (4x10^4)/(6x10^6)x(3x10^-2)2x10^4 2x10^6 2x10^5 2x10^-4
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2. 70 views
Which expression represents the quotient below? 4.6x10^5 / 2.3x10^6A. 2x10^0 B. 2x10^-1 C. 2x10^1 D. 2x10^-30
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2. asked by hi :)
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The Andromeda Galaxy is the closest to the Earth’s Milky Way Galaxy. It contains at least 200,000,000,000 stars. Write
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2. 84 views
Which expression represents the quotient below?4.6x10^5/2,300,000 A. 2x10^0 B. 2x10^-1 C. 2x10^1 D. 2x10^-30
1. 1 answer
2. 105 views
Which expression represents the quotient below?4.6x10^5/2,300,000 A. 2x10^0 B. 2x10^-1 C. 2x10^1 D. 2x10^-30
1. 1 answer
2. 88 views
What is the value of the expression simplified in standard Notation: (3.2x10^-2) (4.2x10^6) / (5.2x10^5) <-(Fraction)A. 0.0026
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2. 77 views
Perform the indicated operations and give the answer in scientific notation.4.2x10^-4x2.2x10^-3/2x10^2x3.3x10^-2
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2. 65 views