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schepotkina [342]
3 years ago
15

(3.5x10^5)x(4x10^-3)=exponent form

Chemistry
1 answer:
alexira [117]3 years ago
6 0

Answer:

1.4 x 10³

Explanation:

Given:

(3.5 x 10⁵)x(4 x 10⁻³)

Find:

Exponent form

Computation:

⇒ (3.5 x 10⁵)x(4 x 10⁻³)

⇒ 3.5 x 4 x 10²

⇒ 14 x 10²

1.4 x 10³

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LUCKY_DIMON [66]

Answer:

B

Explanation:

Since ice is less dense than water, it floats. This forms an ice cover sheet in cold regions such as in the poles. This insulates the water beneath from excessive heat loss hence preventing it from turning into ice too, This protects the marine life beneath. Also, water does not gain heat or loss it rapidly (due to its high heat capacity) hence offering a more or stable temperature range for marine life.

6 0
3 years ago
Why is DNA used to show common ancestry ?
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3 years ago
How to balance chemical equations
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To balance a chemical equation, you want the same amount of elements to equal the same on both sides.

Step1. Write equation out
[CH4 + Cl2 ---> CCl4 + HCl] 
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The Carbon element is balanced, but Hydrogen isn't.
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[CH4 + Cl2 ------> CCl4 + 4HCL]
C:1; H:4; Cl:2      C:1; H:4; CL:8 ///// Carbon and hydrogen are balanced, but now Chlorine is not. Now we balance that element by addind a coefficiant behind CL2////

[CH4 + 4Cl2 -----> CCl4 + 4HCl]
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8 0
3 years ago
A chemical process used to produce ethanol as a fuel additive was expected to produce 5,000 kilograms of ethanol based on the am
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Answer:

C)95.2

Explanation:

Given parameters:

Expected yield  = 5000kg

Experimental  yield  = 4760kg

Unknown:

Percentage yield  = ?

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7 0
3 years ago
How many moles are needed to make 2.5 L of a 3.8 M solution?
erik [133]

Answer:

9.5

Explanation:

that the answer I hope am correct

4 0
3 years ago
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