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Sedaia [141]
3 years ago
12

What is the result of multiplying (2.5 × 1010) × (2.0 × 10-7)?

Chemistry
2 answers:
Travka [436]3 years ago
7 0
That would be A.

2.5*2*10^(10-7)=5*10^3
Brut [27]3 years ago
4 0

Answer: The correct option is,

A. 5.0\times 10^3

Explanation:

Given expression,

(2.5\times 10^{10})\times (2.0\times 10^{-7})

=2.5\times 2.0\times 10^{10-7}

( By using product property of exponent i.e. a^m\times a^n = a^{m+n} )

=5.0\times 10^3

Therefore,

OPTION A is correct.

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Citrus2011 [14]
<h3>Answer:</h3>

4.3 miles

<h3>Explanation:</h3>

We are given;

Distance of 22,704 feet

We are required to determine the number of miles in 22,704 feet

  • To convert one unit to another we use conversion factors
  • Therefore, we need to know the suitable conversion factor.
  • That is, 1 mile/5,280 feet
  • Thus, to determine the number of miles we multiply the number of feet with the conversion factor.

That is;

= 22,704 feet × 1 mile/5,280 feet

= 4.3 miles

Therefore, there are 4.3 miles in 22,704 feet

5 0
3 years ago
What are all the ways that you think knowing about the flow of energy might be useful in
Kaylis [27]

Yes the main benifit can be recyclation of energy

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4 0
2 years ago
PLEASE ASNWR ASAP
Vikki [24]
34.95 atm

lol i hope i’m not too late



4 0
3 years ago
Nickel is extracted from nickel oxide by reduction with carbon.
meriva

Answer:

Nickel is extracted from nickel oxide by reduction with carbon. Nickel is a metal which react with atmospheric oxygen which is very reactive in order to protect the inner surface of metal. Carbon extract oxygen which is attached to the nickel in the form of nickel oxide because carbon is more reactive so it made a chemical bonds with oxygen and nickel oxide is converted into a pure nickel.

3 0
3 years ago
What are the correct steps for evolution by natural selection?​
katrin [286]

(っ^-^ )っHey There!

Answer → The five steps of the process of natural selection are variation, inheritance, selection, time and adaptation

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