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Ede4ka [16]
3 years ago
6

A reaction where one element takes the place of another element in a compound is an example of which type of reaction?

Physics
1 answer:
yKpoI14uk [10]3 years ago
4 0

Answer:

single-replacement

A single-replacement reaction is a chemical reaction in which one element replaces another in a compound.

Explanation:

plz mark me brainleast

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Viefleur [7K]

Your answers are correct. You have to read the plaques in the virtual lab to find the answers. So it shows you read them.

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3 years ago
Identify the energy transformation is image below
-BARSIC- [3]

Answer:

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3 years ago
An isloated point charge produce an electric field with magnitude E at a point 2 m away. At a point 1 m from the charge magnitud
Nina [5.8K]

Answer:

the correct answer is C,      E’= 4E

Explanation:

In this exercise you are asked to calculate the electric field at a given point

         E = k \frac{q}{r^2}

indicates that the field is E for r = 2m

         E = \frac{ k q}{4}                  (1)

the field is requested for a distance r = 1 m

         E ’= k \frac{q}{r'^2}

         E ’= k q / 1

 

from equation 1

         4E = k q

       

we substitute

        E’= 4E

so the correct answer is C

8 0
3 years ago
Read through the scenarios below and calculate the predicted change in kinetic energy of the object compared to a 100 kg ball tr
sashaice [31]

Okay, first off, the formula for Kinetic Energy is:

<em>KE = 1/2(m)(v)^2</em>

<em>m = mass</em>

<em>v = velcoity (m/s)</em>


Using this formula, we can then calculate the kinetic energy in each scenario:

1) KE = 1/2(100)(5)^2 = 1,250 J

2) KE = 1/2(1000)(5)^2 = 12,500 J

3) KE = 1/2(10)(5)^2 = 125 J

4) KE = 1/2(100)(5)^2 = 1,250 J

4 0
3 years ago
Read 2 more answers
10 poin<br> What is the momentum of a 25kg cart traveling left with a velocity of 10<br> m/s?
Mashutka [201]
250 kg*m/s
Momentum is found by multiplying mass by velocity
25*10=250
7 0
3 years ago
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