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Cerrena [4.2K]
4 years ago
11

What is the correct way to write 0.0000250 m in scientific notation?

Chemistry
2 answers:
cestrela7 [59]4 years ago
8 0
Your answer to this is 

2.5×10−5


Move the decimal so there is one non-zero digit to the left of the decimal point.
 
The number of decimal places you move will be the exponent on the <span>1010</span>.
 
If the decimal is being moved to the right, the exponent will be negative.
 
If the decimal is being moved to the left, the exponent will be positive.
Arturiano [62]4 years ago
8 0
2.5^-0.4 would be correct
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Answer:

Explanation:

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Alarm clock runs due to the electrical energy. Due to the electric current, the electric motor rotates the blade. It means that the electrical energy is converted into mechanical energy.

The mechanical energy finally generates vibrations which cause sound.    

Thus, energy transformation which takes place in alarm clock will follow the order-

Electrical to mechanical to sound.

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How does the understanding of the structure of the atom help you see both unity and diversity in forms of matter?
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<span>How does understanding the structure of the atom help you see both unity and diversity in forms of matter?</span><span>


Understanding the structure of the atom helps to understand unity in matter because all matter is made up of those very similar atoms. Understanding the structure of the atom helps to understand diversity in matter because matter can be different (solid, liquid, gas, hard, soft, etc) and knowing the structure of the atom can explain these differences.

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4 years ago
Read 2 more answers
A gas with a volume of 8 L at a temperature of 473K is switched to a new container with a temperature of 350K. If the pressure r
Digiron [165]

Answer:

The new  volume is 5.92 L,  which is approximately 6 L

Explanation:

As the gas temperature increases, the molecules move faster and take less time to reach the walls of the container. This means that the number of crashes per unit of time will be greater. That is, there will be an increase (for an instant) in the pressure inside the container and the volume will increase.

So Charles's Law is one of the gas laws that relates the volume and temperature of a certain amount of gas at constant pressure and says that:

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Mathematically this is expressed by:

\frac{V}{T}=k

When you want to study two different states, an initial and a final one of a gas, this law is expressed by:

\frac{V1}{T1} =\frac{V2}{T2}

In this case:

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  • T1: 473 K
  • V2: ?
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Replacing:

\frac{8 L}{473K} =\frac{V2}{350K}

Solving:

V2=350K*\frac{8L}{473K}

V2=5.92 L

<u><em>The new  volume is 5.92 L,  which is approximately 6 L</em></u>

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In a comparison of metals to nonmetals,metals tend to have
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