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Fudgin [204]
4 years ago
14

What is the difference between a measured value and an accepted value? How are these values used to determine the precision of y

our answer?
Chemistry
1 answer:
Pavlova-9 [17]4 years ago
7 0
For the answer to the question above, the answer is simple and obvious. Measured value is simply  the value that is measured. 
<span>While, theoretical value is the value from theory or calculations. 

I hope my answers helped you. Have a nice day!</span>
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If the density of a metal bar is 3.47 g/mL and volume is 30 mL, calculate the mass of the metal bar in grams (g). Show the steps
Hitman42 [59]

Answer:

m=104.1g

Explanation:

Hello,

In this case, considering that the density is considered as the quotient of the mass and volume:

\rho =\frac{m}{V}

We can easily compute the mass by solving for it as follows:

m=V*\rho =30 mL*3.47g/mL\\\\m=104.1g

Best regards.

7 0
3 years ago
Please can someone help me??!
svp [43]

I believe the correct order of words should be:

Counterclockwise

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I am not sure on faces, but I don't see any other words from the bank that would fit that description. Hope these are correct and hope I helped!

4 0
3 years ago
An element's atomic number is 7. How many protons would an atom of this element have?
rusak2 [61]

well the atomic number is 7 the number of protons is also equal to 7 .

hope this helps


8 0
3 years ago
Read 2 more answers
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Kay [80]

Electromagnetic wave travels faster through air than metal.

Option A

<u>Explanation:</u>

There are different kinds of wave energy. The most significant are electromagnetic and mechanical waves. The mechanical waves propagate through the medium by transfer of energy by vibrating of particles in medium.

So, the more number of particles present in the medium, the more fast the mechanical wave can propagate. So the mechanical waves travel faster in metals consisting of more number of free charge carriers. But electromagnetic waves does not need any of the medium to propagate. So it can travel faster in air than in metals.

7 0
4 years ago
Why was the concern over global cooling replaced with a concern over global warming
wlad13 [49]

Global cooling was a hypothesis of the looming cooling of the Earth's surface and atmosphere that would take place over a period of substantial glaciation.  

It emerged as a result of a drop of temperature during the period of 1940s and 1970s. After this it was realized that it is not a big threat as global warming.  

On the other hand, Global warming is the rise in overall temperature of the atmosphere which is caused by greenhouse effect that is as a result of rise in the levels of greenhouse gas emissions such as CFCs and carbon dioxide.  

Global warming is a present threat in the society world over with the rise in temperatures and climatic changes taking place, this is the reason why global warming replaced global cooling.  


6 0
3 years ago
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