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vitfil [10]
3 years ago
13

What do scientists do? O A. They use their knowledge to make public policy O B. They make sure all facts fit scientific theories

. O C. They make ethical decisions for the government O D. They learn about the world through observation.
Chemistry
2 answers:
wolverine [178]3 years ago
7 0

I think the answer to this is D, I am sorry if I’m wrong

fomenos3 years ago
6 0

Considering there are different fields of science and many career involving the matter, I'd say that option D. They learn about the world through observation. makes the most sense in this scenario.

I hope this helps! :)

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What is the pressure of a sample of gas at a volume of .335 L if it occupies 1700 mL at
Alchen [17]

Answer:

4,313.43 mmHg is the pressure of a sample of gas at a volume of .335 L if it occupies 1700 mL at  850 mm Hg

Explanation:

Boyle's law says:

"The volume occupied by a given gas mass at constant temperature is inversely proportional to the pressure." This means that if the quantity of gas and the temperature remain constant, the product of the pressure for the volume always has the same value.

Boyle's law is expressed mathematically as:

Pressure * Volume = constant

o P * V = k

If you have a certain volume of gas V1 that is at a pressure P1 at the beginning of the experiment and you vary the volume of gas to a new value V2, then the pressure will change to P2, it will be true:

P1 * V1 = P2 * V2

In this case:

  • V1=0.335 L
  • P1= ?
  • V2= 1700 mL= 1.7 L (Being 1 L=1000 mL)
  • P2= 850 mmHg

Replacing:

P1*0.335 L=850 mmHg*1.7 L

Solving:

P1=\frac{850 mmHg*1.7 L}{0.335 L}

<u><em>P1=4,313.43 mmHg</em></u>

<u><em>4,313.43 mmHg is the pressure of a sample of gas at a volume of .335 L if it occupies 1700 mL at  850 mm Hg</em></u>

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From the periodic table, the number of valence electrons for most of the main group elements may be determined directly from the
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A recipe for spaghetti sauce requires 2.5 cups of tomato sauce. If only metric measures are available, how many milliliters of t
dsp73

Answer: 2.5 cups of tomato sauce is 625 milliliters of tomato sauce

Explanation:

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Which list of elements from Group 2 on the Periodic Table is arranged in order of increasing atomic radius?
IgorC [24]
The correct answer is option 1. Be, Mg, and Ca is the correct order arranged in increasing atomic radius. This is predicted based on the periodic table. The atomic sizes increases as one moves downwards in the periodic table.
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How much heat is required to raise the temperature of 50.0g of water 13°C<br>​
N76 [4]

Answer:one gram by 1oC

Explanation: you will need to know the value of water's specific heat

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4 years ago
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