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lys-0071 [83]
4 years ago
12

Which statement accurately describes liquids?

Chemistry
1 answer:
Zielflug [23.3K]4 years ago
3 0
C. they expand to fill all the space
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Alice has friends coming over for lunch. She has decided to fix grilled cheese sandwiches for them. Each sandwich consists of on
Alex73 [517]

Answer:

2 slices of bread + 1 slice of cheese → 1 grilled cheese sandwich

Explanation:

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7 0
4 years ago
If there is 25.0 L of gas at a temperature of 350C what is the temperature if the volume increases to 75.0L?
Zielflug [23.3K]

Answer:

The new temperature is 1596 C.

Explanation:

Charles's Law indicates that for a given sum of gas at constant pressure, as the temperature increases, the volume of the gas increases, and as the temperature decreases, the volume of the gas decreases.

Statistically, Charles's law is a law that says that when the amount of gas and pressure are kept constant, the ratio that exists between the volume and the temperature will always have the same value:

\frac{V}{T}=k

Being an initial state 1 and a final state 2, it is fulfilled:

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

In this case:

  • V1= 25 L
  • T1= 350 C= 623 K (being 0 C= 273 K)
  • V2= 75 L
  • T2= ?

Replacing:

\frac{25 L}{623 K} =\frac{75 L}{T2}

Solving:

T2*\frac{25 L}{623 K} =75 L

T2=75 L*\frac{623 K}{25 L}

T2= 1869 K= 1596 C

<u><em>The new temperature is 1596 C.</em></u>

4 0
3 years ago
Hello. I have a new science test and I’m checking my answers. I would like some help.
Burka [1]

Answer:

1. D. Boat B will cause a change in the position and speed of boat A.

2. B. A collision

3. D.

4. Most likely C

Explanation:

8 0
3 years ago
Which of the following terms best describes the nucleus of a radioactive element?
Jet001 [13]
Which of the following terms best describes the nucleus of a radioactive element? 
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6 0
4 years ago
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How many protons, electrons, and neutrons does the following isotope contain? 79Br+
stellarik [79]

The number of protons = atomic number in Periodic table, so 35

The number of neutrons = mass number - number of protons = 79-35=44

The number of electrons = atomic number - 1 = 35-1 =34

6 0
3 years ago
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