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rodikova [14]
4 years ago
10

Anyone know this plz help

Chemistry
1 answer:
dangina [55]4 years ago
8 0
2. False
3.True
4. False
5 True
6. True
7. True
8. False (i think)
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The volume of a sample of hydrogen gas was decreased from 14.65 L to 7.94 L at constant temperature. If the final pressure exert
adoni [48]

Answer:

The pressure the hydrogen gas exerted before its volume was decreased is 2.7207 atm.

Explanation:

Using Boyle's law

{P_1}\times {V_1}={P_2}\times {V_2}

Given ,  

V₁ = 14.65 L

V₂ = 7.94 L

P₁ = ?

P₂ = 5.02 atm

Using above equation as:

{P_1}\times {V_1}={P_2}\times {V_2}

{P_1}\times {14.65}={5.02}\times {7.94}\ atm

{P_1}=\frac {{5.02}\times {7.94}}{14.65}\ atm

{P_1}=2.7207\ atm

<u>The pressure the hydrogen gas exerted before its volume was decreased is 2.7207 atm.</u>

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The fire burns the trees(Biosphere) which leaves the ash which becomes part of the soil (Lithosphere) where new growth(Biosphere) can happen.
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Marble is made from limestone under the influence of heat and pressure. The chemical formula for limestone or marble
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what is the gas that is produced.

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4 0
2 years ago
Indicate whether the pair of structures shown represent stereoisomers, constitutional isomers, different conformations of the sa
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The structures shown are examples of Constitutional Isomer.

In Chemistry, an isomer refers to a molecule that is similar to another but has differences. These differences can be:

  • A difference in the constitution: The molecules have the same formula but the connectivities between elements or arrangement is different.
  • Arrangement in space: The molecules have the same formula and connectivity, but they look different to do an arrangement in space of a position.

The molecules shown have the same formula because the elements in each pair are the same. However, the way these elements are connected is slightly different because the Br and the CH3 are connected to different carbons.

Based on this, the difference is the connectivity or constitution, and therefore these are constitutional isomers.

Learn more in: brainly.com/question/17125223

4 0
3 years ago
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