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steposvetlana [31]
3 years ago
8

Need these solved ASAP please​

Chemistry
1 answer:
satela [25.4K]3 years ago
5 0

Explanation: SHHHSHHH

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Who conducted experiments to determine the quantity of charge
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J. J. Thomson is the corect awncer

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3 years ago
A container of gas has a volume of 3.5 L and a pressure of 0.8 atm. Assuming the temperature remains constant, what volume of ga
vovikov84 [41]
<h3>Answer:</h3>

5.6 L

<h3>Explanation:</h3>

We are given;

  • Initial volume, V1 = 3.5 L
  • Initial pressure, P1 = 0.8 atm
  • Final pressure, P2 = 0.5 atm

We are required to calculate the final volume;

  • According to Boyle's law, the volume of a fixed mass of a gas and the pressure are inversely proportional at a constant temperature.
  • That is; P α 1/V
  • Mathematically, P=k/V
  • At two different pressure and volume;

           P1V1 = P2V2

In this case;

Rearranging the formula;

V2 = P1V1 ÷ P2

     = (0.8 atm × 3.5 L) ÷ 0.5 atm

    = 5.6 L

Therefore, the resulting volume is 5.6 L

7 0
3 years ago
What is the mass of the ethanol that exactly fills a 200.0 mL container? The density of ethanol is 0.8 g/mL. please help
Naddik [55]
160.0g

Mass =volume x density = 200.0 mL x 0.8 g/mL= 160.0 g
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Round the answer for the following question to the correct number of significant figures: 38,736 km ÷ 4784 km
uysha [10]

Answer:

Explanation:

38736 ÷ 4784 = 8.097

Sig Figs

4

8.097

Decimals

3

8.097

Scientific Notation

8.097 × 10^0

E-Notation

8.097e+0

Words

eight point zero nine seven

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Based off of the simulation pulley gizmo; how many people did it take to lift the armchair with a fixed pulley? (Look at Activit
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Answer:

IN WHICH GRADE YOU ARE????

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