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Tanya [424]
3 years ago
7

Help I need this bad

Chemistry
2 answers:
erma4kov [3.2K]3 years ago
7 0
Take a picture on brainly app and u can find it
marissa [1.9K]3 years ago
5 0

Answer:

21.

Explanation:

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A balloon with a pressure of 2.2 atm and a volume of 2.5 L is released in the mountains of Colorado. As the balloon ascends, the
CaHeK987 [17]

Answer:

1.38 atm

Explanation:

Using Boyle's law which states that the volume of a given mass of gas is inversely proportional to the pressure, provided temperature remains constant

P1V1= P2V2

P1 = 2.2 atm, V1 = 2.5L ,

P2 = ? , V2 = 4L

2.2 × 2.5  = P2 × 4

Divide both sides by 4

P2 = 5.5 ÷ 4

P2 = 1.38 atm

I hope this was helpful, please mark as brainliest

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4 years ago
07-PS1-6 In a laboratory experiment that measures heat energy changes in 1 point
scoray [572]
Thermometer
Probably a digital thermocouple with high resolution
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3 years ago
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Zolol [24]

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3 years ago
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Keith_Richards [23]

Answer:

4 because CoCO2 is in a degree And it’s all four different elements

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3 years ago
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How many grams are in 9.05 x 1023 atoms of silicon?
Sergeu [11.5K]

Explanation:

Number of moles(n)=Number of atoms(N)/Avogadro's constant.

Avogadro's constant=6.02×10²³

so we have

n=9.05×10²³/6.02×10²³

n=1.0503moles.

n=mass/molar mass

1.0503=mass/28

mass=1.0503×28

mass=29.4084g

6 0
3 years ago
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