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MArishka [77]
3 years ago
12

PLEASE ILL GIVE YOU BRAINLIEST PLEASE!!!!!!! :<

Chemistry
1 answer:
Sveta_85 [38]3 years ago
6 0

Answer:

it is called land of extreme

Explanation:

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9

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a significant number is a non zero number or exponent or a zero between numbers

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Molecular compounds result from covalent bonding which are called _____
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Light energy is a form of A. neither potential nor kinetic energy. B. kinetic energy only. C. both potential and kinetic energy.
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A gas that has a volume of 28 liters, a temperature of 42°C, and an unknown pressure has its volume increased to 49 liters and i
kicyunya [14]

Answer:

7.35 atm

Explanation:

From the question we are given;

  • Initial volume, V1 as 28 L
  • Initial temperature, T1 as 42°C or 315 K
  • New volume. V2 as 49 L
  • New temperature, T2 as 27°C  or 300 K
  • New Pressure, P2 as 4.0 atm

We are required to determine the initial pressure, P1

We are going to use the combined gas law...

According to the combined gas law,

\frac{P_{1} V_{1} }{T_1} =\frac{P_2V_2}{T_2}

Therefore, to get P1

P_1=\frac{P_2V_2T_1}{V_1T_2}

We get;

P_1=\frac{(4.0)((49)(315)}{(300)(28)}

P_1=7.35

Therefore, the initial pressure of the gas is 7.35 atm

4 0
3 years ago
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