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Stolb23 [73]
3 years ago
14

12 Significant Figures in Addition and

Chemistry
1 answer:
Pavlova-9 [17]3 years ago
8 0

Answer: 85.6

Explanation:

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27. Sample of neon gas has a pressure of 4.1 atm and argon gas with a pressure of 3.2 atm are added to a
MrRa [10]

Answer:

Option C. 13.5 atm

Explanation:

From the question given above, the following data were obtained:

Pressure of Neon (Pₙₑ) = 4.1 atm

Pressure of Argon (Pₐᵣ) = 3.2 atm

Pressure of nitrogen (Pₙ₂) = 6.2 atm

Total pressure (Pₜ) =?

The total pressure in the container can be obtained by adding the pressure of the individual gases. This is illustrated below:

Pₜ = Pₙₑ + Pₐᵣ + Pₙ₂

Pₜ = 4.1 + 3.2 + 6.2

Pₜ = 13.5 atm

Therefore, the total pressure in the container is 13.5 atm

8 0
3 years ago
1.)What is a mineral?
vesna_86 [32]

Answer:

i also had this question.

Explanation:

3 0
4 years ago
What is not true about radiation? it travels out in all directions from its source. it is one of three methods of heat transfer.
Alika [10]
The answer is the last one (it needs a medium through which to travel) it is not true about radiation. A radiation is the emission of energy in the form of waves or particles through space or through a material medium. This includes; electromagnetic radiation, such as a radio wave, microwaves, visible light, x rays, and gamma radiation. 
6 0
4 years ago
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A gas has a volume of 560 mL at a temperature of –55°C. What volume will the gas occupy at
kap26 [50]

Answer: 778 ml

Explanation:

To calculate the final temperature of the system, we use the equation given by Charles' Law. This law states that volume of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

\frac{V_1}{T_1}=\frac{V_2}{T_2}

where,

V_1\text{ and }T_1 are the initial volume and temperature of the gas.

V_2\text{ and }T_2 are the final volume and temperature of the gas.

We are given:

V_1=560ml\\T_1=-55^oC=(273-55)K=218K\\V_2=?\\T_2=30.0^oC=(273+30.0)K=303K

Putting values in above equation, we get:

\frac{560ml}{218K}=\frac{V_2}{303K}\\\\V_2=778ml

Thus volume the gas occupy at 30.0°C is 778 ml

7 0
3 years ago
What are the physical properties of the cookie/cracker? List 3 or more.
Ostrovityanka [42]

Answer

cookie

shape:circle

texture: bumpy rough on side

color:brown

size: bigger than a quarter

Explanation:

I cant see it so just describe the color shape size texture

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3 years ago
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