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2 years ago

8

PLSS HELP! The gas carbon dioxide is a pure substance. Which of the following is true about carbon dioxide? (4 points)

1 answer:

Nadusha1986 [10]2 years ago

5 0

Answer:

The answer is option A..

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Is this true or false

snow_lady [41]

I’m pretty sure it’s true!

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3 years ago

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What is potential energy

PolarNik [594]

Answer:

the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.

Explanation:

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2 years ago

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Antoine Lavoisier is known for which of the following? (Select all that apply)

BlackZzzverrR [31]

Answer:

Both c and e would be correct

Explanation:

Lavoisier studied the conversation of mass and discovered oxygen

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3 years ago

Which describes a chemical property of silicon?(1) Silicon has a blue-gray color

ladessa [460]

The answer is <span>(4) Silicon reacts with fluorine. The other three are just physical properties and are intensive (properties do not change, such as melting point, freezing point, color, etc.)
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3 years ago

A volume of 5.0 L of air at 20°C is expelled from a container where it is instantly warmed to 50°C. Calculate the new volume tha

zhannawk [14.2K]

Answer: The new volume that the air occupies at this temperature is 5.5 L

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:

$V_1=5.0L\\T_1=20^oC=(20+273)K=293K\\V_2=?\\T_2=50^0C=(50+273)K=323K$

Putting values in above equation, we get:

$\frac{5.0}{293}=\frac{V_2}{323}\\\\V_2=5.5L$

Thus the new volume that the air occupies at this temperature is 5.5 L

3 0

3 years ago