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Nutka1998 [239]
3 years ago
6

A _____ fireplace continues to radiate heat even after the fire is extinguished.

Chemistry
2 answers:
umka2103 [35]3 years ago
8 0
A Masonry fireplace continues to radiate heat even after the fir is extinguished.
andrey2020 [161]3 years ago
4 0

Answer:

The correct answer is Masonry.

Explanation:

Chimneys are built with masonry, materials such as bricks, cement blocks, natural stone or a combination of these.

The materials keep the smoke and hot gases rotating inside the chimney for longer, causing the material to absorb more heat. This means that after the fire is extinguished, the materials will continue to radiate heat to the environment.

Have a nice day!

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In an investigation with density, Marcia’s teacher measures the mass and volume of 10 different samples of a substance. The samp
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Answer:

Mass  

Step-by-step explanation:

Usually, you plot the independent variable along the horizontal (x) axis and the dependent variable along the vertical (y) axis.

Marcia's teacher plotted the mass of the sample along the x-axis and volume along the y-axis.

The mass is the independent variable, because that is <em>what the teacher varied</em>.

The volume is the <em>dependent variable</em>, because it <em>depends</em> on the mass.

Sample number is <em>wrong</em>, because it is not a variable.

Substance is <em>wrong</em>, because all samples consist of the same substance.

Density is <em>wrong</em>, because it is constant. It is the slope of the graph.

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A liquid has an empirical formula CCl2, and a boiling point of 1 21 oC. When vapourised, the gaseous compound has a density of 4
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Based on the data given, the molar mass of the gas is 165.5 g/mol while the molecular weight of the gas is 165.5 amu

<h3>How can molar mass of a gas be obtained from density, temperature and pressure?</h3>

The molar mass of a gas can be obtained from density, temperature and pressure using the formula below:

  • molar mass = density × molar gas constant × temperature/pressure

Molar gas constant, R = R = 0.082 L.atm/mol/K.

Temperature = 150 °C = 423 K

Pressure = 785 torr = 1.033 atm

density = 4.93 g/L

molar mass of gas = 4.93 × 0.082 × 423/1.033

molar mass of gas = 165.5 g/mol

Then, molecular weight of the gas = 165.5 amu

Therefore, the molar mass of the gas is 165.5 g/mol while the molecular weight of the gas is 165.5 amu

Learn more about molar mass of a gas at: brainly.com/question/26215522

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