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lutik1710 [3]
2 years ago
12

What happened to the sound as vibration of an object increase in strength​

Chemistry
1 answer:
svlad2 [7]2 years ago
5 0

Answer:

A.The sound becomes louder.

And

C.The sound waves get further.

Explanation:

Louder the sound it will travel long.

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Using the graph below please draw a reaction potential energy diagram for a reaction with the
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Answer:

12

Explanation:

because it is the sam

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3. Which of the following are isometries (rigid motions)? (Choose all that apply) (2 points)
vichka [17]

Answer:

The answer is D.

Explanation:

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A gas sample is collected in a 0.279 L container at 22.7 °C and 0.764 atm. If the sample has a mass of 0.320 g, what is the iden
Sindrei [870]

Answer:

HCl

Explanation:

<em>Choices:</em>

<em>CO: 28.01g/mol</em>

<em>NO₂: 46g/mol</em>

<em>CH₄: 16.04g/mol</em>

<em>HCl: 36.4g/mol</em>

<em>CO₂: 44.01g/mol</em>

<em />

It is possible to identify a substance finding its molar mass (That is, the ratio between its mass in grams and its moles). It is possible to find the moles of the gas using general ideal gas law:

PV = nRT

<em>Where P is pressure of gas 0.764atm; V its volume, 0.279L; n moles; R gas constant: 0.082atmL/molK and T its absolute temperature, 295.85K (22.7°C + 273.15).</em>

Replacing:

PV = nRT

PV / RT = n

0.764atm*0.279L / 0.082atmL/molKₓ295.85K = n

<em>8.786x10⁻³ = moles of the gas</em>

<em />

As the mass of the gas is 0.320g; its molar mass is:

0.320g / 8.786x10⁻³moles = 36.4 g/mol

Based in the group of answer choices, the identity of the gas is:

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3 years ago
HOW MANY M ARE IN 3.0X105 MM?
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Steel is formed when a little bit of carbon is added to this element (the carbon gives the strenghth and hardness to the steel
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