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3 years ago

When one form of energy is transformed into another no energy is destroyed in the process?

Chemistry

1 answer:

katrin2010 [14]3 years ago

8 0

Yes that is true, when energy is transformed energy is not destroyed.

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What is the relative molecular mass (mr) of ammonia, formula NH3?

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Answer:

APROXIMENTLY 17

Explanation:

lol i remebered from science class

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3 years ago

What Is Precision? The Degree Of Accuracy In A Measurement

Artemon [7]

Answer:

Precision refers to how close two or more measurements are to each other, regardless whether those measurements are accurate or not.

Accuracy refers to how closely the measured value of a quantity corresponds to its “true” value.

Explanation:

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3 years ago

Which arrow represents the change of state described

Mama L [17]

Answer:N

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3 years ago

at atmoshperic pressure, a balloon contains 2.00L of nitrogen of gas. How would the volume change if the Kelvin temperature were

Nataly [62]

<u>Answer:</u> The percent change in volume will be 25 %

<u>Explanation:</u>

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:

$V_1=2L\\T_1=T_1\\V_2=?\\T_2=75\% \text{ of }T_1=0.75\times T_1$

Putting values in above equation, we get:

$\frac{2L}{T_1}=\frac{V_2}{0.75\times T_1}\\\\V_2=\frac{2\times 0.75\times T_1}{T_1}=1.5L$

Percent change of volume = $\frac{\text{Change in volume}}{\text{Initial volume}}\times 100$

Percent change of volume = $\frac{(2-1.5)}{2}\times 100=25\%$

Hence, the percent change in volume will be 25 %

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3 years ago

1. Gases are made up of molecules which are relatively far apart.

bulgar [2K]

The answer is A) 1...

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