2 years ago

Is heat of fusion an extensive or intensive property? Why?

1 answer:

5 0

Answer:

Temperature is an intensive property, while heat is an extensive property. An intensive property means that the amount of substance present will not change the specific trait. Calorimetry, heat of fusion and heat of vaporization calculations.

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What is the mass of 1 mole of MgSO4?

White raven [17]

Answer:

120.37 g

Explanation:

Mg = 24.31 g

S = 32.06 g

4 O = 16 X 4 = 64 g

Therefore, MgSO4 is (24.31 + 32.06 + 64) g = 120.37 g

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3 years ago

What is an environmental hazard created by humans?

Yuliya22 [10]

Environmental Hazards are usually any chemicals that donot naturally occur to exist anywhere and are usually made in the fields of industry or experimental sciences
So if you happen for example to throw a bit of mercury in some river while being in a school trip then this is an environmental hazard created by humans

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3 years ago

If I DECREASE the mass and INCREASE the distance, what happens to the force of gravity?

Lapatulllka [165]

Answer:

Decreases

Explanation:

F = GM1M2/R²

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3 years ago

Karolina [17]

I believe it is b electric energy etc...

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3 years ago

A PNP transistor is connected in a circuit so that the collector-base junction remains reverse biased and the emitter-base junct

maw [93]

Here are the choices:

A. the output current will be much smaller than the input current.
B. the output voltage will be much larger than the input voltage. 
C. the output voltage will be much smaller than the input voltage. 
D. the output current will be much larger than the input current

The correct answer is letter B. the output voltage will be much larger than the input voltage.

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3 years ago