2 years ago

Which object will have the greatest change in

1 answer:

4 0

(4) a metal sphere with a charge of 1.0 × 10^−9 C <span>moved through a potential difference of 4.0 V would undergo the greatest change in electrical energy from the list. </span>

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B) not work ,because the water would freeze

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2 years ago

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Hydrogen gas is generated when acids come into contact with certain metals. When excess hydrochloric acid reacts with 2.2 g of (

CaHeK987 [17]

To solve the problem it is necessary to apply the concepts related to Byle's Law and Avogadro's Law.

The ideal gas equation would help us find the final solution to the problem, defined by

$PV = nRT$

Where,

T= Temperature of the gas

R = Universal as constant

n = number of moles

V = Volume

P = Pressure

For our case we have that the mass of Zn is 2.2g in moles would be

$[tex]Zn = \frac{2.2}{65}$ [/tex]

$Zn = 0.0338$

We know that 1 mole of hydrogen gas is proceed by 1 mole of zinc and the result is $Zn^{2+}$ , then Hydrogen can produce the same quantity,

$H_2 = 0.0338$

Applying the previous equation we have that

$V= \frac{nRT}{P}$

$V = \frac{0.0338*0.08206*293.15}{0.98}$

$V = 0.829L$

Therefore the volume of hydrogen gas is collected is 0.829L

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2 years ago

T/F climate can change quickly

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Reese rides her bike 10 kilometers in 5 hours.Avery rides her bike 15 kilometers in 5 hours. Which girl rides her bike faster?

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The answer is Avery.

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2 years ago

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22.What factor determines in the direction of heat flow between objects?Select one:a. The difference in density of the objects.

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We will have that the factor that determines the direction of the heat flow between objects is the difference in temperature.

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