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DochEvi [55]
3 years ago
12

Which of the following is a solution? (2 points)

Chemistry
1 answer:
diamong [38]3 years ago
7 0
An alloy maybe could be used as a solid but i really don't think that would be it so i would sayether from an alloy or dirt
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When an object is lifted 10 feet off the ground, it gains a certain amount of potential energy. If the same object is lifted 30
Elden [556K]

Answer: 3 times as much the potential energy

Explanation:

Potential energy is the energy possessed by an object by virtue of its position.

P.E=m\times g\times h

m= mass of object

g = acceleration due to gravity

h = height of an object  

When same object with same is lifted from 10 feet to 30 feet. The height has increased 3 times , thus the potential energy will also get 3 times as much.

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2 years ago
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Anon25 [30]

Answer:

C. Mole

Explanation:

Chemical formula deals with mole number

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2 years ago
6.0 L of oxygen gas is at a temperature of 5K. If the temperature of the gas is lowered to 1K at constant pressure, what is the
DerKrebs [107]

Answer:

THE NEW VOLUME AT 1 K IS 1.2 L

Explanation:

Using Charles' law which states that the volume of a given gas is directly proportional to its temperature provided the pressure remains constant.

Mathematically written as;

V1/T1 = V2/T2   at constant pressure

V1 = Initial volume = 6L

T1 = initial temperature = 5K

T2 = Final temperature = 1K

V2 = final volume = unknown

Re-arranging the equation by making V2 the subject of the equation, we obtain;

V2 = V1 T2 / T1

V2 = 6 * 1 / 5

V2 = 1.2 L

The new volume of the gas sample at 1 K is 1,2 L

6 0
3 years ago
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How many moles of water are required to produce 2.15 mol oxygen gas in this reaction
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How am I supposed to know >:(
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Help me answer the questions in the photo i am very confused
AlladinOne [14]

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The range is also the whole of R

Explanation:

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