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Lynna [10]
3 years ago
6

A picture hanging on a wall has energy.

Chemistry
2 answers:
KonstantinChe [14]3 years ago
8 0
It has potential energy.
Kipish [7]3 years ago
6 0

Explanation:

Potential energy is defined as the energy present within an object due to its position.

Mathematically,        P.E = mgh

where,           m = mass of object

                      g = acceleration due to gravity

                      h = height of the object

Therefore, when a picture hanging on a wall then it is placed at a definite position from where it is not moving. Hence, the energy possessed by it will be potential energy.

Therefore, we can conclude that a picture hanging on a wall has  potential energy.

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HNO3 + KOH → ____ + _____
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HNO3 + KOH → _KNO3___ + __H2O___

Explanation:

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3 years ago
What characterizes a homogeneous mixture?
Vadim26 [7]
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4 0
3 years ago
If body fats has a density of 0.94 g/mL and 3.0 liters of fat are removed, how many pounds of fat were removed from the patient?
-Dominant- [34]

Answer:

6.217 pounds

Explanation:

We are given;

  • Density of body fats 0.94 g/mL
  • Volume of fats removed = 3.0 L

We are required to determine the mass of fats removed in pounds.

We need to know that;

Density = Mass ÷ volume

1 L = 1000 mL, thus, volume is 3000 mL

Rearranging the formula;

Mass = Density × Volume

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but, 1 pound = 453.592 g

Therefore;

Mass = 2,820 g ÷ 453.592 g per pound

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Thus, the amount of fats removed is 6.217 pounds

4 0
3 years ago
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3 years ago
Cyclopropane is more reactive than most cycloalkanes. What factors lead to cyclopropane being less stable than the other cycloal
maw [93]

Answer: The factor that lead to cyclopropane being less stable than the other cycloalkanes is the presence of a RING STRAIN.

Explanation:

In organic chemistry, the end carbon atoms of an open aliphatic chain can join together to form a closed system or ring to form cycloalkanes. Such compounds are known as cyclic compounds. Examples include cyclopropane, cyclobutane, cyclopentane and many among others.

Cyclopropane is less stable than other cycloalkanes mentioned above because of the presence of ring strain in its structural arrangement. The ring strain is the spatial orientation of atoms of the cycloalkane compounds which tend to give off a very high and non favourable energy. The release of heat energy which is stored in the bonds and molecules cause the ring to be UNSTABLE and REACTIVE.

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8 0
2 years ago
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