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3 years ago

____ is stored in a fossil fuel, and released in the form of kinetic energy when burned. Apex

Chemistry

1 answer:

Damm [24]3 years ago

5 0

Potential Chemical energy

Explanation:

Potential Chemical energy is stored in a fossil fuel and released in the form of kinetic heat energy when it is burnt.

Potential energy is the energy at rest in a body. It is that energy when no change is happening to a body. There are different forms of potential energy. A good example in fossil fuels is chemical energy.

Kinetic energy of a body is the energy due to the motion of a body. It occurs when particles of a medium are agitated. An example of kinetic energy in fossil fuel occurs when it is burnt.

the formative process of a fossil fuel stores chemical energy.
the process prevents energy rich carbon atoms from being converted back into nature by decomposers.
the hydrocarbon chain stores chemical energy
the energy is released when the molecules are burnt and they form heat energy, a form of thermal energy.

learn more:

Fossil fuel brainly.com/question/9231468

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G.P.E. on Earth is determined by an object's _______and _______

lozanna [386]

Answer:

mass and height of the object.

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1 year ago

3. A 4.00 gram sample of solid gold was heated from 274K to 314K. How much energy was involved?

MrMuchimi

Q = mcΔT = (4.00 g)(0.129 J/g•°C)(40.85 °C - 0.85 °C)
Q = 20.6 J of energy was involved (more specifically, 20.6 J of heat energy was absorbed from the surroundings by the sample of solid gold).

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2 years ago

What is the molarity of a solution in which 175.8 grams of NaCl is dissolved in 1.5 L of water?

Sophie [7]

175.8 g NaCl to moles:
(175.8 g)/(58.44 g/mol) = 3.008 mol NaCl

Molarity = moles of solute/volume of solution in liters

(3.008 mol NaCl)/(1.5 L) = 2.0 M.

The molarity of this solution would be 2.0 M.

8 0

2 years ago

Which of these chemical formulas — Cl2 , KCI, Ar, NO2– represents both an element and a molecule ?

Tasya [4]

The answer is: Cl2.

Chlorine is diatomic molecule made of two chlorine atoms.

Diatomic molecules are molecules made of two atoms.

They can be homonuclear (molecule made of two atoms of the same element) and heteronuclear (molecule made of two different atoms).

Chlorine (Cl) is halogen element.

Halogen elements are in group 17: fluorine (F), chlorine (Cl), bromine (Br) and iodine (I). They are very reactive and easily form many compounds.

4 0

2 years ago

Read 2 more answers

A 5.76 liter sample of a gas at 22.00C mL 748 torr pressure was heated to a final volume of 17.28 liters, with the pressure rema

timama [110]

Answer:

The final temperature was 612 °C

Explanation:

Charles's law relates the volume and temperature of a certain amount of ideal gas, maintained at a constant pressure, using a constant of direct proportionality. In this law, Charles says that at constant pressure, as the temperature increases, the volume of the gas increases and as the temperature decreases, the volume of the gas decreases. That is, Charles's law is a law that says that when the amount of gas and pressure are kept constant, the ratio between volume and temperature will always have the same value:

$\frac{V}{T}=k$

When you want to study two different states, an initial and a final one of a gas and evaluate the change in volume as a function of temperature or vice versa, you can use the expression:

$\frac{V1}{T1} =\frac{V2}{T2}$

In this case:

V1= 5.76 L
T1= 22 °C= 295 °K (Being 0°C=273°K)
V2=17.28 L
T2=?

Replacing:

$\frac{5.76 L}{295 K} =\frac{17.28 L}{T2}$

Solving:

$T2 =\frac{17.28 L}{\frac{5.76 L}{295 K}}=\frac{17.28 L*295 K}{5.76 L}$

T2= 885 °K = 612 °C

The final temperature was 612 °C

5 0

2 years ago