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2 years ago

In which reaction is there a transformation of mass into energy?

Chemistry

2 answers:

algol [13]2 years ago

7 0

Answer:

C. Two isotopes of hydrogen fuse to form helium.

Explanation:

the mass is converted to energy in nuclear reactions so answer is C. Two isotopes of hydrogen fuse to form helium.

shtirl [24]2 years ago

3 0

Two isotopes of hydrogen fuse to form helium

This process is called fusion.
This formula is used in creation of hydrogen bomb.
It is also found in sun .
This process is used to provide heat

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How does the light source readout differ from the x-ray readout in the gizmo??

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X-rays differ from the light source readout in terms of the intensity and the possible damage that can be obtained from the two radiation types. The light source readout is more damaging than the X-rays readout in the gizmo. Therefore, precaution is required when handling the light source readout in the gizmo.

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3 years ago

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3 years ago

How many grams of sulfuric acid are needed to produce 57.0 grams of water? Show all steps of your calculation as well as the fin

antiseptic1488 [7]

Answer:

155.16 g.

Explanation:

Firstly, It is considered as a stichiometry problem.

From the balanced equation: 2NaOH + H₂SO₄ → 2Na₂SO₄ + 2H₂O

It is clear that the stichiometry shows that 2.0 moles of NaOH reacts with 1.0 mole of H₂SO₄ to give 2.0 moles of Na₂SO₄ and 2.0 moles of H₂O.

We must convert the grams of water (57.0 g) to moles (n = mass/molar mass).

n = (57.0 g) / (18.0 g/mole) = 3.1666 moles.

Now, we can get the number of moles of H₂SO₄ that is needed to produce 3.1666 moles of water.

Using cross multiplication:

1.0 mole of H₂SO₄ → 2.0 moles of H₂O, from the stichiometry of the balanced equation.

??? moles of H₂SO₄ → 3.1666 moles of H₂O.

The number of moles of H₂SO₄ that will produce 3.1666 moles of H₂O (57.0 g) is (1.0 x 3.1666 / 2.0) = 1.5833 moles.

Finally, we should convert the number of moles of H₂SO₄ into grams (n = mass/molar mass).

Molar mass of H₂SO₄ = 98.0 g/mole.

mass = n x molar mass = (1.5833 x 98.0) = 155.16 g.

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In which reaction is there a transformation of mass into energy?​

In which reaction is there a transformation of mass into energy?