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xz_007 [3.2K]
3 years ago
5

Nuclear fusion is the combining of atomic nuclei to produce energy and new types of _____. A. light B. power C. matter D. radiat

ion
Chemistry
1 answer:
Drupady [299]3 years ago
7 0

Answer:

C. matter

Explanation:

When hydrogen atoms collide at very high speeds, the natural electrostatic repulsion that exists between the positive charges of their nuclei is overcome and the atoms fuse, this fusion of light hydrogen atoms produces a heavier element, helium.

<em>In short, nuclear fusion is a process by which nuclear reactions between light elements form heavier elements (up to iron), therefore fusion produces new types of matter. </em>

I hope you find this information useful and interesting! Good luck!

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POSSIBLE POINTS:
Hitman42 [59]

Answer:

63.7

Explanation:

Percent yield is actual yield over theoretical yield. In this case, 10/15.7 = .637 = 63.7%.

6 0
2 years ago
A scientist produces zinc iodide (zni2). (a) calculate the minimum mass of zinc that needs to be added to 0.500 g of iodine so t
harina [27]

The minimum mass of Zinc, Zn that needs to be added to 0.500 g of iodine so that the iodine fully reacts is 0.128 g

<h3>Balanced equation </h3>

Zn + I₂ —> ZnI₂

Molar mass of Zn = 65 g/mol

Mass of Zn from the balanced equation = 1 × 65 = 65 g

Molar mass of I₂ = 127 × 2 = 254 g/mol

Mass of I₂ from the balanced equation = 1 254 = 254 g

SUMMARY

From the balanced equation above,

254 g of I₂ required 65 g of Zn

<h3>How to determine the mass of Zn needed </h3>

From the balanced equation above,

254 g of I₂ required 65 g of Zn

Therefore,

0.5 g of I₂ will require = (0.5 × 65) / 254 = 0.128 g of Zn

Thus, the minimum mass of Zn required is 0.128 g

Learn more about stoichiometry:

brainly.com/question/14735801

4 0
2 years ago
Which of the following is used in pencils?
barxatty [35]
Graphite is used

hope this helps
8 0
4 years ago
Read 2 more answers
An inflated balloon contains X air molecules.After some time the volume of the balloon is found to be the half at the same tempe
astra-53 [7]

<u>Answer:</u>

(a): The balloon will contain \frac{X}{2} number of molecules now.

(b): The gas law associated with this is Avogadro's law.

<u>Explanation:</u>

Avogadro's law states that the volume of the gas is directly proportional to the number of moles of the gas at constant pressure and temperature

Mathematically,

V\propto n                   (At constant pressure and temperature)

OR

\frac{V_1}{n_1}=\frac{V_2}{n_2}               .....(1)

where,

V_1\text{ and }n_1 = Initial volume and number of moles

V_2\text{ and }n_2 = Final volume and number of moles

We are given:

V_2=\frac{V_1}{2}

Putting values in equation 1, we get:

\frac{V_1}{n_1}=\frac{V_1}{2\times n_2}\\\\n_2=\frac{n_1}{2}

(a):

If n_1 number of moles of gas contains X number of molecules

So, \frac{n_1}{2} number of moles of gas will contain = \frac{X}{n_1}\times {n_1}{2}=\frac{X}{2} number of molecules

Hence, the balloon will contain \frac{X}{2} number of molecules now.

(b): The law used is Avogadro's law.

8 0
3 years ago
Which of the following factors contribure
xxMikexx [17]
D. All of the above


Ground level ozone is created when sunlight reacts with certain chemicals that come from sources of burning fossil fuels, such as factories or car exhaust. When particles in the air combine with ozone, they create smog. Smog is a type of air pollution that looks like smoky fog and makes it difficult to see. Additionally, Cities located in basins surrounded by mountains may have smog problems because the smog is trapped in the valley and cannot be carried away by wind
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3 years ago
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