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Jobisdone [24]
3 years ago
9

1.The splitting of a heavy, unstable nucleus into two lighter nuclei is called _____.

Chemistry
1 answer:
fredd [130]3 years ago
6 0

Answer:

A) Fission

Explanation:

Fission is the splitting of a heavy, unstable nucleus into two lighter nuclei, and fusion is the process where two light nuclei combine together releasing vast amounts of energy.

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Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons. Show the for
Alexus [3.1K]

Answer:

See explanation below

Explanation:

In this case, let's see both molecules per separate:

In the case of SeO₂ the central atom would be the Se. The Se has oxidation states of 2+, and 4+. In this molecule it's working with the 4+, while oxygen is working with the 2- state. Now, how do we know that Se is working with that state?, simply, let's do an equation for it. We know that this molecule has a formal charge of 0, so:

Se = x

O = -2

x + (-2)*2 = 0

x - 4 = 0

x = +4.

Therefore, Selenium is working with +4 state, the only way to bond this molecule is with a covalent bond, and in the case of the oxygen will be with double bond. See picture below.

In the case of CO₂ happens something similar. Carbon is working with +4 state, so in order to stabilize the charges, it has to be bonded with double bonds with both oxygens. The picture below shows.

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3 years ago
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Snowcat [4.5K]

Answer:

a

Explanation:

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3 years ago
Which of the following statements is true? Water (H2O) is an element. A golf ball has a larger volume than a baseball. Most of t
Ipatiy [6.2K]

Most of the substances found on earth are compounds.

(water is made up of 2 elements)

(a baseball is larger than a golf ball by default)

(water has a pH value of 7)

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3 years ago
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I need help please thank you
Kazeer [188]

Answer:

In science, sound is defined as the transfer of energy from a vibrating object in waves that travel through matter. Most people commonly use the term sound to mean what they hear when sound waves enter their ears. The tree above generated sound waves when it fell to the ground, so it made sound according to the scientific definition

Explanation:

sound waves

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3. Some of the reagents used in this lab are easily confused: such as persulfate (S208?)
padilas [110]

Answer:

Different compounds are formed.

Explanation:

Due to this switching of chemicals, the result of both beakers will be different because the chemicals react with the different solution in the beaker. The composition of both chemicals are different from one another which produces different compounds or products when they are mixed with the solution so we can say that this switching of chemicals will definitely affect the results of the experiment. The student will observe the formation of different compounds and different colour of the solution.

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3 years ago
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