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Aleks04 [339]
3 years ago
13

Which statement about fission is correct?

Chemistry
2 answers:
sashaice [31]3 years ago
6 0
Answer chocies .......................                                                                  
Korolek [52]3 years ago
4 0

Answer:

D. Fission is the splitting of a nucleus when it is bombarded by neutrons.

Explanation:

answer for Plato users

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Chlorophyll a is one of the green pigments found in plants. Chlorophyll a has the molecular formula C55H72MgN4O5. How many atoms
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A-136 because 55+72+4+5=136.
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4 years ago
Balance the chemical equation. Based on the equation, how many grams of bromine are produced by the complete reaction of 11 gram
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Answer:

Explanation:

The balanced chemical equation is Cl2 + 2KBr → 2KCl + Br2. The amount of bromine is calculated as follows:

11.0 g KBr (1mol KBr/119.002g KBr * 1mol Br2/2mol KBr * 159.808g Br2/1mol Br2= 7.39 g Br2.)

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3 years ago
Given that Kp = 3.5 x 10-4 for the reaction 2 CO(g) <=> C(graphite) + CO2(g), what is the partial pressure of CO2(g) at eq
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<u>Answer:</u> The partial pressure of carbon dioxide at equilibrium is 0.0056 atm

<u>Explanation:</u>

The given chemical equation follows:

                     2CO(g)\rightleftharpoons C\text{ (graphite)}+CO_2(g)

<u>Initial:</u>             4.00

<u>At eqllm:</u>       4.00-2x        x                 x

The expression of K_p for above reaction follows:

K_p=\frac{p_{CO_2}}{(p_{CO})^2}

The partial pressure of pure solids and liquids are taken as 1 in the equilibrium constant expression.

We are given:

K_p=3.5\times 10^{-4}

Putting values in above expression, we get:

3.5\times 10^{-4}=\frac{x}{(4-2x)^2}\\\\x=0.0056,718.28

Neglecting the value of x = 718.28 because equilibrium pressure cannot be greater than initial pressure

Partial pressure of CO_2 = 0.0056 atm

Hence, the partial pressure of carbon dioxide at equilibrium is 0.0056 atm

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How many valence electrons does oxygen have?<br> A. 2<br> B. 6<br> C. 8<br> D. 16
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Oxygen has 6 valence electrons, so B

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I WILL GIVE YOU 10 POINTS!!!
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The answer is 268.1 u....
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