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slamgirl [31]
4 years ago
15

During fusion _____. hydrogen atoms are split apart U-235 atoms are created helium atoms are created uranium atoms are fused tog

ether
Chemistry
1 answer:
musickatia [10]4 years ago
5 0
The correct answer is the second option. During fusion, uranium atoms are fused together. Fusion reaction happens when two or more nuclei combine or collide to form an element with a higher atomic number. In this process, some of the matter of the fusing nuclei is converted to energy.
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Benzoic acid is a weak monoprotic acid. It has a pKa of 4.20. A student transferred 25.00mL of 0.126M benzoic acid into a beaker
Andru [333]

Answer:

pH of the benzoic acid solution = 3.35

Explanation:

Benzoic acid is a weak monoprotic acid

  pKa = 4.2

⇒ Ka = 6.3 x 10⁻⁵

                                  C₆H₅COOH ⇄ C₆H₅COO⁻ + H⁺

Initial concentration      C molar             0                0

At equilibrium               (c - cα)               cα               cα

                      Acid dissociation constant Ka = \frac{c\alpha X c\alpha  }{c - c\alpha }

                                              ⇒          6.3 x 10⁻⁵ = α²c ................(1)

(for weak electrolyte 1 -α = 1)

Concentration of benzoic acid C = 25 x 0.126 x 10⁻³ = 0.00315 molar

                  From eqn (1)

                          α² = \frac{6.3 X 10^{-5} }{0.00315}

                    ⇒  α = √(\frac{6.3 X 10^{-5} }{0.00315} )

                    ⇒  α = 0.14

So concentration of H⁺ ion = 0.14 x 0.00315 = 0.000441

pH = - log 0.000441 = 3.35    

We not considered H⁺ concentration of water because pH  < 7                  

5 0
4 years ago
Exam number: 007170RR
AleksandrR [38]

Answer:

A open

Explanation:

I am not sure but i think it is!

5 0
3 years ago
Please help.
DanielleElmas [232]
The mixtures in the list are: Whole blood, Air, Saline Solution, Alcoholic drink. A mixture is a substance made by combining two or more different components in such a way that there is no chemical reaction.
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3 years ago
What must happen in order for atoms to bond either lonically or covalently with one another?
irga5000 [103]

Answer:

Explanation:

In ionic bonding, atoms transfer electrons to each other. Ionic bonds require at least one electron donor and one electron acceptor. In contrast, atoms with the same electronegativity share electrons in covalent bonds, because neither atom preferentially attracts or repels the shared electrons.

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2 years ago
The measurement of distance from one point to another is
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The measurement of distance from one point to another is length. 
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