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choli [55]
3 years ago
9

Approximately what is the half-life of uranium-235?

Chemistry
2 answers:
hoa [83]3 years ago
6 0

Answer:

It is believed about 700 million years. Crazy. I hope this helps! : )

Gennadij [26K]3 years ago
4 0

Answer:

703,800,000 years

Explanation:

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dedylja [7]

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It looked like the continents fit together like puzzle pieces

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Which of the following is a property of both solids and liquids?
givi [52]
I would say none because thats the only one that makes any sence.
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What has a higher density Ice cubes or ice spheres pls pls pls help​
Verizon [17]
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Uranium-238 (U-238) decays into lead-206 (Pb-206). Which of the following is a true statement?
Doss [256]
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4 0
3 years ago
glucose 6‑phosphate+H2O⟶glucose+Pi glucose 6‑phosphate+H2O⟶glucose+Pi K′eq1=270 K′eq1=270 ATP+glucose⟶ADP+glucose 6‑phosphate AT
ddd [48]

Answer:

-30.7 kj/mol

Explanation:

The standard free energy for the given reaction that is the hydrolysis of ATP is calculated using the formula:  ∆Go ’= -RTln K’eq

where,  

R = -8.315 J / mo

T = 298 K

For reaction,

1. K′eq1=270,

∆Go ’= -RTln K’eq

= - 8.315 x 298 x ln 270

=  - 8.315 x 298 x 5.59

= - 13,851.293 J / mo

= - 13.85 kj/mol

2. K′eq2=890

∆Go ’= -RTln K’eq

= - 8.315 x 298 x ln 890

=  - 8.315 x 298 x 6.79

=  - 16.82 kj/mol

therefore, total standard free energy

= - 13.85 + (-16.82)

=  -30.7 kj/mol

Thus, -30.7 kj/mol is the correct answer.

6 0
3 years ago
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