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gregori [183]
3 years ago
5

What is the critical temperature at which hydrogen can begin to fuse into helium in the core?

Chemistry
1 answer:
Black_prince [1.1K]3 years ago
4 0
Negative 0 hope this helps
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What particles make up an atom?
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Answer:

protons neutrons and electrons

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2 years ago
What step of the scientific method do we decide whether our hypothesis was correct or not
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Test Your Hypothesis by Doing an Experiment
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4 0
3 years ago
The isotope Np-238 has a half life of 2.0 days if 96 grams of it were present on Monday how much will remain six days later
Kipish [7]

Answer:

12.02 g

Explanation:

From the question given above, the following data were obtained:

Half life (t½) = 2 days

Original amount (N₀) = 96 g

Time (t) = 6 days

Amount remaining (N) =..?

Next, we shall determine the rate of disintegration of the isotope. This can be obtained as follow:

Half life (t½) = 2 days

Decay constant (K) =?

K = 0.693 / t½

K = 0.693 / 2

K = 0.3465 /day

Therefore, the rate of disintegration of the isotope is 0.3465 /day.

Finally, we shall determine the amount of the isotope remaining after 6 days as follow:

Original amount (N₀) = 96 g

Time (t) = 6 days

Decay constant (K) = 0.3465 /day.

Amount remaining (N) =.?

Log (N₀/N) = kt / 2.303

Log (96/N) = (0.3465 × 6) / 2.303

Log (96/N) = 2.079/2.303

Log (96/N) = 0.9027

Take the anti log of 0.9027

96/N = anti log (0.9027)

96/N = 7.99

Cross multiply

96 = N × 7.99

Divide both side by 7.99

N = 96 /7.99

N = 12.02 g

Therefore, the amount of the isotope remaining after 6 days is 12.02 g

3 0
3 years ago
What is the process where a liquid changes from its liquid state to a gaseous state?
Mars2501 [29]
When a liquid goes from a liquid state to a gaseous state it is called evaporation
7 0
3 years ago
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Which quantity can be calculated using the equation E = mc2?
lidiya [134]
Energy, mass, and the speed of light squared.
(E, M, and C^2 respectively).

Hope this helped! :)
5 0
3 years ago
Read 2 more answers
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