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PolarNik [594]
3 years ago
10

One way that scientists ensure that data are reliable is through

Chemistry
1 answer:
Vesna [10]3 years ago
4 0
Replicating experiments

(If u don’t mind can y mark me brainiest it would really help :) )
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What is the difference between natural and artificial transmutation? Give an<br> example of each.
cricket20 [7]

Explanation:

Natural transmutation is the spontaneous disintegration of a heavy nuclide into lighter ones or fusion of lighter nuclides into heavier ones. These processes occurs naturally without anything inducing them. Nuclear fission of light elements in the core of stars is an example of natural transmutation.

  • Typically, all nuclei with atomic number greater than 83 are naturally radioactive.

         ²³⁸₉₂U  →  ²³⁴₉₂Th  + ⁴₂He

In artificial transmutation,  nuclear reactions are initiated through the collision of a nuclide with a high speed particle. Here, unstable nuclei are produced artificially in nuclear reactions. Such unstable nuclei also produce radiations.

          ¹₀n  + ²³₁₁Na → ²⁴₁₁Na + γ

Learn more:

Transmutation brainly.com/question/3433940

#learnwithBrainly

6 0
3 years ago
I need help with 18-23
Bess [88]

Answer:

18. Liters

19. grams

20. meters

21. meters

22. liters or mass (not sure on this one) it depends

23. grams

7 0
2 years ago
What is the formula for Chromium (III) Bisulfite?​
Anit [1.1K]

Answer:

Cr2(SO4)3

Explanation:

6 0
3 years ago
A first order reaction has a rate constant of 0.543 at 25 c and 6.47 at 47
alukav5142 [94]

The activation energy Ea can be related to rate constant (k) at temperature (T) through the equation:

ln(k2/k1) = Ea/R[1/T1 - 1/T2]

where :

k1 is the rate constant at temperature T1

k2 is the rate constant at temperature T2

R = gas constant = 8.314 J/K-mol

Given data:

k1 = 0.543 s-1; T1 = 25 C = 25+273 = 298 K

k2 = 6.47 s-1; T = 47 C = 47+273 = 320 K

ln(6.47/0.543) = Ea/8.314 [1/298 - 1/320]

2.478 = 2.774 *10^-5 Ea

Ea = 0.8934*10^5 J = 89.3 kJ

5 0
3 years ago
What is the concept of galactic recycling?
frozen [14]
Galactic recycling is a natural phenomenon in which the stars expel some gas into the space so that it would mix with the interstellar medium. As a result, this would produce new younger stars. So, basically, the concept done here is the mass and energy conservation. In order to create new species, the energy must come from another source.
5 0
3 years ago
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