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11111nata11111 [884]
3 years ago
6

Why is it important for scientists to replicate each other's experiments

Chemistry
2 answers:
EastWind [94]3 years ago
6 0
A. Scientific results presented by a scientist should be reproducible anywhere in the world, without this, the results can not be accepted as theory.
guapka [62]3 years ago
4 0

Answer:

It is very much essential for the researchers to replicate the experiments of each other as this will assist in finding whether the essential scientific outcomes are repeatable or not. The scientific results demonstrated by a researcher should be reproducible anywhere in the globe as if it is not tan the outcomes cannot be regarded as a theory.

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4. DBearded waste of Co-60 must be stored until it is no longer radioactive. Cobalt-60
Bingel [31]

464 g radioisotope was present when the sample was put in storage

<h3>Further explanation</h3>

Given

Sample waste of Co-60 = 14.5 g

26.5 years in storage

Required

Initial sample

Solution

General formulas used in decay:  

\large{\boxed{\bold{N_t=N_0(\dfrac{1}{2})^{t/t\frac{1}{2} }}}

t = duration of decay  

t 1/2 = half-life  

N₀ = the number of initial radioactive atoms  

Nt = the number of radioactive atoms left after decaying during T time  

Half-life of Co-60 = 5.3 years

Input the value :

\tt 14.5=No.\dfrac{1}{2}^{26.5/5.3}\\\\14.5=No.\dfrac{1}{2}^5\\\\No=\boxed{\bold{464~g}}

8 0
2 years ago
HELPPPPPPPPPPPPPPPPPPPPPP
ololo11 [35]

Answer:

c

Explanation:

7 0
3 years ago
Please help I will give brainliest!
Fiesta28 [93]

Answer:

b, H2O(s) r H2O(g)

Explanation:

entropy is heat, so increase in heat would mean water gets evaporated or melted, or both in this case. so the only choice above that showed increase in heat is from solid(ice) to gas(water vaper) due to increase in heat in the reaction.

7 0
2 years ago
You want to determine the concentration of a solid solute dissolved in a specified volume of liquid solvent which of the followi
Natali [406]
Generally, chemists prefer to use morality (B) because it only invovles measuring the final volume of the solution and amount of moles of the solute

Hope this helps
6 0
3 years ago
Read 2 more answers
What is the name of a mixture that is easily seen and separated???
DedPeter [7]

Answer:

suspension

Explanation:

a mixture in which particles can be seen and easily separated by settling or filtration.

hope this helps

4 0
2 years ago
Read 2 more answers
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