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exis [7]
3 years ago
5

50 POINTS: PLEASE ANSWER AS QUICK AS POSSIBLE!

Chemistry
2 answers:
Dvinal [7]3 years ago
6 0

Explanation:

The lack of a control group

____ [38]3 years ago
5 0
The answer would be “the lack of a control group.” To make the results more accurate, the scientists should have used a placebo group to use as a comparison.
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In an equation what symbol would indicate a mixture
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The movement of gas through a tiny hole is called
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The movement of gas through a tiny hole is called Effusion. Effusion occurs when there is a barrier with one or many small holes that prevent the gas to expand into the new volume unless a gas molecule happens to travel through the hole. The difference between Effusion and Diffusion is the barrier between the two volumes.
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What kind of chemical reaction occurs in a hand-warming product that is worn inside gloves? Explain your answer.
ch4aika [34]

Answer:

exothermic

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2 years ago
What is the difference between natural and artificial transmutation? Give an<br> example of each.
cricket20 [7]

Explanation:

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  • 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

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40. Because sodium chloride is NaCl
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3 years ago
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