Answer:
NO. 10.
performed experiments
NO. 11.
Inference
Explanation:
No 10.
in order to prove that Mary Mellon was in fact infected by typhoid proper experiments needs to be carried out.
No. 11
inference means an assumption due to the situation.
You answer is D
Mountain and Valley Breezes - Geography for Kids - KidsGeo
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In the evening, the mountain slopes cool the surrounding air more quickly than the air found lower in the atmosphere. This creates a high pressure as air becomes more densely packed. The resulting high pressure causes winds to blow down the mountain towards the valley floor.
Answer:
Bismuth, because when three cubes of the same mass were heated and dropped into the same temperature water, the water the bismuth cube was dropped in heated up much less than the water with iron or tin.
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Answer : The pH of a solution is, 7.28
Solution : Given,
Concentration of hydronium ion, =
pH : It is defined as the negative logarithm of hydronium ion concentration or hydrogen ion concentration.
Now put the value of hydronium ion concentration in this expression, we get the pH of the solution.
Therefore, the pH of a solution is, 7.28
Answer:
more electron deficient
Explanation:
The nitro group is an electron withdrawing group. It withdraws electrons from the pyridine ring by resonance.
This electron withdrawal by resonance makes the pyridine ring less electron rich or more electron deficient.
Hence, the nitro group makes the pyrinde ring more electron deficient