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Hitman42 [59]
3 years ago
12

Why is peer review important when publishing experimental results? A. Peer review makes the experiment repeatable. B. Peer revie

w is necessary for the scientific method to be followed. C. Peer review keeps the data from being biased. D. Peer review makes the results more reliable.
Chemistry
2 answers:
MA_775_DIABLO [31]3 years ago
4 0
The answer is D. At least that's what I think.
cluponka [151]3 years ago
3 0

Answer:

D. Peer review makes the results more reliable.

Explanation:

Hello,

When one publishes experimental results, during the experimentations, several mistakes such as wrong data record, fluctuating-displayed measurements (specially by the balances), trembling while pipetting, wrong procedures and others could be done so the results will be affected. Thus, a peer is important because that person could help us to correct things we're doing wrongly or do them again to get a common agreement between the employed techniques and recordings.

Best regards.

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In this case, we should understand oxidizing agents as those substances able to increase the oxidation state of another substance, therefore, in B. reaction we notice that copper oxidation state at the beginning is zero (no bonds are formed) and once it reacts with nitric acid, its oxidation states raises to +2 in copper (II) nitrate, thus, in B. Cu + 4HNO3 → Cu(NO3)2 + 2H2O + 2NO2 nitritc acid is acting as the oxidizing agent.

Moreover, in the other reactions, copper (A.), sodium (C. and D.) remain with the same initial oxidation state, +2 and +1 respectively.

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