Which of the following occurs in an oxidation reaction?
Removal of oxygen
Addition of carbon
Addition of neutrons
Removal of electrons
The Correct Answer is D
An oxidation reaction occurs when there is a removal of electrons. Oxidation is the loss of electrons during a reaction by a molecule, atom, or ion. When oxidation occurs, the oxidation state of the chemical species increases.
The other options are not correct because they do not accurately describe what occurs in an oxidation reaction. Removal of oxygen, addition of carbon, and addition of neutrons are not processes that occur in an oxidation reaction.
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Related Questions
Correct Answer is B
Explanation
The layer of skin that lacks blood vessels is the epidermis. The epidermis is the thin outer layer of the skin and does not have any blood vessels within it. It is composed of keratinized, stratified squamous epithelium and is made of four or five layers of epithelial cells, depending on its location in the body.
The other options are not correct because they do contain blood vessels. The papillary layer is part of the dermis, which contains blood vessels ¹. The reticular layer is also part of the dermis and contains blood vessels. The hypodermis is a layer below the dermis and also contains blood vessels.
Correct Answer is A
Explanation
The statement that best supports the grant proposal is a. Repeating the published work will provide independent confirmation of the results. Independent confirmation of results is an important part of the scientific process. By repeating an experiment that was recently published by another researcher, the researcher writing the grant proposal can provide additional evidence to support or refute the original findings.
B. Repeating published work with changed variables will extend the previous results, but this is not the main goal of repeating an experiment.
C. Funding this important research will benefit science in the long term is a general statement that does not specifically support the grant proposal to repeat an experiment.
D. Funding this grant proposal will allow this laboratory to continue to study this topic is also a general statement that does not specifically support the grant proposal to repeat an experiment.
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