Which subatomic particle is exchanged in the combustion of carbon to form carbon dioxide (C + O2 → CO2)? A. neutron B. proton C. electron D. alpha particle

C. electron

Explanation:

This is because since the carbon atom has an atomic number of 6 and an electronic configuration of 2,4, it shares two pairs of electrons with two oxygen atoms with atomic number 8 and electronic configuration 2, 6.

The 4 electrons (two pairs of electrons) on the outermost shell of the carbon atom are shared one pair each for each oxygen atom, which enables the oxygen atom attain the stable octet configuration.

Also, the above reaction is a chemical reaction and not a nuclear reaction, so an alpha particle cannot be involved.

bacteria that live on the ocean floor are sustained by phytoplankton. phytoplankton, microscopic marine photosynthetic organisms, have a vastly significant role to play not only in the marine food web of which they’re part of, but also on a more global scale. despite their infinitely small size in comparison to other marine organisms, these tiny creatures occupy an immensely important ecological niche: they are the foundation of the marine food web, and as primary producers, play key roles in supporting all other organisms in the marine environment, as well as in the regulation of the earth’s climate through the sequestration of carbon, oxygen production, and other related processes. phytoplankton account for roughly half of all global primary productivity; therefore, their significance extends far beyond the marine environment alone. there is an intriguing sense of irony in the realization that these tiny living beings that often live out their existence unnoticed and undetected by the rest of the world, have such a far-reaching impact on the lives of virtually all other living organisms on the planet, particularly on those in the marine environment. the world that we have become accustomed to has been and is continuously shaped by the workings of these miniscule yet vital “plants of the sea”.

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pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y