Answer:
Oxidation can be defined in many ways:
In terms of electron, <em>Oxidation</em> can be defined as loss of electrons by an atom or ion or a molecule during a reaction.
In terms of oxygen transfer, <em>oxidation</em> maybe defined as a substance that gains oxygen or loses hydrogen.
It can also be defined as a process in which a carbon atom gains bond to more electronegative atom such as oxygen.
Answer: subduction and sea floor spreading
Explanation:
He knew that the continents today were once joined together by fossil records of plants and animals that were found to be on continents far removed from each other. He knew this also by corresponding land forms that matches up as well. What he couldn’t prove is how the land masses would have moved so far away from each other. Subduction and sea floor spreading move the tectonic plates that the continents sit on. That’s what he was missing.
Answer:
• One mole of oxygen is equivalent to 16 grams.
→ But at STP, 22.4 dm³ are occupied by 1 mole.
![{ \tt{22.4 \: {dm}^{3} \: \dashrightarrow \: 16 \: grams}} \\ { \tt{33.5 \: {dm}^{3} \: \dashrightarrow \: ( \frac{33.5 \times 16}{22.4} ) \: grams}} \\ \\ \dashrightarrow \: { \boxed{ \tt{23.94 \: g \approx \: 24 \: grams}}}](https://tex.z-dn.net/?f=%7B%20%5Ctt%7B22.4%20%5C%3A%20%20%7Bdm%7D%5E%7B3%7D%20%20%20%5C%3A%20%5Cdashrightarrow%20%5C%3A%2016%20%5C%3A%20grams%7D%7D%20%5C%5C%20%20%7B%20%5Ctt%7B33.5%20%5C%3A%20%20%7Bdm%7D%5E%7B3%7D%20%20%5C%3A%20%20%5Cdashrightarrow%20%5C%3A%20%28%20%5Cfrac%7B33.5%20%5Ctimes%2016%7D%7B22.4%7D%20%29%20%5C%3A%20grams%7D%7D%20%5C%5C%20%20%5C%5C%20%20%5Cdashrightarrow%20%5C%3A%20%7B%20%5Cboxed%7B%20%5Ctt%7B23.94%20%5C%3A%20g%20%5Capprox%20%5C%3A%2024%20%5C%3A%20grams%7D%7D%7D)
D
Nuclear reaction involves the nuclei of atoms. The nucleus can either split (as is the case with fission) of fuse as is the case with nuclear fusion. Remember the main particles in the nucleus are protons and neutrons.
Explanation:
In nuclear fission, atomic nuclei split into lighter atoms through loss of protons and neutrons (such as through loos of a beta particles - 2 protons and 2 neutrons). In the case of fusion, two atomic nuclei fuse under pressure (hence adding neutrons and protons) to create heavier atoms (2 hydrogens can fuse to form a helium). Electrons are not involved in nuclear reactions. Electrons are mainly involved in chemical reactions.
Learn More:
For more on nuclear fission and fusion check out;
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