Answer:
Positive charges are eliminated by creating lithium vacancies, and for every Ca2+ ion added, a single lithium vacancy is formed.
Explanation:
The addition of calcium oxide as an impurity to lithium oxide creates an interstices due to the replacement of the Lithium ion by calcium ion. The creation of interstices is as a result of the replacement of the positive ions (Lithium by calcium). To make the reaction neutral, these replacements must occur when the interstices are formed
Answer:
A catalytic converter changes nitrogen dioxide to nitrogen gas and oxygen gas is a chemical change.
Explanation:
Hello.
In this case, since physical changes do not modify the molecular composition and structure of the material undergoing it whereas the chemical change does, for catalytic converters we should know they promote chemical reaction in which the composition is changed; for instance, for the given example, the following chemical reaction is the evidence:
As you can see, nitrogen and oxygen are no longer bonded but separated by themselves, therefore, this is a chemical change.
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Answer:
B. a chemical reactions that occurs in the chloroplast of a plant.
Explanation:
Answer:
correct option is A) atmospheric pollutants
Explanation:
- Nuclear power plant do not produce air pollution in the form of carbon dioxide and sulfur dioxide.
- Nuclear as radioactive waste is hazardous to all kind of life and the environment.
- Long-term storage of radioactive waste is required. It is important that waste stabilization is a form that does not react or deteriorate for years.
- If nuclear waste is wasted in the atmosphere or in the oceans and lagre lakes, it eventually comes into contact with organisms.
Answer:
3. small sizes and high ionization energies.
Explanation:
Hello,
Ionization energies are always related with the formation of positive ions. On the other hand, electron affinities are the negative ion equivalent, and their use is almost always confined to elements in groups 6 and 7 of the Periodic Table
Small sizes and high ionization energies turn out into great electron affinities since it is easier for an electron to be added to an atom if it is small and it has a high ionization energy to promote the aforesaid addition.
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