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ale4655 [162]
4 years ago
12

Complete the three words. The oxidation state tells you how many electrons an atom has g....................... , l.............

............ , or s......................... , in forming a compound.
Chemistry
1 answer:
fgiga [73]4 years ago
8 0

Answer:Gained, Lost , Shared

Explanation:

The oxidation state tells you how many electrons an atom has GAINED.................. , LOST....................... , or SHARED........................ , in forming a compound.

Oxidation state is defined as the  the total number of electrons that an atom gains or loses when forming a chemical bond with another atom.

----To form an ionic bond for example in NaCl, Na, with 11 electrons and one valence electron in its outermost shell donates or lose that valence electron to Chlorine  with 17 electron and 7 in its outermost shell. Therefore Sodium, Na acquires the +1 oxidaton state to become stable and Chlorine acquires the -1 oxidation state  to become stable  forming the  NaCl compound.

To form a covalent compound, There must be sharing of electrons between atoms.For example, in PCl3,  The  phosphorous atom with atomic number 15 shares its three unpaired electrons with the single valence electrons of three chlorine atoms. making the four molecules to attain stability with  Phosphorous having +3 and the chlorine atoms having -1 oxidation states

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3 0
3 years ago
Potassium has four energy levels. how many energy levels do you predict calcium, iron, nickel, and zinc will have? answer
tangare [24]
This task can be easily done once we have the periodic table. From the periodic table, it can be seen that potassium is in the fourth row. Thus, it has four energy levels. If we are to use the same principle as that stated above, the number of energy levels for each are as follow:

Calcium = Ca (in periodic table) =  energy levels

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8 0
3 years ago
What makes a person scientifically literate? In three to five sentences, explain your answer.
BartSMP [9]

It means that a person has the ability to describe, explain, and predict natural phenomena. Scientific literacy entails being able to read with understanding articles about science in the popular press and to engage in social conversation about the validity of the conclusions. Scientific literacy implies that a person can identify scientific issues underlying national and local decisions and express positions that are scientifically and technologically informed. A literate citizen should be able to evaluate the quality of scientific information on the basis of its source and the methods used to generate it. Scientific literacy also implies the capacity to pose and evaluate arguments based on evidence and to apply conclusions from such arguments appropriately.

hope this helps and sorry if this is wrong

5 0
2 years ago
Read 2 more answers
Four properties of water are listed. It has high thermal conductivity. It reacts with metals to form metal hydroxide and hydroge
erica [24]

Answer:

The chemical properties are then number 2 and 4:

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  • It decomposes to form hydrogen and oxygen.

Justification:


The chemical properties can only be observed when the substance undergoes a chemical change, which is that the substance is transformed into one or more different substances.  As result of a chemical change, the composition of the former substance changes, braking some chemcial bonds and formng new ones.


The number 1 states that the water reacts with metals to form metal hydroxide, meaning that the water is transformed into a new substance, the composition will not be H₂O andy more, since the atoms will be combined with atoms of different elements. Same, can be told about the number 2, which states that hydrogen and oxygen were obtained when water decomposed.


On the other hand, the thermal conductivity of water and the boiling point (the temperature at which the water evaporates) can be measured without changing the composition of the water, so those are physical properties.

5 0
3 years ago
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Answer:

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Explanation:

The equilibrium constant expression for a reaction is products over reactants. Since NO₂ has a coefficient of 2, it will become an exponent.

So, it would be:

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Hope that helps.

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