Someone answer this please.
2 answers:
Answer: The percent composition of oxygen is 54.5%
Explanation:
Below I have attached my work through, but essentially the percent composition relies on finding the mass of the oxygens and dividing it by the mass of the whole compound. The masses of the elements can be found on the periodic table and added together to get a mass of the whole compound- ascorbic acid. Then, you turn this proportion into a percent by multiplying by 100%.
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The force reduces
Explanation:
According to Coulomb's law, the force between the charges will reduce if the separation between the charges increases.
Coulomb's law states that "the force between two charges is a directly proportional to the product of the magnitude of the charges and inversely proportional to the square of their separation.".
F =
where F is the electric field force
K is the constant of the field
is charge 1
is charge 2
r is the separation
We see that the separation is inversely proportional to the force between the charges. The larger the separation, the weaker or smaller the force.
learn more:
Newton's laws brainly.com/question/11411375
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Explanation:
Lithium, sodium and potassium are all group 1A elements and when we move down a group then there occurs an increase in atomic size of the elements. As lithium is the smallest and potassium being the largest so, when each of them will lose an electron and obtain a positive charge then size of lithium will further decrease.
Therefore, ions are ranked according to their increase in size as follows.
When an atom tends to gain electrons then it acquires a negative charge. This means that size of the atom increases.
So, more is the negative charge present on an atom more will be its atomic size. Therefore, correct order of increasing size for is as follows.
Similarly, order of increasing size of is as follows.