Explanation:
fancy number to a delocalized electrons are electrons that move randomly throughout the metallic structure
We have that The the mass change when the copper coin was made to look silver is an increase in mass
Correct option C
It increased.
It is important to note that the copper coin after its cutting into shape will have a specific mass or weight and the silver coating solution will also have a net value of mass or weight
Therefore
The the mass change when the copper coin was made to look silver is an increase in mass
Correct option C
It increased.
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24
Explanation:
An atom is the smallest indivisible particle of any matter. Atoms are distinct and distinguishable from one another and are called elements:
CH₃(CH₂)₅0CH₃
There are 3 different kinds of atoms in the compound above called
elements
Carbon
Hydrogen
Oxygen
In the compound the subscripts gives the number of atoms:
C - 7
H - 16
0 - 1
Number of atoms in the compound is 24.
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Shape of PCl₆⁻¹, is octahedral.
Hybrdisation of PCl₆⁻¹ is sp³d².
This can be seen the image attached.
The angle between phosphorous and chlorine is 90⁰C. As it has octahedral geometry.
So the answer is as follows:
Shape of PCl₆⁻¹, is octahedral.
Hybrdisation of PCl₆⁻¹ is sp³d².
The angle between phosphorous and chlorine is 90⁰C.
Answer:
- <u>TRUE:</u> <em>Percent concentration is one of the most common and basic concentration measurement used by general public</em>
Explanation:
In chemistry there are many <em>concentration measurements</em> used to describe the mixtures. Some of them are, percent, molarity, molality, and molar fraction, among others.
Percent concentration is a popular one because it is commonly understood and used by the non specialist people, i.e. general public.
The percent concentration of a component is defined as: (amount of component in the mixture / amount of mixture) × 100.
The amounts may be measured in mass units (e.g grams) or volume units (e.g. mililiters).
For solutions, mass percent concentration is:
- % = (mass of solute / mass of solution) × 100.
And voluem percen contration is:
- % = (volume of solute / volume of solution) × 100
Since percentage is used in many profesional and personal activities, most persons use it.
For example, rubbing alcohol, that everyone buys in pharmacies, is 70%; vinager, used in the food, is acetic acid at 5% - 8%.
