Nonmetallic binds are commonly
<u>Answer:</u> The number of atoms in spherical gold nano particle are 
<u>Explanation:</u>
- To calculate the volume of sphere, we use the equation:

where,
r = radius of the sphere =
(Conversion factor:
)
Putting values in above equation, we get:

- To calculate mass of of the substance, we use the equation:

Volume of gold = 
Density of gold = 
Putting values in above equation, we get:

- To calculate the number of moles, we use the equation:

Mass of gold = 
Molar mass of gold = 196.97 g/mol
Putting values in above equation, we get:

- According to mole concept:
1 mole of an element contains
number of atom
So,
moles of gold will contain =
number of atoms.
Hence, the number of atoms in spherical gold nano particle are 
Answer:
The answer to your question is the first option
Explanation:
Just remember that to balance using this method,
first look for the elements that change their oxidation number, and
later count the number of electrons that changed,
later identify which element oxidazes and which reduces and
finally cross the number of electrons that change in each semireaction and write these numbers in the main reaction.
2Cr⁺³ (aq) + 6Cl⁻ (aq) ⇒ 2Cr(s) + 3Cl₂ (g)
2 Cr 2
6 Cl 6
A.
→ 
B.
→ 
C.
→ 
What is a balanced chemical equation?
An equation that has an equal number of atoms of each element on both sides of the equation is called a balanced chemical equation.
A.
→ 
B.
→ 
C.
→ 
Learn more about the balanced chemical equation here:
brainly.com/question/15052184
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Answer:
Well for any equation if all the coefficients are set to 1, this might result in unequal numbers of atoms of the same element on both sides
Explanation:
For example:
(for this equation all the coefficient (the number before element) are 1 but you can clearly see it is not balanced because one side has 1 A atom and other side has 2 B atoms....therefore we need to balance em.
Here both atoms are balanced.