Can’t help you man, sorry
Answer: The distance of the earth from the sun is 
Explanation:
Speed of light = 
Time taken to travel from sun to earth = 8.30 mins = 
(1min=60 s)
As we know ; Speed is defined as the distance travelled per unit time.
Hence distance between sun and earth =
Thus the distance of the earth from the sun is
Carbon, nitrogen, oxygen, and hydrogen
The balanced equation for the reaction is as follows
Cu₂O + 2HCl ---> 2CuCl + H₂O
Molar ratio of Cu₂O to CuCl is 1:2
mass of Cu₂O reacted - 73.5 g
Number of moles of Cu₂O reacted - 73.5 g / 143 g/mol = 0.51 mol
According to the molar ratio,
when 1 mol of Cu₂O reacts then 2 mol of CuCl is formed
therefore when 0.51 mol of Cu₂O reacts then - 2 x 0.51 mol of CuCl is formed
number of CuCl moles formed - 1.02 mol
mass of CuCl formed - 1.02 mol x 99 g/mol = 101 g
mass of CuCl formed is 101 g
