<span>The negative impact of chemistry have on society through the
production and use of chlorofluorocarbons (CFCs) is that lower levels of ozone
allowed more ultraviolet radiation to reach Earth. CFC is an organic compound
which is used refrigerants, propellants and solvents.</span>
Answer:
A: 53.346in
B. 7.62cm
C. 0.116km
D. 57000m
E. 9.82x10-⁸kg
G. 11.375lb
Explanation:
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Answer:
Explanation:
stoichiometry of C₂H₂ to H₂O is 2:2.
Number of moles of C₂H₂ = molar mass of C₂H₂
Since the molar mass of C₂H₂ is 26 g/mol.
Number of C₂H₂ moles reacted = 64.0 g / 26 g/mol = 2.46 mol.
according to a molar ratio of 2:2.
the number of H₂O moles formed = a number of C₂H₂ moles reacted.
Therefore the number of H₂O moles produced = 2.46 mol
Answer:
32.6 %
Explanation:
Given data
- Mass of sucrose (solute): 22.8 grams
- Mass of water (solvent): 47.1 grams
Step 1: Calculate the mass of the solution
The mass of the solution is equal to the sum of the mass of the solute and the mass of the solvent.
m(solution) = m(solute) + m(solvent)
m(solution) = 22.8 g + 47.1 g
m(solution) = 69.9 g
Step 2: Calculate the percent-by-mass of sucrose in the solution
We will use the following expression.

Answer:
in copper from different plastics because appliances of codes to power day in wire copper the cover to use to plastic