Yes (Al) Aluminum and (S) Sulfur would make an ionic compound because you need a metal and a nonmetal to make an ionic compound.
Answer:
92.46 g
Explanation:
The reaction is
I = Current = 19.5 A
t = 4 hours =
F = Faraday constant = 96485.33 C/mol
Molar mass of copper = 63.546 g/mol
Charge is given by
Moles of electrons is given by
Moles of copper is
Mass of copper would be
The mass of copper electroplated is 92.46 g.
Answer: 65.38g of Ca(OH)2 is needed
Explanation:
From The equation of reaction
2 HCl + Ca ( OH ) 2 ⟶ CaCl 2 + 2 H 2 O
NB: Molar mass of HCl= 1+35.5=36.5
Ca(OH)2= 74
From The stoichiometric equation
2mol of HCl(36.5×2=73) require 1mol of Ca(OH)2 (74g)
Hence 64.5g of HCl will require 64.5×74/73= 65.38g of Ca(OH)2
Answer:
C is the answer hoped I helped you have a awesome day by