Number of moles= mass/ molar mass
Or n=m/MM
n = number of moles
m = mass
MM = molar mass
1) n CuO = 2.4g / 79.54g/mol = 0.03 mol CuO
2) n Cu(NO3)2.xH2O = 7.26 g / 205.6 = 0.035 moles of Cu(NO3)2.xH2O
3) 205.6 g
Cu = 63.5 g
N = 14g
O =16g
H= 1 g
63.5+ (14+(16*3))*2+1*2+16 =205.6 g
4) yes is 188g
5) I don’t know, I assume was 1
Answer:
Electrons can flow from one atom to another
Explanation:
Fundamentally, opposite charges attract each other, while same charges repel each other. This implies that protons, positively charged species, would repel each other, while electrons, negatively charged species, would also repel each other.
There would be an attraction force between protons and electrons, on the other hand.
Metals tend to lose their electrons to non-metals to form positively charged ions, also known as cations. Non-metals gain these electrons to become negatively charged anions.
Answer:
B
Explanation:
The mechanism of this process: the electrolytic cell converts the electrical energy to chemical energy, using external energy source.
