Mole ratio:
<span>3 Cu(s) + 8 HNO</span>₃<span>(aq) = 3 Cu(NO</span>₃<span>)</span>₂<span>(s) + 2 NO(g) + 4 H</span>₂<span>O(l)
3 moles Cu(NO</span>₃)₂ ----------------- 4 moles H₂O
3.3 moles Cu(NO₃)₂ ---------------- ??
moles H₂O = 3.3 x 4 / 3
moles H₂O = 13.2 / 3
=> 4.4 moles of H₂O
Answer C
That would be the Rutherford model :) hope that helps!
Answer:
B. exothermic; leaving
Explanation:
The exothermic process releases heat, which causes the surrounding area to increase in temperature.
Your hand is releasing heat and makes the temperature of the ice cube increase, to where it melts.
Rmm of N20 = (14X2) + 16 = 44
Percentage by mass of Nitrogen in N20 = 28/44x100 = 63.64
66x0.6634 = 43.7844g of Nitrogen in 66g of N20
Moles = Mass/Mr = 43.7844/14 = 3.13 moles
Answer:
Na(OH)²
Explanation:
We look for the charges in the periodic table