Answer:
B. 13 electrons
Explanation:
Bcoz protons are the same with electrons and the neutrons too.
Answer: True because if you leave it outside and it rains on the bike it will cause rust. Keep it in the garage or something. :) I have a bike btw.
Explanation:
moles Cu produced : 0.002
<h3>Further explanation</h3>
Concentration of copper sulfate (CuSO₄) : 0.319 g/dm³
MW CuSO₄ :
mol CuSO₄ /dm³ :
CuSO₄⇒Cu²⁺ + SO₄²⁻
mol Cu : mol CuSO₄ = 1 : 1 , so mol Cu²⁺=0.002
If you assume you have just 1 liter of sample, you can calculate the mass.
1000mL x 1.4g/mL = 1410g
and 70% of that would be the nitric acid.
Multiplying 1410 by 0.7 would give you 987g, and converting that to moles would give you 15.67M.
Hope this helped! :)
