One times anything is the same number. 1 x 2900= 2900
Answer: A sea of electrons
Explanation:
The atoms didn't change we only added 2 different ones together. 2nd one is right
Answer: 123 g
Explanation: Q =It = nzF. For Ca^2+ z= 2, t = 5.5 x 3600 s and I = 30.0
And F= 96485 As/mol
Amount of moles is n = It /zF = 3.078 mol , multiply with atomic mass 40.08 g/mol
