It's B, because a negative charged Ion is an anion. And since it's 1- ,one valence electron is been added to H. So it has 2 valence electrons.
Answer:
Explanation: A mixture of two partially miscible liquids
Answer:
The size of electric current must 104.5 Ampere.
Explanation:
Moles of electrons = 650 mmol =
mmol = 0.001 mol
1 mol = atoms/ions
Number of electrons = N
N =
Charge on an electron =
Total charge on N electrons = Q
Duration of time = T = 10 min = 10 × 60 s
1 minute = 60 seconds
The size of electric current must 104.5 Ampere.
Answer:
37.5 mL
Explanation:
To solve this problem we can use the formula:
C₁ = 0.400 M
V₁ = ?
C₂ = 0.150 M
V₂ = 100 mL
So now we <em>solve for V₁</em>:
- 0.400 M * V₁ = 0.150 M * 100 mL
So we need 37.5 mL of 0.400 M CuSO₄(aq) to make 100 mL of 0.150 M CuSO₄(aq). That volume could be measured in the 50 mL buret.