Answer:
Volume of water added = 148.4 mL
Explanation:
Given data:
Initial volume = 424 mL
Initial molarity = 0.189 M
Final molarity = 0.140 M
Volume of water added = ?
Solution:
Formula:
M₁V₁ = M₂V₂
0.189 M×424 mL = 0.140 M×V₂
V₂ = 0.189 M×424 mL /0.140 M
V₂ = 80.136 M.mL / 0.140 M
V₂ = 572.4 mL
Final volume of solution is 572.4 mL.
Volume of water added = Final volume - initial volume
Volume of water added = 572.4 mL - 424 mL
Volume of water added = 148.4 mL
Answer:
I think
Explanation:
Li = 2s^1
Be = 2s^2
B = 2p^1
C = 2p^2
I think that is what it is asking if not sorry
that's right.............:)
Valency electrons are the outer shell electrons . While valency is the number of electrons lost, gained or shared . Phosphorus has 5 valence electrons
Phosphorus has 3 as a valency.
Hope this is correct.
Answer:
radio waves
Explanation:
On the far left of the diagram are radio waves, which include microwaves. They have the longest wavelengths and lowest frequencies of all electromagnetic waves. They also have the least amount of energy.