Nonmetals don’t have enough electronegativity to transfer electrons so the electrons are shared between them
PH = -log [H⁺] ←←[log without a specified base means log base 10]
<span>and if you want to use the hydronium ion concentration then use pH = -log [H₃O⁺] </span>
<span>either way the calculation is the same: </span>
<span>They give that a 0.1 M solution of NaHCO₃ has a hydrogen ion concentration of 4.0 x 10^(-9) </span>
<span>so pH = -log (4.0 x 10^(-9)) </span>
<span>pH = 8.4</span>
Answer:
I belive it's the black chair because they were asking which chair experienced the most force in the begining and the black chair had the most force given.
<span>The question says,'Mathew was working with different concentrations of hydrochloric acid in the lab. Which of these would best describe the resulsts Mathew would see if he was using a conductivity apparatus in each of the different acid concentration. The correct answer is C. This is because, acids conduct electricity, the stronger the acid, the brighter the electricity that will be produced while the weaker the acid, the weaker the electricity that will be produced. Thus, higher concentration equals tronger electricity.</span>
I think a shovel is a wedge simple machine.
