Answer:
oil = burn for 8 days = absurd = doesnt make sense but it happened lol
Explanation:
The pH scale for acids and bases ranges from 1 - 14. The answer is letter C. The rest of the choices do not answered the question above. There are quite a few relationships between [H+] and [OH−] ions. And because there is a large range of number between 10 to 10-15 M, the pH is used. pH = -log[H+] and pOH = -log[OH−]. In aqueous solutions, [H+ ][OH- ] = 10-14. From here we can derive the values of each concentration.
-log[H+ ] + -log[OH- ] = -log[10-14]
pH + pOH = 14
So pH = 14 – pOH and pOH = 14 –
pH
It would be B.
Answer: 1.91cm3
Explanation:
10.49g of silver dissolves is 1cm3 of solution.
Therefore 20g of silver will dissolve in = 20/10.49 = 1.91cm3 of the solution.
Answer: Train
Since the train is the largest, it has more momentum. Adding the momentum to the speed, gives it the most kinetic energy. After train would come car, then bicycle, then skateboard.
Hope I helped! :)
