Step-by-step explanation:
it's so much work, here's the first half untill i do the rest
i added the rest, i hope i helped somehow good luck!! :)
Answer:
The answer is C.
<em>Have</em><em> </em><em>A</em><em> </em><em>Nice</em><em> </em><em>Day</em>
Total charge at park, T = 2×charge on adults + 4×charge on children .
T =$(2×16 + 4×10)
T = $72
Now, Melissa's father paid $100 .
Amount her father get back is :
A = $( 100 - 72 )
A = $28
Therefore, her father get $28 back.
Hence, this is the required solution.
I think it’s 6.72 cm !! let me know if it’s wrong
Answer:
Given:
The pH of solution A = 2.4
The pH of solution B = 9.4.
Solution:
The hydrogen ion concentration is the amount of hydrogen ions present in the given solution usually expressed in terms of moles pere litre .
(A) hydrogen-ion concentrations of the solution.
Now,
The hydrogen ion concentration of the solution A
Similarly
hydrogen ion concentration of the solution B
(b) The hydrogen ion concentration of solution A is and the solution B is
so we can conclude that the hydrogen ion concentration of solution A is times greater than solution B
(c) The solutions A and Solution B differ by 7 order of magnitude