Answer:
Step-by-step explanation:

Answer:
0.003981 . . . . moles per liter
Step-by-step explanation:
The concentration of H+ ions in the acid will be ...
10^(-2.4) ≈ 0.003981 . . . . moles per liter
The concentration of H+ ions in the base will be ...
10^-11.2 ≈ 0.000 000 000 006310 . . . . moles per liter
To a few decimal places, the difference is ...
0.003981 . . . . moles per liter
_____
The two numbers differ by about 9 orders of magnitude, so the value of the difference between the larger and the smaller is essentially the value of the larger number. The smaller one, by comparison, can be considered to be zero (for subtraction purposes).
Answer:
Sorry Pinsonjon1129 but you are wrong the question is at the bottom how many people plan to participate in at least two sports? the answer 46
Step-by-step explanation:
20 Cross Country and track 6 cross country and basketball so far 26 8 Track and basketball 34 but 12 plan to participate in all three add them all up and you get 46.
Answer:
D. 5/7
Step-by-step explanation: