Average velocity is the change in distance divided by the time it takes to travel that distance. so the first one.
Answer:
This is a feverish body temperature.
Explanation:
hope it is okay.
<u>Answer: </u>The concentration of
in the solution is 
<u>Explanation:</u>
pH is defined as the negative logarithm of hydrogen ion concentration present in the solution.
.....(1)
We are given:
pH of solution = 2.5
Putting values in equation 1, we get:
![2.5=-\log [H^+]](https://tex.z-dn.net/?f=2.5%3D-%5Clog%20%5BH%5E%2B%5D)
![[H^+]=10^{-2.5}](https://tex.z-dn.net/?f=%5BH%5E%2B%5D%3D10%5E%7B-2.5%7D)
![[H^+]=3.16\times 10^{-3}M](https://tex.z-dn.net/?f=%5BH%5E%2B%5D%3D3.16%5Ctimes%2010%5E%7B-3%7DM)
Hence, the concentration of
in the solution is 
Answer:
<em>Option</em><em> b</em><em>)</em><em> </em><em>It </em><em>is </em><em>a </em><em>combustible</em><em> </em><em>gas </em><em>.</em>
<em><u>maybe</u></em><em><u> this</u></em><em><u> </u></em><em><u>might</u></em><em><u> help</u></em><em><u> u</u></em>