Hey~ :) So, For the first one... 1. A pH scale<span> measures how much acidic or basic a substance is. </span>The pH scale usually ranges<span> from 0 to 14. .... </span>The pH scale would be, (0 - 14<span>), I think. SO the second one for 1. :)
2. So, Since a</span><span>n </span>automobile battery<span> can explode or contain and cause a </span>sulfuric acid burn. I'm thinking it would be thee 1st one for the 2nd! :) sulfuric acid<span>
3. </span>Electrochemical and electrolytic reduction cleaning processes, so.... they are the most common techniques utilized to halt, stabilize, and even reverse the oxidation of the metal. So Overall I think this would most-likely Be electrolysis.
4. Is 1, because, <span>pH of 1 (e)
5.I am thinking this would Be </span>ion. Because, an ion is an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
If we assume that the speed of sound is constant, that travels along a straight line, and that the echo is instantaneous, we can find the total distance travelled by the sound, as follows, just applying the definition of average velocity:
If we assume that the time needed to reach to the cliff, is the same used for the return travel, the length of the lake will be exactly half of the total distance calculated:
