Batteries supply electrons to the circuit by releasing negatively charged atoms or ions. These ions are produced by the batteries through a chemical reaction that spontaneously occurs within the battery. So the negative end of the battery pushes the ions towards the positive end of the circuit with the help of the voltage. This is why eventually, batteries "run out" when the electrode is used up and the chemical reaction can no longer continue.
The EPA requires treated tap water<span> to have a detectable </span>level of chlorine<span> to help prevent contamination. The allowable </span>chlorine <span>in </span>drinking water<span> (up to 4 parts per million) pose “no known or expected health risk [including] an adequate margin of safety.”</span>
I believe you are right. pH is the concentration of H+. Therefore the more acidic the more H+.
Answer:
There are four primary impact points when it comes to industrialization — air, water, soil and habitat. The biggest problem is air pollution, caused by the smoke and emissions generated by burning fossil fuels. ... Finally, industrialization has led to dramatic habitat destructionExplanation: hope it helps
Answer:
89 m
Explanation:
Applying
v = 2d/t................... Equation 1
Where v = velocity of sound in air, d = distance of the wall from Karen, t = time taken to hear the echo.
make d the subject of equation 1
d = vt/2..................... Equation 2
From the question,
Given: v = 343 m/s, t = 0.519 s
Substitute these values into equation 2
d = (343×0.519)/2
d = 89.01 m.
d ≈ 89 m
