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Problem 11 Medium Difficulty

Which of the following statements is true?
a. Acids and bases cannot mix together.
b. Acids and bases can neutralize each other.
c. Acids, not bases, can change the pH of a solution.
d. Acids donate hydroxide ions $\left(\mathrm{OH}^{-}\right)$ ; bases donate hydrogen ions $\left(\mathrm{H}^{+}\right) .$

Answer

B

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Video Transcript

Hello, everyone. I hope all is well today. I'll be helping you with the 11 problem of the chapter two problems that so 11 is asking which of these statements below is true. So you have, um A that says acids and bases cannot mix together, which is false. They can mix together. Then you have be acids and bases can neutralize each other. Okay, so that seems plausible. Okay, on then you have C which says acids not basis can change. I can change the pH of solutions, which is false because, um, if you had a base to an acid, you can neutralize the asset or view, um, vice first so you could change the peach. Either way, however, you want to state it. The of de acids donate hydroxide ions. Ohh. And bases donate 100 jin ions h so false. So you have acids that r h plus donators. And then you have bases which are ohh, donators. Right. And so we're gonna use this concept in why be is correct? Because they could neutralize each other because h plus, right when it is formed with Oh, it's negative. It produces H 20 which. Okay, well, Obviously that is not going to be appear. They'll be down here, and that has a Ph of seven, which would then neutralize the solution. So I hope you found this helpful, and you have a great day. Thank you.

University of California - San Diego
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