Draw the hydration shells that form around a potassium ion and a chloride ion when potassium chloride dissolves. Label the positive, negative and partial charges.

Explanation:

. It asked to draw the hydration shells that form around a potassium ion and a chloride ion. When potassium chloride dissolves in water, label the positive negative and part partial charges on the atom. So the first thing is, don't be threatened by the term hydration shell. It's a lot easier then it may sound so. That's just asking. How do water molecules interact with your substances? And we've got potassium chloride assault and each of the ions are going to be charged. And so from the charge of the potassium and from the charge on the chlorine, you can easily guess how the the polar water molecule is going tio interact with the ions. So let's just go ahead and draw our potassium and our chloride. So remember, potassium is goingto have a positive charge. Thie chlorine is goingto have a negative charge. You remember that in a water molecule, the oxygen has a slightly stronger affinity for electrons than do hydrogen sze. So when the oxygen pools in the electrons a little bit stronger, it's goingto have a slightly negative charge on the hydrogen. Are each going to have a slightly positive charge. So when you've got your shell around your potassium, you're going tohave mostly the negative side. So you're going to have a little bit of a negative charge here. A little bit of positive charges on your hydrogen Sze so you can either put it right here is the positive partial positive. Or you can put maybe plus half on each of these hydrogen sze and then you're gonna have another number of your oxygen's. Because, remember, opposites attract. So if you have a positive charge here, you're gonna have more negatively charged molecules trying to interact with that. You're gonna have the the positively charged hydrogen tze a little bit away from it and then for the chlorine you're going tohave the opposite. You're going tohave the hydrogen. Is that air facing more towards Ah, the Corinne because again they're slightly positive. Ah, the oxygen slightly negative. And then you might want to just label that the's are partial charges and these are full charges. That's it

A. Enzymes function best at a specific temperature.

Explanation:

One of the factors that determinate the enzyme activity is temperature. Each enzyme has a temperature optimum (the temperature at which its activity is the highest) and it corresponds to the normal body temperature for humans (around 98.6 degrees Fahrenheit or 37 degrees Celsius). Some of them can work on lower temperatures while some of them can increase their activity with the increase in temperature. But, since enzymes are usually proteins, high temperature (above 40 degrees Celsius) might denature them and consequently enzymes lose their activity.