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7 Why is water called "the universal solvent'? Diagram the process of salt, NaCl dissolving in water: 8. Define hydrophilic and hydrophobic: 9. Soaps and ...

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7 Why is water called "the universal solvent'? Diagram the process of salt, NaCl dissolving in water: 8. Define hydrophilic and hydrophobic: 9. Soaps and detergents are surfactants. What is a surfactant and how does adding soap to laundry help to remove dirt and grease from your clothing? 10.List five special properties of water (other than those listed in this assignment). 1.Where does the drinking water for your home come from? How is the water supplied? How is the water tested? How

7 Why is water called "the universal solvent'? Diagram the process of salt, NaCl dissolving in water: 8. Define hydrophilic and hydrophobic: 9. Soaps and detergents are surfactants. What is a surfactant and how does adding soap to laundry help to remove dirt and grease from your clothing? 10.List five special properties of water (other than those listed in this assignment). 1.Where does the drinking water for your home come from? How is the water supplied? How is the water tested? How often has the water been tested? By whom? Where does the waste water go?



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The "Chemistry in Focus" segment Water, Water Everywhere, But $\ldots$ discusses the desalinization of ocean water. Explain why many salts are soluble in water. Include molecularlevel diagrams in your answer.

Problem 14 party for the sense salute. Same salute that is sodium chloride in different Sullivan solid solid injections. That is I know that add salute are the same sam okay, because water X. P. X variances hydrogen bonding while Benzene has one Li this person force force therefore solvent, solvent in traction delta as solvent are greater for water, so better for water pending. Okay, on the other hand, salute salute. In traction delta X mix are much weaker between ionic sodium chloride and non polar Benzene then between ionic sodium chloride and polar water. Sure, there are academics for sodium chloride and water much greater than the academics for show them cried and Benzene. It is there large difference in the friends in Delta estimates that cows surely um clarity to be soluble in water but not in benzene bending. Okay, This is our And therefore part 1st in part B. I am die pool horses between Catalans die ins and water molecule and relatively small artist energies, energies leads to strongly hydrated kittens. This is our final and support partly

Solid ability is the ability for a company into the solving water. So that means that you have a compound and one place and water is going to fully break up. So let's say we have a comp Uncle X Y and you places and water It is going to rig up into explosive. And why minus and usually we don't show the water. But what's happening here is the water molecules are really coming to attach themselves between his company. So they kind of hang around it and I tried themselves to it. And if you notice I'm drying, the oxygen's are on the positive and the hydrogen Zahran negative because oxygen is partially negative. Kind of like a magnet, right? Does. That's what they're so good kind of behaves they think about it like a magnet, right? This is a permanent magnet with temporary charges. So 100 in this partially positive and oxygen this partial negative. And when you have a compound that is main fully a positive charges negative charges, they're gonna be very attracted to this water molecule, right? The positive side is gonna be attracted to the negative iron, and the negative side is gonna be attracted to the positive I it and the fact that it stays together, it means that is gonna hold up really strongly. Does this call a polar molecule? A polar molecule is one that has uneven distribution of electrons. In this case, the oxygen has most of the elections. So if you look at that lewis dot structure of water, it looks like this where most of the elections are on the oxygen. And so for the share elections, right, this is oxygen is gonna hold on really tight those hydrogen. So this is a very stable molecule. It happens a lot. And it waters also called something. I'm fourth Eric, which means that it has ability to be an asset or a base. And this is because water, if you think of water, it's made out of two of the most common I un's that we see throughout reactions, which is hydrogen hydroxide, and thus we usually gives us water. So water is very, very likely to form what a really likes a form. And it also really likes to attach itself to other irons or polar couvillon molecules that air molecules that are non metals that also have partial charges. Water is also very good a being what is also really good a being an Exxon solvent because it has taken Sitton What is really good being an excellent solvent because it can access a solid liquid or gas notice that I wrote. L and those are a quiz. Those means that air their irons in water but water itself is liquid is pure is one of those few pure liquids that we can work with, right. And also, if you look at something called a pH scale of acidity and basis, city water is the main scale of what we compare it to. A ph of seven, which is in the middle, will be neutral, which it would just be water.

So when we're talking about water here, sometimes water is called the universal solvent, and water is super important in chemistry and in life, water can dissolve many different things. Many different substances can be dissolved using water. That's why it's called the universal Solvent. Water is also required for life. We know that all living things require water and moisture to survive, and water can also be used for cleaning. So those were just a few things that you can come up with that tell us why water is so important.

This problem deals with the understanding of polarity and how holder or non polar molecules can combine. So let's know that soaps can clean things, or essentially, they work by having one polar end and one non polar end. So we have to keep that in mind when we're talking about this problem. This is the soap that were given were given a sodium compound, and this is what our structure will look like. We'll have CH three and 16 groups of CH two bound to a carbon that is, has a double bond within another oxygen. It is also bound to a negatively charged oxygen to a positively charged sodium. What's important to note here. Notice how this side has charges while this side is not now we need to do is figure out which side is polar and which one isn't. So what we can deduce is remember, we're dealing with how this soap combines with water. Water does have a polar and non polar end, and they're called hydrophobic and hydro Philip. This side of our soap is what we call hydrophobic, so it's repelled by water, meaning that this side is not polar. Now this side with the with the charges is what we call a hydro filic end. This is the part that attaches toe water. So this part of our soap is what we call polar now. From here we understand how this soap works. So Greece is non polar and water is polar. So what happens is is that the soap mixes with the water so our polar end can combine with hydro filic end and Greece basically just gets stuck on the other side of the soap. And what happens is, is that because the polar so molecules and the polar polar water are combining this Greek Greece gets trapped and also gets washed away by our sodium soap compounds.


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