So maybe you have a chloride anion there. The sodium chloride, the chloride anions are attracted to the Times, the hydrogen end, the oxygen end is partially negative. And this end is partially positive, we've seen this multiple But if you were to lookĪt what's happening at an atomic level, you would see that you At a macro level, itĪppears to be homogeneous. Throughout the salt water seem to be uniform. Properties, even in a lab, you would see that the properties Look at the salt water, or if you were to measure its And if you were to go to the ocean, and if you were to just Salt water has sodiumĬhloride dissolved in water. That comes to mind for me, but we'll see a lot of these in our journey throughĬhemistry is salt water. Homogeneous liquid mixture or a liquid solution, the one We will also deal with solidĪnd gas solutions as well. Now, as can imagine youĪlso have liquid solutions and in chemistry, these are the ones that Now at a micro level, you can, because there are different But it is a homogeneous mixture of metals because at a macro level, you can't really see the differences. Going on in that metal, in that alloy, what's happening is you actually But if you were to look at it with a very sensitive microscope or based on the models that we now know what is And I should probably doīronze in a more bronze color right over here. If I have some type of metal alloy, if I were to just look at it like this, if I were to look at say bronze, well, from my point of view, it has the same properties Where at the macro level it's color, how well does it conduct electricity? How malleable is it? How hard is it? It looks like the properties are uniform throughout the alloy. Solid solution would be, say a metal alloy. Think liquid immediately, but it can be solid liquid or gas. We talk about mixtures, we could be talking about There's another term for it, which you have probably heard. View, it looks consistent any point of the mixture. That when you look at it from a macro point of There's heterogeneous mixtures, the opposite would be Mixtures are different, depending on what part of
To see these clumps and depending where you are in the milk, you can actually see it with your eye, that you don't haveĬonsistent concentrations of the different substances. Of is chocolate milk that's not well mixed. Of the different things that have been mixed up. Parts of the mixtures have different concentrations Here at the extreme form is where with my naked eye, I could see that different Is referring to mixtures that if you look at itįrom a macro point of view, I'll do a heterogeneous liquid mixture. To see that prefix a lot, means different. Now there's fundamentally twoĭifferent types of mixtures. And it could be a solid,Ī liquid or a gas. If you take two or more substances and you were to mix them together, you are dealing with a mixture. If ice were denser than the liquid, the ice formed at the surface in cold weather would sink as fast as it formed.You might already be familiar with the term mixture. In fact, the ice forms a protective surface layer that insulates the rest of the water, allowing fish and other organisms to survive in the lower levels of a frozen lake or sea. Because ice is less dense than liquid water, rivers, lakes, and oceans freeze from the top down. The structure of liquid water is very similar, but in the liquid, the hydrogen bonds are continually broken and formed because of rapid molecular motion. Here are three-dimensional views of a typical local structure of water (left) and ice (right.) Notice the greater openness of the ice structure which is necessary to ensure the strongest degree of hydrogen bonding in a uniform, extended crystal lattice. \): Three-dimensional views of a typical local structure of liquid water (left) and ice (right).
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