Hi, I'm writing a test about this soon and I have to name homogeneous and heterogeneous mixtures in the particle model. I've been wondering how I can recognize solutions in the particle model, for example, since they can be liquid/liquid, solid/liquid, or gas/liquid. Which of these solutions is liquid/liquid, gas/liquid, or solid/liquid? Thanks in advance.
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Loading...Hi, I have a chemical question: How do I know, for example, why permanganate ions are MnO4- (I understand where manganese and oxygen come from, but unfortunately not why I need 4 oxygen and why the 1x is negatively charged) or that bromate ions are BrO3-? Or how do I know that dichromate solution (Cr2O7-)…
The pH value of an aqueous sodium acetate solution with a concentration of 4 mol L-1 is 9.68 (pKg = 9.25). To one liter of this solution, 98 g of pure (100%) sulfuric acid are added added. What is the pH value of the resulting solution? Atomic masses: S: 32 u; H: 1u; O: 16…
I'm currently studying for my chemistry exam and I need to memorize the differences and similarities between the two substances, but I don't have anything about it in my notebook and Google only shows things about the alloys. Can any of you help me?
Thank you in advance!
If you want to froth ("whip") cream, you have to have it cooled to refrigerator temperature; if it is warmer, nothing will happen. If you want to froth milk, you have to warm it to at least body temperature beforehand; if it's colder, it won't work. How can this apparent contradiction be explained?
I've been tasked with writing a fact sheet on the use of chlorine in windshields. I already have some information, but I can't seem to summarize it all. I don't even know where to start. I hope someone can help me. LG and thanks in advance
Also von diesen Abbildung ausgehend ist es schwer das zu sagen. Welche Stoffe sollen dargestellt werden?
(Gemisch – Wikipedia)
Aus deinen Abbildung wird nicht klar ob das Moleküle oder Teilchen sind.
Klar sagen kann man das anhand der Anordnung. Sobald irgendwo eine Gitterstruktur vorhanden ist oder die Teilchen sich “ohne Lücken” berühren, kannst du von einem Feststoff ausgehen. Feststoffe müssen aber keine Gitterstruktur haben. Wenn sich die Teilchen nicht berühren liegt auf jeden Fall ein Gas bzw. in deiner Aufgabenstellung ein Aerosol vor.