What are these substances?
This year, we took a basic knowledge test in chemistry, and I didn't understand one of the questions. We had to match pictures of substances with the correct names. Can anyone tell me what the answers are and why?
It's about finding the right products and then balancing them. I'm not even sure about the products. I thought that AlCl3, NaCl, H2O, and CO2 might be the result, but the problem is that I can't balance this equation. There are always two too many atoms on one side, so I think the products are…
The total area is 150cm². I'm looking for the mass. I know the formula for calculating the mass, but I'm still stuck :/ Maybe you can help me 😉 Thanks in advance
Good day, Here's another question that's been on my mind. Which answer would be correct and why? I thought: the ambient temperature is higher, which is why the particles thermally expand over the boiling water. This is why, in warm weather, fewer particles press against the pot of water, allowing the particles to evaporate more…
I want to give a general lecture in chemistry to save my grade, and I'm not particularly gifted in chemistry. Do you know any topics (for 10th grade high school) that would be good for a 15-20-minute discussion, that aren't too difficult for someone with moderate ability to understand, and ideally, that also have relatively…
Salbutamol saline solution for the inhaler? Lg
Ich denke, dass oft mehrere Antworten gegeben werden müssen. Chemische Verbindungen z.B. sind alle außer A (und teilweise C).
Element-Moleküle sind in C zu sehen, ich weiß aber nicht, ob es die richtige Antwort ist, weil ja auch noch die blauen Atome vorhanden sind. Aber ansonsten sind gar keine Element-Moleküle dargestellt (so was wie H2 oder O2, also Moleküle aus gleichen Atomen.