Oblicz, ile gramów wodorowęglanu wapnia uległo rozłożeniu, jeśli w wyniku ogrzewania 100dm3 wody, po.... Question from @Kolim007

October 2018 1 365 Report

Oblicz, ile gramów wodorowęglanu wapnia uległo rozłożeniu, jeśli w wyniku ogrzewania 100dm3 wody, powstało 38g węglanu wapnia.

Wie ktoś może jak to rozwiązać, bo coś sam nie daję rady...

Marco12

162u 100u

Ca(HCO₃)₂ --T--> CaCO₃ + H₂O + CO₂

x 38g

z proporcji wyliczam x

x = 61,56g

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Litterarum radices amarae sunt, fructus iucundiores

Pozdrawiam :)

10 votes Thanks 6

Czy maska podsieci to to samo co maska sieci ?

Answer

Kolim007 October 2018 | 0 Replies

Mógłbym prosić o sprawdzenie tego tekstu pod względem gramatycznym ? One day last summer I decided to go to the abandoned house with my friends: Daniel and Monika. We met at 9 p.m. at the front gate of this big, propably haunted house. We went through this gate and stepped into this building. It was really dark there ( the only light wast the moonlight which was lightening by the window) so we had a flashlight wit us. Suddenly, the front door just locked themselves with a loud bang. We heard something like steps coming from the second floor. We turned on our torch and started looking for the source of the sound. And then we saw it. It was something like a zombie with a long blade instead of one arm. It was limping. When it saw us it made a terrible noise which we'll never forget. We starded to run. We were looking for a way out. We could feel a strange atmosphere which was in every place in this house. Fortunately this monster wasn't so fast so it was our only advantage. A few minutes later we still couldn't find any way out. But then a stone broke the window. It came from outside. We looked by the window and sow our friend Adam who was telling us to jumped through the window. Well, it wasn't a big altitude so we didn't think about it - we just jumped out. We all felt really relieved when we had got off this building. In the end we said thanks to Adam. We didn't know why he was there, but we weren't asking about that. I think he was following us. It was a strange event which i'll never forget.

Answer

Kolim007 October 2018 | 0 Replies

Wymienione niżej obszary podziel na słabo i gęsto zaludnione. Nizina Amazonki, Kalahari, Wyżyna Patagońska, Nizina La Platy, Nizina Chińska, Alaska, Wyspy Brytyjskie, Honsiu, Półwysep Arabski

Answer

Czy maska podsieci to to samo co maska sieci ?

Wymienione niżej obszary podziel na słabo i gęsto zaludnione. Nizina Amazonki, Kalahari, Wyżyna Patagońska, Nizina La Platy, Nizina Chińska, Alaska, Wyspy Brytyjskie, Honsiu, Półwysep Arabski

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