I gimnazjum

II gimnazjum

III gimnazjum

Chemia w zadaniach i przykładach

a)&nbsp; SnO2​+2H2​→Sn+2H2​O &nbsp; b)&nbsp; SnO2​+2C→Sn+2CO

a) MgCO3​ T<svg xmlns="http://www.w3.org/2000/svg" width='400em' height='0.522em' viewBox='0 0 400000 522' preserveAspectRatio='xMaxYMin slice'><path d='M0 241v40h399891c-47.3 35.3-84 78-110 128
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-40.5-119-75.5s-58.3-74.8-73-119.5c-4.7-14-8.3-27.3-11-40-1.3-6.7-3.2-10.8-5.5
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a)&nbsp; <ul> <li> S+O2​→SO2​ &nbsp;</li> <li> 2SO2​+O2​→2SO3​ &nbsp;</li> <li> 2S+3O2​→2SO3​ &nbsp;</li>

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