Ðàçëîæåíèå îêñèäîâ àçîòà ãåòåðîãåííûìè âîññòàíîâèòåëÿìè
Ðåôåðàòû ïî õèìèè / Ñïîñîáû âîññòàíîâëåíèÿ îêñèäîâ àçîòà / Ðàçëîæåíèå îêñèäîâ àçîòà ãåòåðîãåííûìè âîññòàíîâèòåëÿìèÑòðàíèöà 2
4NH3 + 6NO = 5N2+ 6Í2Î
8NH3 + 6NO2 = 7N2 + 12H2O
2NH3 + 8NO = 5N2 Î+ 3H2O
Èíôîðìàöèÿ î õèìèè
Hf — Ãàôíèé
ÃÀÔÍÈÉ (ëàò. Hafnium), Hf, õèìè÷åñêèé ýëåìåíò IV ãðóïïû ïåðèîäè÷åñêîé ñèñòåìû, àòîìíûé íîìåð 72, àòîìíàÿ ìàññà 178,49. Ñâîéñòâà: ñåðåáðèñòî-áåëûé òóãîïëàâêèé ìåòàëë; ïëîòíîñòü 13,35 ã/ñì3, tïë 2230 °Ñ. Íàçâàíèå: íàçâàí îò ïî ...
Õèìèÿ êàê íàó÷íàÿ äèñöèïëèíà
Ñ 1670 ïî 1800 õèìèÿ ïîëó÷èëà îôèöèàëüíûé ñòàòóñ â ó÷åáíûõ ïëàíàõ âåäóùèõ óíèâåðñèòåòîâ íàðÿäó ñ íàòóðôèëîñîôèåé è ìåäèöèíîé.  1675 ïîÿâèëñÿ ó÷åáíèê Íèêîëÿ Ëåìåðè (1645–1715) Êóðñ õèìèè, çàâîåâàâøèé îãðîìíóþ ïîïóëÿðíîñòü, â ...
Rh — Ðîäèé
ÐÎÄÈÉ (ëàò. Rhodium), Rh, õèìè÷åñêèé ýëåìåíò VIII ãðóïïû ïåðèîäè÷åñêîé ñèñòåìû, àòîìíûé íîìåð 45, àòîìíàÿ ìàññà 102,9055, îòíîñèòñÿ ê ïëàòèíîâûì ìåòàëëàì. Ñâîéñòâà: ïëîòíîñòü 12,41 ã/ñì3, tïë 1963 °Ñ. Íàçâàíèå: îò ãðå÷åñêîãî ...
