Mavzu: modda va uning xossalari

hidini aniqlash uchun, etil spirtli chinni planshetni va glitserinli planshetni yuzdan 20 sm. dan kam bo'lmagan holatda chap qoiga olib, o'ng qo'l bilan ehtiyot bo'lgan holda yengil yelpish kerak.

Suvda eruvchanligini aniqlash uchun, etil spirtidan pipetka bilan 0,5-1 ml olib, birinchi 50 ml hajmli polipropilen stakanga ghtserindan shuncha miqdorda 2-stakanga solinadi va uning ustiga 150 ml li polipropilen stakandga suvdan 5-10 ml solinadi va shisha tayoqcha bilan aralashtiriladi. Eruvchanligi aniqlangach eritma maxsus idishga yoki rakovinaga to'kiladi. Ishlatilgan polipropilen stakan va shisha tayoqcha yuvgich bilan yuviladi.

№	Moddalar nomi	Agregat holati	Rangi	Hidi	qattiqligi	Suvda eruvchanli eruvchanligi eruvchanligi
1	Osh tuzi
2	suv
3	spirt
4	shakar
5	Ichimlik sodasi
6	Alyuminiy
7	rux
8	temir
9	mis
10	oltingugurt
11	yod

Olingan natijalar jadvalda qayd etiladi.


Nazorat uchun savollar:

1. 
   Oddiy va murakkab moddalar deb nimaga aytiladi?
   
2. 
   Moddalarning necha xil agregat holatlari mavjud?
   
3. 
   Eruvchanlik deb nimaga aytiladi?
   

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MAVZU: OKSIDLARNI TOIFALANISHI
7-Laboratoriya ishi: OSIDLARNI NAMUNALARI BILAN TANISHISH.

Maqsad: o'quvchilarni moddalarning oddiy sharoitlarda fizik xossalarini aniqlashga va tavsiflashga o'rgatish.

Jihozlar: polipropilen stakan 150 ml (1), shisha stakan (2), polipropilen stakan 50ml (3), yuvgich (4), pipetka (5), tomchi analizi uchun to'plam (6), bug'latish kosachasi (7) plastik taglik (8), shisha tayoqcha (9), plasmassa shpatel (10), tomchi analizi uchun planshe (11), elektron tarozi.
Reaktivlar: alyuminiy granulalari, mis granulalari, mis (II) sulfat, natriy xlorid (osh tuzi), saxaroza, natriy gidrokarbonat (ichimlik sodasi), etil spirti, oltingugurt kukuni. grafit, glitserin, distillangan suv.
O'quv-ko'rgazmali qo'llanmalar: «Metallar» va «Oddiy moddalar» kolleksiyasi, xavfsizlik qoidalari bo'yicha plakatlar to'plami.

Jihozlar to'plami 2 elektron tarozi

Eritmalarni tayyorlash: tomchi analizi uchun to'plamining birinchi flakonchasiga 5 ml etil spirti, ikkinchi flakonchaga 5 ml glitserin, uchinchi flakonchaga 5 ml


MAVZU: MODDALARNING XOSSALARI: FIZIK VA KIMYOVIY O'ZGARISHLAR .
2-Laboratoriya ishi: ARALASHMANI TARKIBIY QISMLARGA AJRATISH.