This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.

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Kemia ni tawi la sayansi linalochunguza muundo, sifa, na tabia za maada, pamoja na mabadiliko yanayotokea.
Samahani kwa makosa ya awali. Nilikosea kusoma picha uliyotuma. Hii ni karatasi ya mtihani wa Kemia, na nitakusaidia kujibu maswali yaliyoonekana wazi.
MID TERM ASSIGNMENT GRADE 10 CHEMISTRY 2026
Step 1: Kufafanua neno Kemia. Kemia ni tawi la sayansi linalochunguza muundo, sifa, na tabia za maada, pamoja na mabadiliko yanayotokea wakati maada inapoingiliana.
Step 2: Kueleza kwa nini Kemia ni sayansi. Kemia inatumia mbinu za kisayansi kama vile uchunguzi, majaribio, na uchambuzi wa data ili kuelewa ulimwengu.
Step 3: Kuorodhesha taaluma zinazohusiana na Kemia. Kemia ina matumizi mengi katika nyanja mbalimbali, hivyo kuna taaluma nyingi zinazohusiana nayo.
Step 4: Kulinganisha maelezo na matawi sahihi ya Kemia. Kila tawi la Kemia lina eneo lake maalum la utafiti.
Step 5: Kujibu maswali kuhusu matumizi ya Kemia katika kilimo na uhusiano wake na sayansi nyingine. Kemia ni muhimu katika kuboresha mazao na afya ya udongo, na pia inaunganisha sayansi mbalimbali.
a) Njia tatu ambazo Kemia inatumika katika kilimo: • Katika utengenezaji wa mbolea ili kuongeza rutuba ya udongo na mavuno. • Katika utengenezaji wa viuatilifu (pesticides) na viua magugu (herbicides) kudhibiti wadudu na magugu. • Katika uchambuzi wa udongo kubaini virutubisho vilivyopo na mahitaji ya udongo.
b) Uhusiano kati ya Kemia na nyanja zingine za sayansi: • Biolojia: Kemia husaidia kuelewa michakato ya kibiolojia kama vile usanisinuru (photosynthesis) na upumuaji. • Fizikia: Kemia inatumia kanuni za fizikia kueleza tabia za maada na nishati. • Jiolojia: Kemia husaidia kuelewa muundo wa miamba na madini.
c) Kuhusu mchoro wa lebo ya dawa: (i) Maana ya neno Dosage: Dosage inamaanisha kiasi maalum cha dawa kinachopaswa kutumiwa kwa wakati mmoja au kwa muda fulani.
(ii) Faida mbili za kutumia dawa za kawaida (generic medicines): • Ni nafuu zaidi kuliko dawa za asili (brand-name drugs) kwa sababu hazihitaji gharama za utafiti na maendeleo. • Zinapatikana kwa urahisi zaidi sokoni.
(iii) Hatari moja ya kutumia dawa za kawaida (generic medicines): • Baadhi ya dawa za kawaida zinaweza kuwa na viambato visivyofanya kazi vizuri au viambato tofauti kidogo ambavyo vinaweza kuathiri ufanisi au usalama.
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This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.