9-sinf olimpiada javoblari

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9-sinflar uchun kimyo fanidan olimpiada test javoblari 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 c c d b a c d d d c d d c b d a a 18. d= d= 19.modda konsentratsiyasining vaqtga nisbati 20. to`g`ri reaksiya tezligining teskari reaksiya tezligiga teng bo`lishi kimyoviy muvozanat deyiladi, uni siljitish yo`llari temperatura,bosim, konsentratsiya 21.na2o*cao*6sio2 22.qarama- qarshi tomonga boradigan reaksiya 23. fes2 24. 6 ta 25. 1 mol (fe3o4)________ 168 g (fe) 0.5 mol __________ x= 84 g kimyo fanidan 9-sinflar uchun yozma ish savollarining javoblari 1. 18(h2o) _____ 2 22.4 ______ 28 7.2 ______ x=0.8(h2) 4.48 ______ x=5.6(n) 5.6+0.8=6.4 12.8-6.4=6.4(o) n/h/o= javob nh4no2 2.ca3(po4)2+3h2so4=3caso4+2h3po4 196(h3po4) ______ 310(ca3(po4)2) 310 _______ 100% 195 _______ x=308.4 308,4 ______ x=99.5% javob 99.5 3.m(cu)= javob 63.54 4.caco3____cao+co2 co2+2naoh=na2co3+h2o nahco3 +hcl=nacl+h2o+co2 na2co3+h2o+ co2=2nahco3 kimyo fanidan 9-sinflar uchun laboratoriya ishi savolining javobi turli eritmalarda sulfat …

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9-sinflar uchun kimyo fanidan olimpiada test javoblari 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 c c d b a c d d d c d d c b d a a 18. d= d= 19.modda konsentratsiyasining vaqtga nisbati 20. to`g`ri reaksiya tezligining teskari reaksiya tezligiga teng bo`lishi kimyoviy muvozanat deyiladi, uni siljitish yo`llari temperatura,bosim, konsentratsiya 21.na2o*cao*6sio2 22.qarama- qarshi tomonga boradigan reaksiya 23. fes2 24. 6 ta 25. 1 mol (fe3o4)________ 168 g (fe) 0.5 mol __________ x= 84 g kimyo fanidan 9-sinflar uchun yozma ish savollarining javoblari 1. 18(h2o) _____ 2 22.4 ______ 28 7.2 ______ x=0.8(h2) 4.48 ______ x=5.6(n) 5.6+0.8=6.4 12.8-6.4=6.4(o) n/h/o= javob nh4no2 2.ca3(po4)2+3h2so4=3caso4+2h3po4 196(h3po4) ______ 310(ca3(po4)2) 310 …

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