Download - Trik cerdas kimia sma
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Trik Cerdas
KIMIA
SMA
Rizal Pahlevi
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soal
Trik Cerdas :1.Fokus ke sebelah kiri grafik danyang paling atas yang meunjukkansenyawa denga Mr terendah tapimemilki titik didih yag tinggi.2.Ion = td. Tinggi + konduktorPolar = td. Rendah + konduktorNon polar = td. Rendah + isolator
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soal
Trik Cerdas :3.Langsung buat strukturlewisnya.4.Urutan electron tiap kulit :2-8-8-1
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soal
Trik Cerdas :
5.
2-8-6 = [s]-[s+p]-[s+p]=n=3p= = l =1
6.
Fokus pada pasangan electron yang
digunakan kedua atom dan bentuknya
sama.
-1 0 +1
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soal
Trik Cerdas :
7.3H+ =1Al 3+
8.
Langsung bandingkan mol kalsium
sulfat dengan mol air setelah massa
air diperoleh dari pengurangan mass
kalsium sulfat hidrat oleh massa
kalsium sulfat anhidrat.
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soal
Trik Cerdas :9.4:3:20,4:0,3:0,2g = n x Mr10.Elektrolit kuat = banyakgelembung + nyala lampuNon-elektrolit = tidak adagelembung + lampu padam
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soal
Trik Cerdas :11. Beku = es = salju12.Makin banyak zat terlarut = makin rendah tekanan uap
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soal
Trik cerdas :13.Fokus pada nilai yang penyimpangannya kecilantara SA/pH awal/SB.14.>Hitung molaritas garam>Langsung hitung ke :
𝑂𝐻 =𝐾𝑤𝐾𝑎
[𝐺]
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soal
Trik Cerdas :15.Adsorpsi = penyerapan suatuzat oleh suatu permukaan zatlain.16.>Hitung rata-rata volume Ba(OH)2 yang digunakan.>Langsung hitung ke rumus :
𝑉1𝑀1𝑛1 = 𝑉2𝑀2𝑛2
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soal
Trik Cerdas :
17.
Ca2+ = 2 OH-
p[OH] = - log (2 x [OH-])
pH = 14 – p[OH]
18.
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soal
Trik Cerdas :19.Protein = zat pembangun sel dan biokatalis(enzim = protein).20.Aseton = pelarut.
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soal
Trik Cerdas :21.Pertukaran anion Cl dengan kation H dinamakan reaksisubtitusi.Suatu reaksi yang ikatan rangkap reaktannya berubahmenjadi ikatan tunggal maka disebut reaksi adisi.22.Gugus aldehida + Fehling = endapan merah bata.
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soal
Trik Cerdas :23.Teflon > tetrafluoroetilena > adisi > pelapis panci.PVC > Vinil Klorida > Adisi > Plastik.24.Fehling hanya untuk aldehida.
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soal
Trik Cerdas :25.Asam benzoate = pengawet makanan.Fenol = desinfektan.26.H1 = H3 – H2
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soal
Trik Cerdas :27.Perhatikan kecocokan reaksidengan gambar grafik yagmenunjukkan reaksi eksoterm.28.Fokus ke konsentrasi pada saatsetimbang, lalu hitung :
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soal
Trik Cerdas :29.Reaksi akan bergeser ke arah kiri jika suhu dinaikkankarena proses reaksi eksoterm.30.Fokus pada larutan dengan suhu sama.