
Asesmen 1 Reaction Rate
Authored by Indah Setiawati
Chemistry
11th Grade
Used 1+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pay attention to the following chemical reaction events. A chemical reaction that is classified as a fast reaction is...
1 and 2
2 and 3
2 and 4
1 and 5
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1. Batu kapur jika disiram dengan asam klorida maka akan larut dan menghasilkan gelembung gas, reaksi yang terjadi sebagai berikut:
CaCO3(s) + 2HCl(aq) --> CaCl2(aq) + H2O(l) + CO2(g)
Pada reaksi tersebut, yang merupakan reaktan adalah ….
karbondioksida
air
kalsium karbonat
kalsium klorida
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1Perhatikan grafik perubahan konsentrasi reaktan dan produk pada reaksi kimia yang berlangsung berikut!
Pernyataan yang tepat dalam menggambarkan grafik tersebut adalah ….
Pada awal reaksi konsentrasi reaktan dan produk dalam keadaan seimbang.
Pada awal reaksi konsentrasi reaktan dalam keadaan maksimum dan produknya juga demikian
Pada akhir reaksi konsentrasi reaktan berkurang sedangkan produk makin bertambah
Pada akhir reaksi konsentrasi reaktan bertambah sedangkan produknya berkurang
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1Reaksi kimia penguraian gas NO2 menjadi NO dan O2 adalah sebagai berikut:
NO2(g) --> NO(g) + O2(g) reaksi belum setara
Rumusan menentukan besarnya laju reaksi yang benar adalah ….
a
b
c
d
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the reaction experiment between aluminum metal and sulfuric acid according to the reaction equation: Al(s) + H2SO4(aq) ---> Al2(SO4)3(aq) + H2(g) are not equivalent
Hydrogen gas is collected and its volume is measured at a fixed temperature.
The comparison of the rate of reduction of aluminum metal and the formation of hydrogen gas is...
1 : 2
2 : 1
2 : 3
3 : 2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Perhatikan hasil pengamatan terhadap reaksi aluminium foil dengan larutan pembersih lantai berikut:
1 ml/menit
5 ml/menit
10 ml/menit
15 ml/menit
7.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Sebanyak 1 mol gas SO2 direaksikan dengan 1 mol gas O2 dipanaskan dalam wadah bervolume 2 liter sehingga membentuk gas SO3 menurut persamaan reaksi berikut :
SO2(g) + O2(g) ---> SO3(g) (ingat reaksi belum setara)
Jika setelah 20 detik pertama tersisa 0,8 mol gas SO2, maka laju pengurangan gas O2 adalah ….
0,05 M/detik
0,025 M/det
0,0025 M/det
0,1 M/det
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