англ 50-100
Authored by Aruzhan Marhabaeva
English
University
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50 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
50) Specify the basic salt
CaOHS
CaS
CaSo4
CaHPO4
CaO
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
51) How many lanthanides is available in D.I. Mendeleyev’stable?
14
104
14
22
85
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
52) Specify a unit of measure of quantity of substance
mole
kg
g/mole
g
mole/l
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
53) How many atoms three nitrogen molecules
6
4
2
3
1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
54) Calculate the molar weight of hydroxide of ammonium
35
29
30
15
28
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
55) Specify the formula of nitrate of ammonium
NH4NO3
NH3OH
NH4NO2
NH3
NH4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
56) Finish the equation and specify substance – х: Ba(OH)2 + H2SO4x +H2O
BaSO4
BaSO3
BaS
Ba2SO4
Ba(SO4)2
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