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WorksheetsХими 10 тест
Total questions: 19
Worksheet time: 12mins
Дараах урвалын аль нь мөнгөний нитрат ба зэс (II) нитрат хоорондын молийн харьцааг илэрхийлнэ.
2AgNO3 + Cu -> Cu (NO3) 2 + 2Ag
2 mol AgNO3 / 2 mol Ag
2 mol Ag / 2 mol AgNO3
2 mol AgNO3 / 2 mol Cu(NO3)2
2 mol AgNO3 / 1 mol Cu(NO3)2
6CO2 + 6H2O --> C6H12O6 + 6O2
2.5 моль C6H12O6 гарган авахад хэдэн моль ус хэрэгтэй вэ?
2.5
6
12
15
Ижил элементийн атомууд өөр өөр электронтой байвал ________.
elements
atoms
ions
isotopes
Үл мэдэгдэх уусмалд NaOH-г нэмэхэд цэнхэр өнгийн тунадас буусан. ямар ион бэ?
Fe
Fe3+
Fe2+
Cu2+
Усгүй CuSO4 дээр ус нэмэхэд ямар өнгөтэй болох вэ?
White-Blue
Pink-Blue
Blue-Pink
Blue-White
Test for sulphate ions is...
Add acid or barium chloride
Add barium chloride or barium nitrate
Add silver nitrate or barium nitrate
Add barium chloride or silver nitrate
Which factors affect the rate of a reaction?
temperature
concentration
size
pressure
catalyst
Increase in temperature causes the particles to
slow down
move faster
stay apart from each other
move in the correct order
Which factors increase the rate of a reaction?
increasing temperature
increasing concentration
increasing total surface area
All of these
Экзотерм урвал нь дулааныг.....
Шингээдэг
Ялгаруулдаг
The minimum amount of energy needed for colliding particles to react is called
Chemical Energy
Kinetic Energy
Activation Energy
Potential Energy
3H2 (g) + N2 (g) ⇌ 2NH3 (g) ΔH = −197 kJ/mol
Which of the following factors would shift the equilibrium position to the right? (Choose 2)
increase concentration of nitrogen gas
increase temperature of the equilibrium
increase pressure of the equilibrium
Presence of a catalyst
Which metal is the best conductor of electricity?
Steel
Zinc
Copper
Brass
Which metal is the best thermal insulator?
Steel
Copper
Zinc
Iron
butylethanoate
ethylbutanoate
methylbutanoate
