Užduočių lapas tema Chemija slaugos stojamiesiems egzaminams su atsakymais

Nemokamas spausdinamas užduočių lapas tema Chemija slaugos stojamiesiems egzaminams: 8 uždavinių nuo lengvų iki egzamino lygio, su atsakymais. Atsispausdinkite arba išsaugokite kaip PDF.

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Vardas: ____________________   Data: ____________

1.Lengvas

What is the SI unit of temperature?

  1. AJoule
  2. BDegree Fahrenheit
  3. CKelvin
  4. DDegree Celsius
2.Lengvas

Koks ryšys susidaro, kai atomai dalijasi elektronais?

  1. ABranduolinis ryšys
  2. BMetalinis ryšys
  3. CKovalentinis ryšys
  4. DJoninis ryšys
3.Lengvas

Between which kinds of elements do ionic bonds usually form?

  1. ATwo identical metals
  2. BA metal and a nonmetal
  3. CTwo noble gases
  4. DTwo nonmetals
4.Vidutinis

Kokia yra vandens molinė masė (H = 1 g/mol, O = 16 g/mol)?

  1. A32 g/mol
  2. B17 g/mol
  3. C18 g/mol
  4. D10 g/mol
5.Vidutinis

Oxygen has 8 electrons. What is its electron configuration?

  1. A1s² 2s² 2p⁶
  2. B1s² 2p⁶
  3. C1s² 2s² 2p⁴
  4. D1s² 2s⁶
6.Vidutinis

Why does water boil at a lower temperature at the top of a high mountain?

  1. AThe air is colder, so the water loses heat and boils sooner
  2. BThe air pressure is lower, so less vapour pressure is needed to boil
  3. CGravity is weaker, so the molecules escape more easily
  4. DThere is less oxygen dissolved in the water up there
7.Sunkus

Steel can be protected from rusting by coating it with zinc (galvanising). Why does the steel stay protected even if the zinc coating is scratched?

  1. AZinc turns the iron into a noble metal
  2. BZinc is more reactive than iron, so it corrodes instead of the iron
  3. CZinc is less reactive than iron, so it pushes oxygen and water away from the iron
  4. DZinc absorbs all the water from the air
8.Sunkus

Which phrase best describes a 0,001 M solution of hydrochloric acid?

  1. AA concentrated solution of a strong acid
  2. BA concentrated solution of a weak acid
  3. CA dilute solution of a weak acid
  4. DA dilute solution of a strong acid

Atsakymai

  1. 1. C · Kelvin
  2. 2. C · Kovalentinis ryšys
  3. 3. B · A metal and a nonmetal
  4. 4. C · 18 g/mol
  5. 5. C · 1s² 2s² 2p⁴
  6. 6. B · The air pressure is lower, so less vapour pressure is needed to boil
  7. 7. B · Zinc is more reactive than iron, so it corrodes instead of the iron
  8. 8. D · A dilute solution of a strong acid

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