Химия для вступительных экзаменов на сестринские программы: лист заданий с ответами

Бесплатный лист заданий для печати по теме «Химия для вступительных экзаменов на сестринские программы»: 8 задач от простых до экзаменационного уровня, с ответами. Распечатайте его или сохраните как PDF.

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1.Лёгкая

What is the SI unit of pressure?

  1. ANewton (N)
  2. BPascal (Pa)
  3. CJoule (J)
  4. DLitre (L)
2.Лёгкая

What is a single covalent bond?

  1. AOne electron transferred from one atom to another
  2. BThe attraction between two oppositely charged ions
  3. CTwo pairs of electrons shared between two atoms
  4. DOne pair of electrons shared between two atoms
3.Лёгкая

What is a molecule?

  1. ATwo or more atoms held together by covalent bonds
  2. BA mixture of two different elements
  3. CThe nucleus of an atom
  4. DA single atom with a positive charge
4.Средняя

A reaction is at equilibrium. More of one reactant is added. According to Le Chatelier's principle, what happens?

  1. ANothing changes
  2. BThe reaction stops completely
  3. CThe equilibrium shifts toward the products
  4. DThe equilibrium shifts toward the reactants
5.Средняя

When two monomers join to form a larger molecule and a water molecule is released, what is the reaction called?

  1. ACondensation (dehydration synthesis)
  2. BHydrolysis (splitting with water)
  3. CNeutralisation
  4. DCombustion
6.Средняя

A student tests how temperature affects the rate of a reaction. What is the independent variable?

  1. AThe temperature
  2. BThe reaction rate
  3. CThe volume of acid, which is kept the same
  4. DThe type of beaker used
7.Сложная

What is the percentage by mass of nitrogen in ammonium nitrate, NH₄NO₃ (N = 14, H = 1, O = 16; molar mass 80 g/mol)?

  1. A17,5%
  2. B28%
  3. C35%
  4. D60%
8.Сложная

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

Ответы

  1. 1. B · Pascal (Pa)
  2. 2. D · One pair of electrons shared between two atoms
  3. 3. A · Two or more atoms held together by covalent bonds
  4. 4. C · The equilibrium shifts toward the products
  5. 5. A · Condensation (dehydration synthesis)
  6. 6. A · The temperature
  7. 7. C · 35%
  8. 8. D · A dilute solution of a strong acid

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