정답이 있는 간호학 입학 시험 대비 화학 학습지

무료 인쇄용 간호학 입학 시험 대비 화학 학습지: 쉬운 문제부터 시험 수준까지 8문제, 정답표 포함. 인쇄하거나 PDF로 저장하세요.

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1.쉬움

According to the Arrhenius definition, what does an acid produce in water?

  1. AHydroxide ions (OH⁻)
  2. BOxide ions (O²⁻)
  3. CHydrogen ions (H⁺)
  4. DSodium ions (Na⁺)
2.쉬움

What are the units of molarity?

  1. AMoles of solute per litre of solution (mol/L)
  2. BGrams of solute per litre of solution (g/L)
  3. CMoles of solute per kilogram of the solvent used
  4. DGrams of solute per 100 g of solution
3.쉬움

What is a horizontal row of the periodic table called?

  1. AA group
  2. BA period
  3. CA family
  4. DA block
4.보통

What are isomers?

  1. AAtoms of the same element with different numbers of neutrons
  2. BCompounds with the same structure but different molecular formulas
  3. CMolecules that contain the same number of bonds
  4. DCompounds with the same molecular formula but different structures
5.보통

Nitrogen is in group 15 of the periodic table. How many valence electrons does a nitrogen atom have?

  1. A15
  2. B7
  3. C3
  4. D5
6.보통

Why does stirring help a solid dissolve faster?

  1. AIt brings fresh solvent into contact with the solid's surface
  2. BIt turns the solid into a liquid
  3. CIt raises the temperature of the solvent by friction a great deal
  4. DIt increases the amount of solute that can dissolve in total
7.어려움

A solution of acetic acid conducts electricity only weakly, while hydrochloric acid of the same concentration conducts strongly. Why?

  1. AAcetic acid does not dissolve in water at all
  2. BAcetic acid forms more ions than hydrochloric acid does
  3. CAcetic acid only partly ionises, so it forms fewer ions
  4. DHydrochloric acid contains metal atoms
8.어려움

Raising the temperature by 10 °C can roughly double the rate of many reactions. What is the main reason?

  1. AThe reaction becomes more exothermic
  2. BThe particles become larger and easier to hit
  3. CMany more collisions have at least the activation energy
  4. DThe activation energy itself is lowered by the extra heat

정답표

  1. 1. C · Hydrogen ions (H⁺)
  2. 2. A · Moles of solute per litre of solution (mol/L)
  3. 3. B · A period
  4. 4. D · Compounds with the same molecular formula but different structures
  5. 5. D · 5
  6. 6. A · It brings fresh solvent into contact with the solid's surface
  7. 7. C · Acetic acid only partly ionises, so it forms fewer ions
  8. 8. C · Many more collisions have at least the activation energy

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