정답이 있는 간호학 입학 시험 대비 화학 학습지

AB → A + B 반응은 어떤 종류의 반응인가요?

1. A중화 반응
2. B합성 반응
3. C이중 치환 반응
4. D분해 반응

A blown-up balloon is put in a freezer. What happens to its volume?

1. AThe balloon bursts
2. BIt stays exactly the same
3. CIt increases
4. DIt decreases

What is the half-life of a radioactive isotope?

1. AHalf the time it takes for all the atoms to decay
2. BThe time taken for the mass of a sample to double in size
3. CThe time taken for half of the radioactive atoms in a sample to decay
4. DHalf the number of protons in the nucleus

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

1. ACombustion
2. BNeutralisation
3. CHydrolysis (splitting with water)
4. DCondensation (dehydration synthesis)

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

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

온도가 높아지면 보통 물에 녹는 고체의 양은 어떻게 되나요?

1. A더 적은 고체가 녹는다
2. B고체가 기체로 변한다
3. C더 많은 고체가 녹는다
4. D고체에는 영향이 없다

How does a rise in temperature affect how much carbon dioxide gas can dissolve in a soft drink?

1. ALess gas dissolves, so warm drinks go flat faster
2. BThe gas turns into a solid at higher temperature
3. CMore gas dissolves, so warm drinks stay fizzy for longer
4. DTemperature has no effect on gas solubility

Which 1-litre solution lowers the freezing point of water the most?

1. A0.5 M NaCl
2. B1 M glucose
3. C1 M NaCl
4. D1 M CaCl₂