1.쉬움
Which state of matter has a fixed volume but takes the shape of its container?
- ASolid
- BLiquid
- CGas
- DPlasma
2.쉬움
입자들이 일정한 모양과 일정한 부피를 가지는 물질의 상태는 무엇인가요?
- A플라스마
- B액체
- C고체
- D기체
3.쉬움
균형 잡힌 화학 반응식은 무엇을 나타내나요?
- A반응의 반응물만 나타낸다
- B양쪽에 각 종류의 원자 수가 같다
- C화살표 앞뒤 양쪽의 분자 수가 같다
- D반응물보다 생성물이 더 많다
4.보통
Which measurement has three significant figures?
- A5.0006
- B56
- C0.00560
- D0.0056
5.보통
Which bond joins amino acids together in a protein?
- AAn ionic bond
- BA glycosidic bond
- CA hydrogen bond
- DA peptide bond
6.보통
Water climbs up a narrow glass tube. Which property mainly causes this?
- AEvaporation of water from the tube
- BAdhesion of water to the glass
- CLow density of water
- DWater's high boiling point
7.어려움
Why does drinking seawater make dehydration worse?
- ASeawater contains no water molecules the body can use
- BSeawater is isotonic, so it cannot be absorbed
- CSeawater is hypotonic, so water rushes into cells and makes them burst
- DSeawater is hypertonic, so the body loses extra water getting rid of the salt
8.어려움
A small amount of acid is spilled on a lab bench. Why is a weak base such as sodium bicarbonate preferred over strong NaOH to neutralise it?
- AExcess sodium bicarbonate is far less harmful than excess NaOH
- BSodium bicarbonate is a strong acid that cancels the spill
- CNaOH does not react with acids at room temperature
- DSodium bicarbonate makes the spilled acid evaporate
정답표
- 1. B · Liquid
- 2. C · 고체
- 3. B · 양쪽에 각 종류의 원자 수가 같다
- 4. C · 0.00560
- 5. D · A peptide bond
- 6. B · Adhesion of water to the glass
- 7. D · Seawater is hypertonic, so the body loses extra water getting rid of the salt
- 8. A · Excess sodium bicarbonate is far less harmful than excess NaOH
자세한 단계별 풀이: examproblems.com에서 이 주제를 연습하세요.