정답이 있는 간호학 입학 시험 대비 화학 학습지

According to the kinetic molecular theory, how do gas particles move?

1. ASlowly in fixed positions
2. BAlways in a single direction, set by the pull of gravity
3. COnly when heated, and then in neat lines between the walls
4. DConstantly, randomly and in straight lines between collisions

What should a student always wear to protect the eyes when working with chemicals?

1. AContact lenses
2. BSunglasses
3. CReading glasses
4. DSafety goggles

What is an unsaturated solution?

1. AA solution with undissolved solid at the bottom
2. BA solution with no solute at all
3. CA solution that holds the maximum possible solute
4. DA solution that can still dissolve more solute

Why does ice float on liquid water?

1. AIce is less dense than liquid water
2. BIce has a higher mass than the same volume of water
3. CIce is denser than liquid water
4. DIce contains trapped air from the freezer

온도를 높이면 보통 반응 속도는 어떻게 되나요?

1. A반응 속도가 감소한다
2. B반응 속도가 증가한다
3. C반응이 완전히 멈춘다
4. D반응 속도에 영향이 없다

Which statement describes a saturated fat?

1. AIt contains no carbon atoms
2. BIts fatty acid chains have many carbon–carbon double bonds
3. CIt is always liquid at room temperature
4. DIts fatty acid chains have no carbon–carbon double bonds

100 mL of 1 M NaCl is mixed with 100 mL of 3 M NaCl. What is the concentration of the mixture?

1. A4 M
2. B3 M
3. C2 M
4. D1.5 M

용액의 pH가 6에서 4로 변했습니다. 수소 이온 농도는 어떻게 되었나요?

1. A2배 커졌다
2. B100배 작아졌다
3. C100배 커졌다
4. D2배 작아졌다