1.やさしい
Which type of radiation is the most penetrating?
- AThey are all equally penetrating
- BAlpha particles
- CBeta particles
- DGamma rays
2.やさしい
イオンとは何か。
- A電荷をもつ原子または原子団
- B他の原子より原子核の中性子が多い原子
- C電子をもたない粒子
- D同じ原子 2 個でできた分子
3.やさしい
What is the SI unit of temperature?
- ADegree Celsius
- BJoule
- CDegree Fahrenheit
- DKelvin
4.ふつう
Rubbing alcohol evaporates faster than water at room temperature. What does this suggest?
- AIts molecules are heavier than water molecules
- BIts intermolecular forces are stronger than water's
- CIt has a higher boiling point than water
- DIts intermolecular forces are weaker than water's
5.ふつう
Which statement describes a saturated fat?
- AIt contains no carbon atoms
- BIts fatty acid chains have many carbon–carbon double bonds
- CIt is always liquid at room temperature
- DIts fatty acid chains have no carbon–carbon double bonds
6.ふつう
In the reaction Zn + Cu²⁺ → Zn²⁺ + Cu, which species loses electrons?
- AZn²⁺
- BZn
- CCu²⁺
- DCu
7.むずかしい
100 mL of 1 M NaCl is mixed with 100 mL of 3 M NaCl. What is the concentration of the mixture?
- A1.5 M
- B3 M
- C4 M
- D2 M
8.むずかしい
A catalyst is added to an exothermic reaction. How does the energy diagram change?
- AThe products end up at a lower energy, so more heat is released
- BThe reaction becomes endothermic
- CThe peak is lower, but the energy of reactants and products stays the same
- DThe reactants start at a higher energy
解答
- 1. D · Gamma rays
- 2. A · 電荷をもつ原子または原子団
- 3. D · Kelvin
- 4. D · Its intermolecular forces are weaker than water's
- 5. D · Its fatty acid chains have no carbon–carbon double bonds
- 6. B · Zn
- 7. D · 2 M
- 8. C · The peak is lower, but the energy of reactants and products stays the same
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