1.やさしい
For a given substance, in which state do its particles move fastest?
- AThey move at the same speed in all states
- BLiquid
- CGas
- DSolid
For a given substance, in which state do its particles move fastest?
地球の空気の大部分を占める気体はどれか。
固体から直接気体への変化を何と呼ぶか。
Water can act as an acid in some reactions and as a base in others. What is such a substance called?
A piece of metal has a density of 8 g/cm³ and a volume of 5 cm³. What is its mass?
How is 0.00045 written in scientific notation?
H₂ 2 mol と O₂ 2 mol を混ぜ、2H₂ + O₂ → 2H₂O のように反応させた。限定反応物はどれか。
ある試料に水の分子が 3.01 × 10²³ 個含まれる。何 mol か。
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