What is the change from a gas to a liquid called?
- ACondensation
- BEvaporation
- CFreezing
- DSublimation
What is the change from a gas to a liquid called?
元素の原子番号は何を表すか。
Which element makes up the largest share of the human body by mass?
At STP (0 °C and 1 atm), what volume does 1 mole of an ideal gas occupy?
A gas mixture contains nitrogen at 600 mmHg, oxygen at 150 mmHg and other gases at 10 mmHg. What is the total pressure?
What is the formula of the hydroxide ion?
5.85 g of NaCl (molar mass 58.5 g/mol) is dissolved to make 500 mL of solution. What is the molarity?
Na⁺, Mg²⁺, F⁻ and O²⁻ all have 10 electrons. Which ion is the largest?
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