What is a precipitate?
- AA liquid that forms when a solid melts
- BA substance that speeds up a reaction
- CA gas that bubbles out when two solutions are mixed
- DAn insoluble solid that forms when two solutions react
What is a precipitate?
水の化学式はどれか。
Charles's law describes the relationship between which two properties of a gas, at constant pressure?
Drops of water form on the outside of a glass of ice water. Where does this water come from?
A piece of metal has a density of 8 g/cm³ and a volume of 5 cm³. What is its mass?
二酸化炭素 88 g(モル質量 44 g/mol)は何 mol か。
5.85 g of NaCl (molar mass 58.5 g/mol) is dissolved to make 500 mL of solution. What is the molarity?
化学反応式 __C₃H₈ + __O₂ → __CO₂ + __H₂O を釣り合わせる。O₂ の係数はいくつか。
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