反応 A + B → AB は、どの種類の反応か。
- A燃焼
- B合成(化合)
- C分解
- D単置換
反応 A + B → AB は、どの種類の反応か。
食塩水は、どの種類の物質の例か。
What are the building blocks (monomers) of proteins?
Uranium-235 and uranium-238 both have 92 protons. How many more neutrons does an atom of uranium-238 have?
A reaction is at equilibrium. More of one reactant is added. According to Le Chatelier's principle, what happens?
How many lone (non-bonding) pairs of electrons are on the oxygen atom in a water molecule?
原子の数が最も多い試料はどれか。
Hydrogen peroxide fizzes when poured on a cut because an enzyme in blood breaks it down. What gas is produced, and what type of reaction is it?
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