中2化学1学期期末範囲
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Medium
皓子 増田
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10 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
鉄と硫黄をまぜて加熱すると出来る物質の化学式は?
FeS
FeO
FeSi
Fe2S
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
硫化鉄を塩酸の中に入れると、においのある気体が発生しました。この気体の名前は?
塩化水素
塩素
硫化水素
水素
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
スチールウール(鉄)を加熱すると、酸化して酸化鉄が生成しました。酸化後の酸化鉄の様子として、正しいものをえらぼう。
電流が流れる
こするとピカピカ光る
もろく、光沢がない
たたくとうすく広がる
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
銅の酸化を化学反応式で表した。正しいものを選べ。
Cu → CuO
Cu + O → CuO
2Cu + O2 → 2CuO
Cu + O2 → CuO
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
酸化の中でも、光 や 熱を出しながら激しく反応するものを何というでしょう。
爆発
分解
化学変化
燃焼
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
酸化銅を水素と反応させると、酸化銅は__されて銅に変わる。
還元
酸化
消化
環元
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
マグネシウムと化合する酸素の質量比は?
マグネシウム:酸素 =□:□
4:1
2:3
5:1
3:2
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