
総復習(化学編)
Quiz
•
Science
•
8th Grade
•
Practice Problem
•
Medium
大樹 波照間
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28 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
酸化銀の色は?
白色
銀色
黒色
茶色
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
酸化銀を加熱した後に残る物質は何?
酸素
銀
銅
金
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
酸化銀が熱分解するときの化学反応式で正しいのはどれ?
2Ag2O → 4Ag + O2
Ag2O → 2Ag + O
2Ag2O → 4Ag + O
Ag2O → 2Ag + O2
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
炭酸水素ナトリウムを加熱すると発生する気体は何か?
酸素
水素
二酸化炭素
塩素
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
塩化コバルト紙は水に反応すると何色から何色に変化するか?
青から赤
赤から青
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
炭酸ナトリウムは何性か?
酸性
中性
アルカリ性
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
炭酸水素ナトリウムを熱分解したときの化学反応式
2NaHCO3 → Na2CO3 + H2O + CO2
2NaHCO3 → Na2CO3 + 2H2O + CO2
2NaHCO3 → Na2CO3 + H2O + 2CO2
2NaHCO3 → 2Na2CO3 + H2O + CO2
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