
2年物質①
Authored by わか undefined
Science
8th Grade
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18 questions
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1.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
加熱することによって、1種類の物質が2種類以上の物質に分かれる化学変化を何というか。
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
炭酸水素ナトリウムの化学式は?
NaHCO₃
H₂O
Na₂CO₃
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
炭酸水素ナトリウムを熱分解して発生した気体は何か。
酸素
二酸化炭素
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
炭酸水素ナトリウムを熱分解すると液体が発生し、その液体にある試験紙をつけて調べた。
①試験紙の名称②発生した液体の物質名を選びなさい。
①リトマス紙,
②水
①リトマス紙
②塩酸
①塩化コバルト紙
②水
①塩化コバルト紙
②塩酸
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
酸化銀の化学式は?
Ag₂S
Ag₂O
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
水の電気分解を行うと、「 」。
陽極に水素が発生し、陰極に酸素が発生した
陽極に塩素が発生し、陰極に水素が発生した
陽極に水素が発生し、陰極に塩素が発生した
陽極に酸素が発生し、陰極に水素が発生した
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
水の電気分解で発生する気体の体積比は、
陰極:陽極=( )
1:1
2:1
3:1
4:1
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