化學方程式
Authored by 瑄翎 陳
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2nd Grade
Used 5+ times
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15 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
鹽酸加大理石➡️二氧化碳加水加氯化鈣
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Answer explanation
2HCl+CaCO3➡️CO2+H2O+CaCl2
2.
OPEN ENDED QUESTION
3 mins • 1 pt
銅在空氣中加熱
銅溶於硝酸中 再加入氫氧化鈉 變成氫氧化銅
再將氫氧化銅加熱變成氧化銅
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Answer explanation
Cu+1/2O2➡️CuO
Cu+NHO3+NaOH➡️Cu(OH)2
Cu(OH)2+1/2O2➡️CuO
3.
OPEN ENDED QUESTION
3 mins • 1 pt
兩倍的氫氣加上氧氣➡️兩個水
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OFF
Answer explanation
2H2+O2➡️2H2O
4.
OPEN ENDED QUESTION
3 mins • 1 pt
氧化鈣與二氧化碳混合後所產生碳酸鈣加二氧化碳
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OFF
Answer explanation
CaO +CO2➡️CaCO3
5.
OPEN ENDED QUESTION
3 mins • 1 pt
氫氣在空氣中燃燒➡️過氧化氫
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OFF
Answer explanation
2H2O2➡️2H2O+O2
6.
OPEN ENDED QUESTION
3 mins • 1 pt
以a粒子撞擊氮原子核
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OFF
Answer explanation
N+He➡️O+H
7.
OPEN ENDED QUESTION
3 mins • 1 pt
以a粒子撞擊鈹原子核
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OFF
Answer explanation
Be+He➡️C+n
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