Formula Empirik CuO
Quiz
•
Chemistry
•
9th Grade
•
Practice Problem
•
Medium
OMELIA Moe
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10 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Namakan dua bahan tindakbalas yang boleh menghasilkan gas hidrogen
Zink dan asid hidroklorik cair
Kuprum Karbonat dan asid hidroklorik cair
Zink klorida dan asid hidroklorik cair
2.
MULTIPLE SELECT QUESTION
10 sec • 1 pt
Apakah maksud formula empirik?
Formula yang menunjukkan bilangan sebenar setiap jenis atom yang terdapat dalam satu molekul sebatian tertentu.
Formula yang menunjukkan nisbah paling ringkas bagi atom setiap jenis unsur dalam suatu sebatian.
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Apakah fungsi kalsium klorida kontang dalam set susunan radas berkenaan?
untuk menyerap wap air yang terdapat dalam gas hidrogen
untuk menghilangkan isipadu gas hidrogen
untuk menyingkirkan bau gas hidrogen
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Apakah warna CuO
Kelabu
Kuning
Hitam
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Persamaan kimia untuk tindakbalas yang berlaku di tiub pembakaran
Zn + 2HCl ZnCl2 + H2
CuO + H2 Cu +H2O
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Langkah berjaga-jaga sebelum memanaskan kuprum(II) oksida
gas hidrogen perlu dialirkan selama beberapa minit untuk menyingkirkan udara dalam tabung pembakaran
gas oksigen kering perlu dialirkan selama beberapa minit untuk menyingkirkan hidrogen dalam tabung pembakaran
gas hidrogen kering perlu dialirkan selama beberapa minit untuk menyingkirkan udara dalam tabung pembakaran
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Bagaimana cara menentukan eksperimen yang dilakukan telah bertindakbalas dengan lengkap
Proses pemanasan dan penimbangan diulang sehingga satu jisim tetap di perolehi.
Proses pemanasan dan penyejukan diulang sehingga satu jisim tetap di perolehi.
Proses pemanasan, penyejukan dan penimbangan diulang sehingga satu jisim tetap di perolehi.
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