Menghitung Ar, Mr, dan Persamaan Reaksi
Quiz
•
Chemistry
•
10th Grade
•
Medium
Mentari A
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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Harga a, b, c, d agar reaksi di bawah setara adalah…
a Na (s) + b HCl (aq) NaCl (aq) + d (g)
2-2-2-1
2-1-2-2
1-2-2-2
1-2-2-1
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Agar reaksi berikut setara maka nilai x, y dan z adalah...
x C + → z CO
1, 1, 2
2, 1, 2
2, 1, 1
2, 2, 1
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Bila diketahui Ar H=1, P=31, O=16. Hitunglah Mr senyawa H3PO4
91
81
98
97
100
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui Ar Ca=40, O=16, H=1. Hitunglah Mr senyawa Ca(OH)2
57
74
73
50
65
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Massa rumus relatif senyawa X₂(SO₄)₃ adalah 342. Jika Ar O = 16 dan S = 32, maka Ar unsur X adalah ....
64
54
32
27
14
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Massa molekul relatif (Mr) untuk senyawa K₄Fe(CN)₆ jika diketahui massa atom relatif (Ar) K = 39, Fe = 56, C=12, dan N = 14 adalah....
368
213
304
310
474
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui Ar Mg=24, O=16, H=1, C=12. Hitunglah Mr senyawa Mg(HCO3)2
57
100
128
146
158
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