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Menghitung Ar, Mr, dan Persamaan Reaksi

Authored by Mentari A

Chemistry

10th Grade

Used 38+ times

Menghitung Ar, Mr, dan Persamaan Reaksi
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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)   \rightarrow   NaCl (aq) + d  H2H_2   (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 +  y O2y\ O_2       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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