Ar dan Mr

Ar dan Mr

10th Grade

10 Qs

quiz-placeholder

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Ar dan Mr

Ar dan Mr

Assessment

Quiz

Chemistry

10th Grade

Practice Problem

Hard

Created by

Rizali SMA 13

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Massa atom relatif suatu unsur adalah ....

massa rata - rata 1 atom unsur tersebut dibandingkan dengan massa rata - rata 1 atom karbon - 12

massa rata - rata 1 atom karbon - 12 dibandingkan dengan massa rata - rata 1 atom unsur tersebut

massa rata - rata 1 atom unsur tersebut dibandingkan dengan 1/12 massa rata - rata 1 atom karbon - 12

massa rata - rata 1 atom unsur tersebut dibandingkan dengan 12 kali massa rata - rata 1 atom karbon - 12

1/12 massa rata - rata 1 atom karbon - 12 dibandingkan dengan massa rata - rata 1 atom unsur tersebut

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jika massa 1 atom X = p gram , massa 1 atom C-12 = q gram, maka Ar X adalah ....

12pq\frac{12p}{q}

p12q\frac{p}{12q}

pq12\frac{pq}{12}

12pq\frac{12}{pq}

12 pq12\ pq

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jika diketahui massa atom relatif kalium ( K ) sebesar 39, massa rata - rata 1 atom K adalah ....

(39 x massa 1 atom C- 12 ) : 12

(39 x massa 1 atom C- 12)

(1/12 x massa 1 atom C-12)

(12 x 39 massa 1 atom C - 12)

39/12 x (1/12 massa 1 atom C- 12)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jika Ar Fe = 56 sma, dan massa 1 atom C –12 = 2 x 10-23 gram, maka massa 10 atom besi adalah ....

3,3 x 10 -23 gram

9,3 x 10 -23 gram

12,3 x 10 -23 gram

33 x 10 -23 gram

93 x 10 -23 gram

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jika diketahui Ar H=1, Ar C=12, Ar O=16, maka Mr dari senyawa H2CO3 adalah ....

48

54

62

68

72

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jika diketahui Ar H=1, Ar Cu =64, Ar S=32, Ar O=16, maka Mr dari senyawa CuSO4.5H2O

100

150

200

250

300

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jika diketahui Mr H2SO4 = 98, Ar O=16 dan Ar H =1, maka Ar S adalah ....

8

16

32

54

64

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