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Hukum dasar Kimia

Authored by Benny Manullang

Science

10th Grade

Hukum dasar Kimia
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31 questions

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1.

DROPDOWN QUESTION

2 mins • 2 pts

Bunyi Hukum Lavoisier adalah Massa pereaksi

​ (a)   massa​ hasil reaksi.

sama dengan

lebih kecil dari

lebih besar dari

Answer explanation

Bunyi Hukum Lavoisier menyatakan bahwa massa pereaksi sama dengan massa hasil reaksi, jadi jawabannya adalah 'sama dengan'.

2.

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

Jika 14 g gas nitrogen bereaksi dengan gas hidrogen menghasilkan 17 g gas amonia, jumlah gas hidrogen yang bereaksi adalah…

34

5

3

31

28

Answer explanation

Gas nitrogen (14 g) reacts with hydrogen to produce ammonia (17 g), indicating 3 g of hydrogen reacted (17 g - 14 g = 3 g). Therefore, the correct answer is 3.

3.

FILL IN THE BLANK QUESTION

30 sec • 2 pts

Dalam suatu senyawa perbandingan massa unsur-unsur selalu tetap merupakan bunyi hukum?

4.

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

Perbandingan massa karbon dan oksigen dalam karbon monoksida adalah 3: 4 . jika 9 gram karbon direaksikan dengan 16 gram oksigen maka setelah reaksi adalah....

Tersisa oksigen 7 gram dan terbentuk karbon monoksida 18 gram

Tersisa oksigen 4 gram dan terbentuk karbon monoksida 21 gram

Hanya terdapat 21 gram karbonmonoksida

Hanya terdapat 25 gram karbonmonoksida

Tersisa karbon 4 gram dan terbentuk karbon monoksida 21 gram

Answer explanation

Hanya terdapat 25 gram karbonmonoksida

5.

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

JIka massa karbon 4,6 gram dan massa gas oksigen 3,4 gram , maka massa karbon dioksida adalah

8 gram

6 gram

1,2 gram

0,8 gram

Answer explanation

To find the total mass of carbon dioxide, add the masses of carbon and oxygen: 4.6g + 3.4g = 8g. Therefore, the mass of carbon dioxide is 8 grams.

6.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Pada temperatur dan tekanan yang sama,volume suatu gas sebanding dengan jumlah mol gas yang terdapat didalamnya,hipotesis tersebut dikemukakan oleh....

Proust

Boyle

Avogadro

Lavoisier

Dalton

Answer explanation

Avogadro's hypothesis states that at the same temperature and pressure, the volume of a gas is directly proportional to the number of moles of gas present.

7.

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

1

3

5

4

15

Answer explanation

To burn 3 liters of propane, 15 liters of oxygen at STP are needed according to the balanced chemical equation.

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