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Hukum kekekalan massa

Authored by anselmus billy

Chemistry

1st Grade

Used 16+ times

Hukum kekekalan massa
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2 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dalam wadah tertutup 4 gram logam Natrium dibakar dengan oksigen menghasilkan natrium oksida, jika massa natrium oksida yang dihasilkan adalah 5,6 gram, berapakah massa oksigen yang dibutuhkan ?

1,6 gram

2 gram

1,4 gram

1,3 gram

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Pada pembakaran 1,4 gram magnesium di udara dihasilkan 5 gram oksida magnesium, berapa gram oksigen yang terpakai dalam reaksi itu ?

Solusi:

4 gram

3,6 gram

3 gram

3,9 gram

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