Uvod u kemijski račun( Mr, udjeli, množina)

Uvod u kemijski račun( Mr, udjeli, množina)

1st - 3rd Grade

11 Qs

quiz-placeholder

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Uvod u kemijski račun( Mr, udjeli, množina)

Uvod u kemijski račun( Mr, udjeli, množina)

Assessment

Quiz

Chemistry

1st - 3rd Grade

Medium

Created by

Vlatka Levanić

Used 156+ times

FREE Resource

11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Relativna molekulska masa molekule vode iznosi

18 g/mol

18

18 g

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Množina tvari može se izračunati:

 n= mMn=\ \frac{m}{M}  

 n= NaNn=\ \frac{N_a}{N}  

 n= M×mn=\ M\times m  

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Molarna masa vodikovog peroksida iznosi

17, 034 g/molu

18 g

34,016 g/molu

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Izračunaj molarnu masu fosforne kiseline

97, 994 g/molu

80,11 g/molu

50, 994 g/molu

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

U molekuli vode, H2O, je
1 atom vodika i 1 atom kisika
1 atom vodika i 2 atoma kisika
2 atoma vodika i 1 atom kisika 
2 atoma vodika i 2 atoma kisika

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Koliki je maseni udio željeza u smjesi 1 g željeza i 4 g sumpora?

80%

20%

25%

75%

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Koliki je volumni udio vode u 10 litri Fante, ako ima 8 litri vode u Fanti?

56%

44%

20%

80%

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