Practice 4.1-4.2

• Scheikunde
• Voortgezet speciaal onderwijs
• Leerroute 3

Fill in the numbers

1. 1, 1, 1
2. 1, 3, 2
3. 1, 2, 3
4. 1, 2, 1

Fill in the numbers

1. 2, 1, 2, 1
2. 1, 2, 1, 2
3. 1, 1, 2, 2
4. 2, 2, 1, 2

1. 2, 3, 3, 1
2. 2, 2, 1, 1
3. 1, 2, 2, 3
4. 1, 3, 1, 3

Which elements consist of di-atomic molecules?

2 H2 + O2 --> 2 H2O
How many grams of H2 react with 10 g O2? H = 1 u, O = 16 u

Sodium and chlorine react to form the salt sodiumchlorine (NaCl). Give a balanced chemical equation

Methane gas (CH4) is burned using oxygen, afterwards water and CO2 are formed. Give the balanced equation.