Hoofdstuk 1 herhaling 3HT

• Scheikunde
• Middelbare school
• havo
• Leerjaar 3

Chapter 1

Chemistry is everywhere

1.1 Properties of substance

(Stofeigenschappen)

how to describe a substance

- constants of substance

(number and unit)

 

Properties of a substance

Colour

Shape

Mass

Volume

Melting Point

Solubility

Smell

Density

Phase at room temperature

Combustibility

Poisonous

Constants of a substance

Colour

Shape

Mass

Volume

Melting Point

Solubility

Smell

Density

Phase at room temperature

Combustibility

Poisonous

1.2 Safety

Handling substances

- Hazard pictograms

- H and P-phrases

Experiments

- Gas burner

- Actions, observations, conclusion

Which flame do we use to heat up a substance?

1. Yellow flame
2. Interim flame
3. Colourless flame
4. Rustling flame

Test tube holder

Test tube stand

Wash bottle

Tripod

Gas burner

Gauze

1.3 Transition of phases

Triangle of phases

Phases (gas, liquid, solid)

Indications of the state: (s), (l), (g), (aq)

Transition of phases

Pure substance or mixture

Melting and boiling point

Melting and boiling range

Temperature in Kelvin or Celsius

Pure substance

Mixture

Melting Point

Boiling Point

Boiling Range

Melting Range

Which transition of phases is shown in the equation?
water (s) --> water (g)

1. Condensation
2. Sublimation
3. Melting
4. Evaporation