6.1 conductivity

• Science
• Middelbare school
• vwo
• Leerjaar 3

6.1 conductivity

you will learn

• the criteria that a substance must meet in order to conduct fan electric current 
• to classify substances based on formula into : metal, salt or molecular substance  
• to classify substances based on electrical conductivity into: metal, salt or molecular substance 

recap 

pure substance : substacne contains one type of molecule 

butane 

water 

Decomposable substance : contains more than one type of atom

             
Non-decomposable : contians one type of atom 

oxygen                                sulfur S

C​4​​H​10​​

H​2​​O

H​2​​O

NaCl

O​2​​

6.1 conductivity

- Some substances can conduct electricity

- Two conditions to conduct electricity:

     - substance must consist of charged particles

     - the cahrged particles must be able to move freely

0

Conduct? Yes or no

Ja

Nee

Yes

No

foil

metal in clothespin

nail

rubber band

clothespin (wasknijper)

Conduct Yes or No ?

Yes                                                                        No
- nail                                                              - rubber band

- metal in clothespin                             - Pen

- foil                                                               - wood

Kitchensalt, name the type of atoms in this substance.

kitchen salt NaCl

metal and non-metal

conduct yes or no?

Yes	No	Yes
- nail - metal in clothespin - foil	- rubber band - Pen - wood	- salt melted and dissolved in water - Keukenzout
Metal	Molecular substances ( non-metals)	Salt ( metal and non-metal)

To answer the next question, use page 220 from your textbook

Metals

Salts

Molecular compounds

H2O

CuSn

CO2

Manganese

CuCl

C₆H₁₂O₆

sodiumbromide

homework

read par 6.1

do questions par 6.1