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H1.4 Types of mixtures ( and pH)

Types of mixtures (and pH)
Paragraaf 1.4
1 / 23
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Slide 1: Slide
ScheikundeMiddelbare schoolhavoLeerjaar 3

This lesson contains 23 slides, with interactive quizzes, text slides and 2 videos.

time-iconLesson duration is: 50 min

Items in this lesson

Types of mixtures (and pH)
Paragraaf 1.4

Slide 1 - Slide

Pure substance                      Mixture

Slide 2 - Slide

Type of mixtures
- Solution
- Suspension
- Emulsion

Slide 3 - Slide

Solution = clear

Slide 4 - Slide

Slide 5 - Video

Suspension = cloudy (turbid)

Slide 6 - Slide

Emulsion =


cloudy (turbid) mixture
of liquids

Slide 7 - Slide

blue = solution
red = emulsion
white = suspension

Slide 8 - Slide

Solution:        clear liquid, solid or liquid in solvent
        
Suspension: cloudy mixture of solid in liquid
                   
Emulsion:      cloudy mixture of two liquids
                   

Slide 9 - Slide

Emulsifier (prevents unmixing)


                                                                                    egg yolk (in mayonaise)

Slide 10 - Slide

Homogeneous or heterogeneous

Slide 11 - Slide

Slide 12 - Slide

What type of mixture is this?
A
Emulsion
B
Solution
C
Emulsifier
D
Suspension

Slide 13 - Quiz

What type of mixture is this?
A
solution
B
suspension
C
emulsion

Slide 14 - Quiz

What substance is an emulsifier?
A
Water
B
Cream
C
Soap
D
Oil

Slide 15 - Quiz

A permanent emulsion is a
mixture of ...
A
Water and salt
B
water, oil and emulsifier
C
Oil and gasoline
D
water and oil

Slide 16 - Quiz

a suspension is a ... mixture
A
heterogeneous
B
homogeneous

Slide 17 - Quiz

Acids, Bases and pH scale
Learning objective(s):
I can explain what pH value means.
I can explain what acid-, basic- and neutral solutions are.
How you can determine it.
Calculate the pH when you dilute a solution.

Slide 18 - Slide

Slide 19 - Video

Acids, Bases and pH scale
Learning objective(s):
I can explain what pH value means.
I can explain what acid-, basic- and neutral solutions are.
How you can determine it.
Calculate the pH when you dilute a solution.

Slide 20 - Slide

What does PH indicate?
A
the acidity
B
adhesion capacity
C
whether it is a liquid, solid or gas
D
the neutrality

Slide 21 - Quiz

The higher the pH, the...
A
...more acidic the solution
B
...less acidic the solution

Slide 22 - Quiz


Ammonia has a pH of 11.
Rainwater has a pH of 5.
What is true?
A
They are both sour
B
They are both basic
C
Ammonia is acidic, rainwater is basic
D
Ammonia is basic, rainwater is acidic

Slide 23 - Quiz

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