Practice Test Atheneum 2 - Chapter 1 Substances

• Natuurkunde / Scheikunde
• Middelbare school
• mavo
• Leerjaar 2

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Practice Test - Chapter 1  Substances

Atheneum 2

Today:

Practice Test

Testform in Lessonup

Get on your iPad to: lessonup.app

Type in the 4-digit code

How does it work?

You will get questions (on the board).

Through your iPad you'll answer.

There will be multiple choice, open questions, etc.

My name is?

1. Mr J. Post
2. Mr R. Post
3. Miss S. Post
4. Who is this guy?

Which to he following substances is pure?

1. Milk
2. Coffee
3. Gold
4. Paper

Pure substance?

Milk = mixture of water, fats, protein, lactose and salts

Coffee = solution with flavors, color an sent

Gold = good! Gold consist out of 1 type of molecules, gold.

Paper = fibers which are made of different type of molecules

Is lemonade a solution or a suspension? Explain why

Oplossing of suspensie

Solution = a fluid in which a substance resolves, like sugar.

A solution is always perfectly mixed and clear (you can see through)

Tea, cola and coffee a examples of solution.

Suspension = a liquid in which very fine powder floats.

A suspension doesn't stay mixed, the powder sinks to the bottom. Paint is an example of a suspension.

You have 3 bottles of clear liquid: alcohol, water and chloroform. Chloroform produces vapor that makes you fall asleep. With which substance property can you safely recognize the bottle with alcohol?

1. Flammability
2. Color
3. Sent/Smell
4. Taste

With which substance property can you safely recognize the bottle with alcohol?

You have 3 bottles of clear liquid: alcohol, water and chloroform.

Smell -> you will fall asleep.. not handy!

Taste -> better not taste a substance you don't know..

Color -> all three are colorless and clear

Flammability is left -> alcohol burns!

What is the formula
to calculate
Volume?

What is the formula to calculate density?

1. density=​mass​​volume​​
2. density=​volume​​mass​​
3. density=​kg​​cm​3​​​​
4. density=mass⋅volume

A block is 5 cm long, 5 cm wide, 4 cm high and weighs 220 grams. What is the density of this block?

What's the density of the block?

A block is 5 cm long, 5 cm wide, 4 cm high

Volume = length * width * height = 5 * 5 * 4 = 100 cm³

Mass = 220 gram

Density(p)= mass(m) / volume(V) = 220 / 100 = 2,2 g/cm³  =zout

Describe how to apply the immersion method:

1 mL is the same as:

1. 1dm​3​​
2. 1km​3​​
3. 1mm​3​​
4. 1cm​3​​

Wednesday 5 okt - SO

Learn objectives and pages -> see Classroom

Extra explaining and drawings

T-toets via the digital book:

Magister -> Leermiddelen -> H1 -> .7 Completion