Werkblad Scheikunde voor toelatingsexamens verpleegkunde met antwoorden
Gratis printbaar werkblad Scheikunde voor toelatingsexamens verpleegkunde: 8 opgaven van makkelijk tot tentamenniveau, met antwoordenblad. Print het of sla het op als pdf.
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Naam: ____________________ Datum: ____________
1.Makkelijk
What is radioactivity?
AThe glow produced by any hot object
BThe release of heat and light when fuels burn in air
CThe release of radiation by unstable atomic nuclei
DThe flow of electrons through a metal wire
2.Makkelijk
Which method separates two liquids with different boiling points, such as alcohol and water?
ADistillation
BFiltration
CUsing a magnet
DSieving
3.Makkelijk
What is an acid–base indicator?
AA gas given off by acids
BA substance that neutralises every acid
CA substance that changes colour depending on pH
DA device that measures temperature
4.Gemiddeld
Een magnesiumatoom staat twee elektronen af. Welk ion ontstaat er?
AMg⁻
BMg²⁻
CMg⁺
DMg²⁺
5.Gemiddeld
In a reaction at equilibrium, a product is continuously removed. What happens?
AThe equilibrium shifts to the left to form more reactants
BThe reactants run out immediately
CThe reaction rate drops to zero
DMore product keeps forming as the equilibrium shifts to the right
6.Gemiddeld
How does dissolving salt in water affect the water's boiling point?
AIt lowers the boiling point slightly
BIt makes the water boil at room temperature
CIt raises the boiling point slightly
DIt has no effect on the boiling point
7.Moeilijk
A solution of a strong acid has pH 2. It is diluted with water to 10 times its original volume. What is the new pH?
A1
B20
C3
D0,2
8.Moeilijk
The true volume in a flask is 10,0 mL. A student measures it three times and gets 8,1 mL, 8,1 mL and 8,2 mL. How are these results best described?
AAccurate but not precise
BBoth accurate and precise
CPrecise but not accurate
DNeither accurate nor precise
Antwoordenblad
1. C · The release of radiation by unstable atomic nuclei
2. A · Distillation
3. C · A substance that changes colour depending on pH
4. D · Mg²⁺
5. D · More product keeps forming as the equilibrium shifts to the right
6. C · It raises the boiling point slightly
7. C · 3
8. C · Precise but not accurate
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