Werkblad Scheikunde voor toelatingsexamens verpleegkunde met antwoorden

A blown-up balloon is put in a freezer. What happens to its volume?

1. AIt stays exactly the same
2. BIt decreases
3. CIt increases
4. DThe balloon bursts

Which element exists naturally as diatomic molecules (two atoms joined together)?

1. AOxygen
2. BIron
3. CHelium
4. DSodium

Welke groep bevat de edelgassen, zoals helium en neon?

1. AGroep 1
2. BGroep 18
3. CGroep 17
4. DGroep 2

Why can a very high fever disrupt the body's chemical reactions?

1. AHigh temperatures turn enzymes into fats
2. BHigh temperatures make every enzyme work faster without any limit
3. CHigh temperatures can change the shape of enzymes so they stop working
4. DHigh temperatures remove the water from blood

When mercury(II) oxide is heated, it reacts as 2HgO → 2Hg + O₂. What type of reaction is this?

1. ASynthesis
2. BDecomposition
3. CSingle replacement
4. DCombustion

What is the mass of 0,5 mol of NaCl (molar mass 58,5 g/mol)?

1. A0,5 g
2. B29,25 g
3. C58,5 g
4. D117 g

Een oplossing heeft een waterstofionenconcentratie van 1 × 10⁻⁹ mol/L. Wat is de pH, en is ze zuur of basisch?

1. ApH 5, zuur
2. BpH 9, basisch
3. CpH −9, zuur
4. DpH 9, zuur

Starch and cellulose are both made entirely of glucose units, yet humans can digest starch but not cellulose. Why?

1. ACellulose is really made of amino acids, not glucose, so stomach acid cannot break it
2. BStarch contains nitrogen, which makes it easier to digest
3. CCellulose dissolves in water, so it is lost from the gut
4. DThe glucose units are linked differently, and humans lack an enzyme to break cellulose's links