Werkblad Scheikunde voor toelatingsexamens verpleegkunde met antwoorden

What is a horizontal row of the periodic table called?

1. AA family
2. BA group
3. CA block
4. DA period

According to the kinetic molecular theory, how do gas particles move?

1. AAlways in a single direction, set by the pull of gravity
2. BSlowly in fixed positions
3. COnly when heated, and then in neat lines between the walls
4. DConstantly, randomly and in straight lines between collisions

What is plasma, as a state of matter?

1. AA solid that conducts electricity
2. BA liquid that has been cooled below its freezing point
3. CA very hot gas in which atoms have lost electrons and become ions
4. DThe liquid part of blood

Waarom reageren edelgassen zelden?

1. AZe zijn allemaal radioactief
2. BHun buitenste elektronenschillen zijn al vol
3. CHun atomen zijn veel groter dan andere atomen
4. DZe hebben helemaal geen elektronen

How does an antacid tablet relieve heartburn caused by excess stomach acid?

1. AIt turns the acid into a gas that is absorbed
2. BA weak base in it neutralises some of the acid
3. CIt coats the stomach and stops all acid production
4. DAn acid in it lowers the stomach pH further

Glucose has the molecular formula C₆H₁₂O₆. What is its empirical formula?

1. ACH₂O
2. BC₂H₄O₂
3. CCHO
4. DC₆H₁₂O₆

Element A has 1 valence electron and element B has 7 valence electrons, both in period 3. Which statement best compares them?

1. ABoth are metalloids
2. BA is a reactive metal and B is a reactive nonmetal
3. CA is a nonmetal and B is a metal
4. DBoth are unreactive because they are in the same period

What is the formula of iron(III) chloride?

1. AFe₃Cl
2. BFe₂Cl₃
3. CFeCl₃
4. DFeCl₂