Werkblad Scheikunde voor toelatingsexamens verpleegkunde met antwoorden

Between which kinds of elements do ionic bonds usually form?

1. AA metal and a nonmetal
2. BTwo nonmetals
3. CTwo identical metals
4. DTwo noble gases

What kind of carbon–carbon bonds do alkanes contain?

1. AIonic bonds
2. BAt least one double bond
3. COnly single bonds
4. DAt least one triple bond

Plants absorb energy from sunlight during photosynthesis. How is photosynthesis classified?

1. ANuclear
2. BEndothermic
3. CNeutralisation
4. DExothermic

When diluting a concentrated acid, which method is safe?

1. AAdd the acid slowly to the water
2. BAdd the water slowly to the acid
3. CAdd the water quickly to the acid
4. DMix them in any order, as long as it is fast

Drops of water form on the outside of a glass of ice water. Where does this water come from?

1. AThe ice evaporates through the glass
2. BWater vapour in the air condenses on the cold glass
3. CThe glass releases water when it gets cold
4. DWater leaks through tiny holes in the glass

Hoe beïnvloedt een hogere temperatuur gewoonlijk hoeveel van een vaste stof in water oplost?

1. ADe vaste stof verandert in een gas
2. BEr lost meer vaste stof op
3. CEr lost minder vaste stof op
4. DHet heeft geen effect op vaste stoffen

A mixture contains sand, salt and water. Which sequence separates all three?

1. ADistil first to remove the sand, then filter out the salt
2. BFilter to remove the sand, then distil the filtrate to collect water and leave salt
3. CUse a magnet to remove the salt, then filter the sand
4. DEvaporate all the water first, then filter the salt away from the dry sand

Which list puts 0,1 M solutions of HCl, acetic acid (CH₃COOH) and NaCl in order of increasing pH?

1. AHCl < CH₃COOH < NaCl
2. BCH₃COOH < HCl < NaCl
3. CHCl < NaCl < CH₃COOH
4. DNaCl < CH₃COOH < HCl