Werkblad Scheikunde voor toelatingsexamens verpleegkunde met antwoorden

What are the usual units of molar mass?

1. Ag/L
2. Bmol/g
3. Cg/mol
4. Dmol/L

Where are the metalloids found on the periodic table?

1. AIn the two separate rows at the bottom of the table
2. BAlong the staircase line between the metals and the nonmetals
3. CIn group 1, at the far left edge of the table
4. DIn group 18, at the far right edge of the table

Where do the mole ratios used in stoichiometry come from?

1. AThe physical states of the substances
2. BThe molar masses of the reactants
3. CThe coefficients of the balanced equation
4. DThe subscripts in each formula

Magnesium forms Mg²⁺ ions and oxygen forms O²⁻ ions. What is the formula of magnesium oxide?

1. AMgO
2. BMg₂O
3. CMg₂O₂
4. DMgO₂

Welk soort binding komt voor in een molecuul zuurstofgas, O₂?

1. AEen metaalbinding
2. BEen polaire covalente enkele binding
3. CEen ionbinding
4. DEen apolaire covalente dubbele binding

Welke coëfficiënten maken __N₂ + __H₂ → __NH₃ kloppend?

1. A2, 3, 2
2. B1, 3, 2
3. C1, 1, 1
4. D1, 3, 1

In the reaction 2Na + Cl₂ → 2NaCl, which substance is the oxidising agent?

1. ANa⁺
2. BCl₂
3. CNaCl
4. DNa

Using PV = nRT with R = 0,082 L·atm/(mol·K), how many moles of gas are in 24,6 L at 1 atm and 300 K?

1. A0,5 mol
2. B300 mol
3. C1 mol
4. D2 mol