Year 10 Rates of Reaction Quiz

Which element has the electron configuration 2,8,8,1?

• Sodium

• Fluorine

• Neon

• Potassium

Elements in the same group of the periodic table have:

• The same number of protons

• Similar electron configurations

• The same atomic mass

• Identical properties

Which element is located in Group 17 of the periodic table?

• Fluorine

• Sodium

• Carbon

• Magnesium

How can the periodic table be used to suggest an element's properties?

• By atomic mass

• By atomic number

• By group number

• By atomic radius

What is the charge on the ion formed by oxygen?

• +1

• -1

• +2

• -2

How is the ionic formula for sodium chloride written?

• NaCl

• ClNa

• Na₂Cl

• Cl₂Na

What is the correct name for the ionic compound MgSO₄?

• Magnesium sulfide

• Magnesium sulfate

• Manganese sulfide

• Manganese sulfate

Which of the following is a balanced chemical equation?

• 2H₂ + O₂ → H₂O

• CO₂ + H₂O → C₆H₁₂O₆ + O₂

• N₂ + 3H₂ → 2NH₃

• 4Fe + 4O₂ → 2Fe₂O₃

How is the rate of a chemical reaction defined?

• It is compared to the speed of light

• The change in temperature

• The speed at which reactants are consumed or products are formed

• The colour change of the products formed

What factor can increase the rate of a chemical reaction?

• Lowering the temperature

• Increasing the concentration of reactants

• Using heavier isotopes of the reactants

• Adding an inert gas