(2023-2024)-G8-Test 4-Revision

Which of the following pH numbers indicates an acid?

• 1
• 8

• 7
• 14

Which of the following pH numbers indicate an alkali?

• 1
• 5
• 7
• 14

• Hydrogen

• Water

• Carbon dioxide

• Salt

Consider the following reaction:

HCl + KOH --> H2O + KCl

Identify the acid in the reaction above.

• HCl

• H2O

• KOH

• KCl

Consider the following reaction:

HCl + KOH --> H2O + KCl

Identify the base in the reaction above.

• HCl

• H2O

• KOH

• KCl

Which of the following would increase the rate of a chemical reaction?

• Decreasing the temperature of the reaction

• Increasing the temperature of the reaction

• Removing a catalyst

• Decreasing the concentration of the reactants

Which of the following would increase the rate of a chemical reaction?

• Removing a catalyst

• Diluting the chemicals

• Decreasing the temperature

• Adding a catalyst

HCl is a(n) _______

• neutral
• acid
• alkali
• base

KOH is a(n) ____________

• neutral
• acid
• solid
• base

AlCl3 is a(n) ____________

• neutral

• base

• acid

• salt