Chemistry Quiz

What is the chemical symbol for Sodium?

• Na

• S

• Sn

• N

What is the process called when a solid changes directly into a gas?

• Condensation

• Evaporation

• Sublimation

• Deposition

Which of the following is a compound?

• O2

• H2O

• Na

• He

What is the smallest unit of an element that maintains the properties of that element?

• Molecule

• Atom

• Proton

• Electron

Which element is most abundant in the Earth's crust?

• Oxygen

• Silicon

• Aluminum

• Iron

What type of bond forms when electrons are shared between atoms?

• Ionic bond

• Covalent bond

• Metallic bond

• Hydrogen bond

Which of the following is an example of a physical change?

• Rusting of iron

• Burning of wood

• Melting of ice

• Baking a cake

What is the pH value of a neutral solution?

• 1

• 7

• 14

• 0

Which gas is produced when hydrochloric acid reacts with zinc?

• Oxygen

• Hydrogen

• Carbon dioxide

• Nitrogen

What is the term for a substance that speeds up a chemical reaction without being consumed?

• Solvent

• Catalyst

• Reactant

• Product