10th Grade Chemistry Midterm Examination Questions

What does the term "malleable" mean in metals?

• Can be stretched into wires

• Can be bent and shaped

• Can conduct electricity

• Can corrode

Which state of matter has a definite volume but no definite shape?

• Solid

• Liquid

• Gas

• Plasma

Which scientist is credited with the discovery of the electron?

• Dmitri Mendeleev

• J.J. Thomson

• Ernest Rutherford

• Niels Bohr

What is the symbol for iron?

• Ir

• Fe

• I

• In

In the reaction 2H₂ + O₂ → 2H₂O, H₂ and O₂ are:

• Products

• Reactants

• Catalysts

• Compounds

Tags

NGSS.MS-PS1-5

Which of these is a physical change?

• Rusting

• Burning

• Melting

• Reacting with acid

Which element is liquid at room temperature?

• Mercury

• Sodium

• Potassium

• Calcium

What type of element is chlorine?

• Metal

• Non-metal

• Metalloid

• Noble gas

The relative atomic mass of an element is calculated based on:

• Protons only

• Electrons only

• Neutrons only

• Protons and neutrons

Which type of bond involves the transfer of electrons?

• Ionic bond

• Covalent bond

• Metallic bond

• Hydrogen bond