Ch 3: Chemical Composition of Matter (Part 1)

Ch 3: Diversity of Matter and its Chemical Composition

Part 1

Multiple Choice

What is the definition of an element?

• pure substance that can be broken down into simpler substances by chemical methods.

• pure substance that cannot be broken down into simpler substances by chemical methods.

• pure substance that can be broken down into simpler substances by physical methods.

• pure substance that can be broken down into sub-atomic particles by chemical methods.

Multiple Choice

_______________ are found in the Periodic Table.

• compounds

• matter

• elements

• elements and mixtures

Multiple Choice

What element has the chemical symbol of Fe?

• Ferrium

• Iron

• Steel

• Francium

Multiple Choice

What is the chemical symbol for chlorine?

• C

• Ch

• Cl

• Cr

Multiple Choice

Which is NOT an element?

• Carbon (C)

• Nitrogen (N₂)

• Water (H₂O)

• Aluminium (Al)

Multiple Choice

Which is NOT a way to classify elements?

• metals and non-metals

• state at room temperature

• by their properties

• by their symbols

Multiple Select

Select the statement(s) that are true about the mercury.

• It is a metal.

• It is an element.

• It is a solid at room temperature.

• It is a liquid at room temperature.

• It has the symbol Mr

Multiple Select

Select the statement(s) that are true about oxygen (O₂).

• it is a gas at room temperature

• it is a non-metal

• it is an element

• it is found on the left of the "zig-zag" staircase separating metals and non-metals

Multiple Select

Which is/are true about the element Al?

• it is a metal

• it is malleable

• it is a poor conductor of heat and electricity

• it represents the element Astatine

Multiple Choice

What is the meaning of the term ductile?

• can be beaten into different shapes without breaking

• can be pulled into wires without breaking

• elastic

• shatters when dropped

Multiple Select

Which is/are true about the element sulfur?

• It has the chemical symbol S.

• it is found on the left of the "zig-zag" staircase separating metals and non-metals

• It exists as a solid at room temperature

• It is yellow in colour

Multiple Choice

What is the basic building block of all matter?

• compound

• element

• solute

• solution

Multiple Select

Salt has the chemical name sodium chloride. Select its constituent elements.

• sulfur

• sodium

• chloride

• chlorine

Multiple Select

Select all the elements.

• oxygen

• silver

• carbon dioxide

• air

Multiple Select

Select statement(s) that are true about a compound.

• Constituent elements of a compound are physically combined in a fixed proportion by mass.

• Compound has different properties as its constituent elements.

• A compound can be separated into its constituent elements by physical methods.

• made up of two or more elements chemically combined

Multiple Select

Select the statement(s) that explain why air is a mixture.

• its constituents e.g. nitrogen, water, carbon dioxide are not chemically combined with each other.

• the amount of water vapour in air varies

• it is made up of different elements and compounds mixed together.

• It is needed to support life.