Physical and Chemical Properties

Which statement describes a chemical property of silicon?

• Silicon has a blue-gray color.

• Silicon is a brittle solid at 20.°C

• Silicon melts at 1414°C.

• Silicon reacts with fluorine.

Which statement describes a chemical property of aluminum?

• Aluminum is malleable.

• Aluminum reacts with sulfuric acid.

• Aluminum conducts an electric current.

• Aluminum has a density of 2.698 g/cm³ at STP.

Which statement describes a chemical property of bromine?

• Bromine is soluble in water.

• Bromine has a reddish-brown color.

• Bromine combines with aluminum to produce AlBr₃.

• Bromine changes from a liquid to a gas at 332 K and 1 atm.

Which statement describes a chemical property of hydrogen gas?

• Hydrogen gas burns in air.

• Hydrogen gas is colorless.

• Hydrogen gas has a density of 0.000 09 g/cm³ at STP.

• Hydrogen gas has a boiling point of 20. K at standard pressure.

An example of a physical property of an element is the element’s ability to

• react with an acid

• react with oxygen

• form a compound with chlorine

• form an aqueous solution

Tags

NGSS.HS-PS1-1

Which is a chemical property of water?

• It freezes.

• It decomposes.

• It evaporates.

• It boils.

Tags

NGSS.MS-PS1-1

Which statement describes a chemical property of iron?

• Iron can be flattened.

• Iron conducts electricity.

• Iron combines with oxygen to form rust.

• Iron can be drawn into a wire.

Tags

NGSS.HS-PS1-1

Which statement describes a chemical property that can be used to distinguish between compound A and compound B?

• A is a blue solid, and B is a white solid.

• A has a high melting point, and B has a low melting point.

• A dissolves in water, and B does not dissolve in water.

• A does not burn in air, and B does burn in air.

Which property could be used to identify a compound in the laboratory?

• mass

• melting point

• temperature

• volume

Select all the terms below that describes ONLY physical properties.

• melting point

• corrosive

• ductile

• malleable

• Oxidizing