Physical and Chemical Properties

What is a PROPERTY that is observed WITHOUT changing the identity of the substance

• Physical property

• Qualitative property

• Quantitative property

• Chemical property

Answer explanation

A physical property is observed without altering the substance's identity, such as color, melting point, or density. In contrast, chemical properties involve changes to the substance's identity, making 'physical property' the correct choice.

What is a PROPERTY that that is observed when the substance undergoes a reaction, and changes the identity of the substance

• Physical property

• Qualitative property

• Quantitative property

• Chemical property

Answer explanation

A chemical property is observed when a substance undergoes a reaction, resulting in a change in its identity. This distinguishes it from physical properties, which do not alter the substance's chemical structure.

Tags

NGSS.MS-PS1-2

What is a property that describes a substance's quality with words

• Physical property

• Qualitative property

• Quantitative property

• Chemical property

Answer explanation

A qualitative property describes a substance's quality using descriptive words, such as color, odor, and texture. In contrast, physical and chemical properties may involve measurements or changes in composition.

A property that is measured, given a number or numerical value

• Physical property

• Qualitative property

• Quantitative property

• Chemical property

Answer explanation

A quantitative property is one that can be measured and expressed with a numerical value, distinguishing it from qualitative properties, which are descriptive and not numerical.

Tags

NGSS.MS-PS3-1

Take a guess on each property definition

• Solubility

• Reaction with Sulfur

• A liquid's resistance to flow

• The temperature at which a liquid turns to gas

• A dullness of color or loss of brightness

• Viscosity

• Melting/Freezing Point

• The temperature at which a solid turns to liquid or liquid to solid

• Boiling Point

• The ability of a substance to dissolve

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Take a guess on each property definition

• Malleability

• The ability to support burning

• Conductivity

• Magnetism

• A reddish-brown flaky coating of iron oxide

• Reaction with Oxygen (rust)

• The motion of electric charge resulting in attractive and repulsive forces

• The quality of being able to be shaped into something else without breaking

• Flammability

• The ability to carry an electric current or thermal energy

Tags

NGSS.MS-PS1-2

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

• Flammability

• Reactivity with acid

• Melting point

• Ability to rust

Answer explanation

The melting point is a physical property, as it describes a characteristic of a substance without changing its chemical composition. In contrast, flammability, reactivity with acid, and ability to rust are chemical properties.

Mass, Volume, and Density are measurements. They can also be described as...

• Quantitative properties

• Qualitative properties

Answer explanation

Mass, volume, and density are measurable quantities that can be expressed numerically, making them quantitative properties. In contrast, qualitative properties describe characteristics that cannot be measured numerically.

Luster is the way light reflects off a substance. A substance's luster can be described using words like metallic, pearly, glassy or dull.

Luster is what type of property?

• Quantitative properties

• Qualitative properties

Answer explanation

Luster describes how light interacts with a substance and is characterized by terms like metallic or dull. These descriptive terms classify luster as a qualitative property, as they convey qualities rather than measurable quantities.

Which of the following is NOT a qualitative property?

• Color

• Luster

• Density

• Odor

Answer explanation

Density is a quantitative property, measuring mass per unit volume, while color, luster, and odor are qualitative properties that describe characteristics without numerical values.