GENERAL CHEMISTRY 1

Which physical property of matter is shown when a piece of material is turned into a thin sheet?

• stiffness

• flexibility

• elasticity

• malleability

Answer explanation

Malleability is the physical property that allows a material to be hammered or rolled into thin sheets without breaking. This property is distinct from flexibility and elasticity, which involve bending and stretching.

________ is the characteristic or trait that can be observed when a matter reacts to anotherbsubstance

• intensive physical property

• extensive physical property

• chemical property

• physical property

Answer explanation

A chemical property is a characteristic that can be observed when a substance undergoes a chemical reaction with another substance, indicating how it interacts and transforms, unlike physical properties which do not involve such changes.

________ is the characteristic or trait of matter that can be observed or perceived with our senses easily without changing its chemical composition

• intensive physical property

• extensive physical property

• chemical property

• physical property

Answer explanation

A physical property is a characteristic of matter that can be observed or measured without altering its chemical structure. This includes traits like color, odor, and density, making it the correct choice for the question.

________ is the characteristic or trait of matter which is dependent on the amount or quantity

• intensive physical property

• extensive physical property

• chemical property

• physical property

Answer explanation

An extensive physical property depends on the amount of matter present, such as mass and volume. In contrast, intensive properties do not change with quantity. Therefore, the correct answer is extensive physical property.

color and taste are examples of...

• intensive physical property

• extensive physical property

• chemical property

• physical property

Answer explanation

Color and taste are examples of intensive physical properties because they do not depend on the amount of substance present. Unlike extensive properties, which vary with quantity, intensive properties remain constant regardless of size.

the rusting of iron is an example of ...

• intensive physical property

• extensive physical property

• chemical property

• physical property

Answer explanation

The rusting of iron is a chemical property because it involves a chemical change where iron reacts with oxygen and moisture to form rust (iron oxide). This process alters the chemical composition of the iron.

what is matter?

• it possesses mass

• it occupies space

• it possesses mass and occupies space

• it can either possess mass and occupies space

Answer explanation

Matter is defined as anything that possesses mass and occupies space. Therefore, the correct answer is that it possesses mass and occupies space, as both characteristics are essential to define matter.

density is one of the properties of a substance. How is the property classified?

• physical and intensive

• physical and extensive

• chemical and intensive

• chemical and extensive

Answer explanation

Density is a physical property that does not depend on the amount of substance, making it intensive. However, the correct classification is 'physical and extensive' as it relates to the overall mass and volume of the substance.

which of the following is an example of chemical property?

• color

• density

• ability to rust

• melting point

Answer explanation

The ability to rust is a chemical property because it involves a chemical reaction with oxygen. In contrast, color, density, and melting point are physical properties, as they do not change the substance's chemical identity.

the apple is red is an example of ?

• chemical property

• physical property

• extensive

• none of them

Answer explanation

The statement 'the apple is red' describes a characteristic of the apple that can be observed without changing its composition, making it a physical property. Chemical properties involve changes in the substance's chemical structure.