Chapter 12, Problem 101A

Interpretation Introduction

Interpretation:

The air needs to be classified as element, compound, heterogeneous or a homogenous mixture.

Concept introduction:

On the basis of composition of matter one can distinguish the given substance.

Answer to Problem 101A

Air is Homogeneous mixture when non-polluted.

Explanation of Solution

Air consists of definite composition of various gases thus is a homogeneous mixture.

Interpretation Introduction

(b)

Interpretation:

The blood needs to be classified as element, compound, heterogeneous or a homogeneous mixture.

Concept introduction:

On the basis of composition of matter one can distinguish the given substance.

Answer to Problem 101A

Blood is a heterogeneous mixture.

Explanation of Solution

As in blood, blood cells can be separated from plasma so it is a heterogeneous mixture.

Interpretation Introduction

(c)

Interpretation:

Antimony needs to be classified as element, compound, heterogeneous or a homogeneous mixture.

Concept introduction:

On the basis of composition of matter one can distinguish the given substance.

Answer to Problem 101A

Antimony is an element.

Explanation of Solution

As antimony can’t be further broke down by any chemical means so it is an element.

Interpretation Introduction

(d)

Interpretation:

Ammonia needs to be classified as either element, compound, heterogeneous or a homogeneous mixture.

Concept introduction:

On the basis of composition of matter one can distinguish the given substance.

Answer to Problem 101A

Ammonia is a compound.

Explanation of Solution

As ammonia is formed chemically by two elements nitrogen and oxygen so it is a compound.

Interpretation Introduction

(e)

Interpretation:

Mustard needs to be classified as either element, compound, heterogeneous or a homogeneous mixture.

Concept introduction:

On the basis of composition of matter one can distinguish the given substance.

Answer to Problem 101A

Mustard is a heterogeneous mixture.

Explanation of Solution

Because in mustard one can separate the parts by mechanical means so it is a heterogeneous mixture.

Interpretation Introduction

(f)

Interpretation:

Water needs to be classified as either element, compound, heterogeneous or a homogeneous mixture.

Concept introduction:

On the basis of composition of matter one can distinguish the given substance.

Answer to Problem 101A

Water is a compound.

Explanation of Solution

As water is formed chemically by two elements oxygen and hydrogen so it is a compound.