(a) Interpretation:: If milk turns sour, this should be classified as a chemical change or physical change. Concept Introduction: In the physical change, the material or substance will not change its chemical identity only changes its physical state like solid into liquid or liquid into gas. For example, water changes its physical sate when ice melts into water. In the chemical change, the material or substance will change its chemical identity means there is a new substance formed by the formation heat, energy or gas. For example: hydrogen and oxygen react to form water which is a new substance.

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Answer 1

Question

Chapter 3.2, Problem 3.2SC

Interpretation Introduction

(a)

Interpretation::

If milk turns sour, this should be classified as a chemical change or physical change.

Concept Introduction:

In the physical change, the material or substance will not change its chemical identity only changes its physical state like solid into liquid or liquid into gas. For example, water changes its physical sate when ice melts into water.

In the chemical change, the material or substance will change its chemical identity means there is a new substance formed by the formation heat, energy or gas. For example: hydrogen and oxygen react to form water which is a new substance.

Interpretation Introduction

(b)

Interpretation::

If wax is melted over a flame catches fire and burns is a chemical change or physical change should be determined.

Concept Introduction:

In the physical change, the material or substance will not change its chemical identity only changes its physical state like solid into liquid or liquid into gas. For example, water changes its physical sate when ice melts into water.

In the chemical change, the material or substance will change its chemical identity means there is a new substance formed by the formation heat, energy or gas. For example: hydrogen and oxygen react to form water which is a new substance.

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ACTIVITY 3: PHYSICAL AND CHEMICAL CHANGES Classify the following as either physical change or chemical change. 1. Dry ice evaporates to CO2. 2. Fumes are produced when bleach is mixed with vinegar. 3. Teeth form plagues. 4. Gold drawn into ring. 5. A brillliant white flame is produced when magnesium burns 6. Formation of beautiful fireworks. 7. Breaking of glass. 8. Adding hot water to instant noodles.

Question 3 of 26 Heat cannot be measured directly with a device. Select the correct response: True False 3

Answer 2

Question

Chapter 3.2, Problem 3.2SC

Interpretation Introduction

(a)

Interpretation::

If milk turns sour, this should be classified as a chemical change or physical change.

Concept Introduction:

In the physical change, the material or substance will not change its chemical identity only changes its physical state like solid into liquid or liquid into gas. For example, water changes its physical sate when ice melts into water.

In the chemical change, the material or substance will change its chemical identity means there is a new substance formed by the formation heat, energy or gas. For example: hydrogen and oxygen react to form water which is a new substance.

Interpretation Introduction

(b)

Interpretation::

If wax is melted over a flame catches fire and burns is a chemical change or physical change should be determined.

Concept Introduction:

In the physical change, the material or substance will not change its chemical identity only changes its physical state like solid into liquid or liquid into gas. For example, water changes its physical sate when ice melts into water.

In the chemical change, the material or substance will change its chemical identity means there is a new substance formed by the formation heat, energy or gas. For example: hydrogen and oxygen react to form water which is a new substance.

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Answer 3

Question

Chapter 3.2, Problem 3.2SC

Interpretation Introduction

(a)

Interpretation::

If milk turns sour, this should be classified as a chemical change or physical change.

Concept Introduction:

In the physical change, the material or substance will not change its chemical identity only changes its physical state like solid into liquid or liquid into gas. For example, water changes its physical sate when ice melts into water.

In the chemical change, the material or substance will change its chemical identity means there is a new substance formed by the formation heat, energy or gas. For example: hydrogen and oxygen react to form water which is a new substance.

Interpretation Introduction

(b)

Interpretation::

If wax is melted over a flame catches fire and burns is a chemical change or physical change should be determined.

Concept Introduction:

In the physical change, the material or substance will not change its chemical identity only changes its physical state like solid into liquid or liquid into gas. For example, water changes its physical sate when ice melts into water.

In the chemical change, the material or substance will change its chemical identity means there is a new substance formed by the formation heat, energy or gas. For example: hydrogen and oxygen react to form water which is a new substance.

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Answer 4

Question

Chapter 3.2, Problem 3.2SC

Interpretation Introduction

(a)

Interpretation::

If milk turns sour, this should be classified as a chemical change or physical change.

Concept Introduction:

In the physical change, the material or substance will not change its chemical identity only changes its physical state like solid into liquid or liquid into gas. For example, water changes its physical sate when ice melts into water.

In the chemical change, the material or substance will change its chemical identity means there is a new substance formed by the formation heat, energy or gas. For example: hydrogen and oxygen react to form water which is a new substance.

Interpretation Introduction

(b)

Interpretation::

If wax is melted over a flame catches fire and burns is a chemical change or physical change should be determined.

Concept Introduction:

In the physical change, the material or substance will not change its chemical identity only changes its physical state like solid into liquid or liquid into gas. For example, water changes its physical sate when ice melts into water.

In the chemical change, the material or substance will change its chemical identity means there is a new substance formed by the formation heat, energy or gas. For example: hydrogen and oxygen react to form water which is a new substance.

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Answer 5

Chapter 3.2, Problem 3.2SC

Interpretation Introduction

(a)

Interpretation::

If milk turns sour, this should be classified as a chemical change or physical change.

Concept Introduction:

In the physical change, the material or substance will not change its chemical identity only changes its physical state like solid into liquid or liquid into gas. For example, water changes its physical sate when ice melts into water.

In the chemical change, the material or substance will change its chemical identity means there is a new substance formed by the formation heat, energy or gas. For example: hydrogen and oxygen react to form water which is a new substance.

Interpretation Introduction

(b)

Interpretation::

If wax is melted over a flame catches fire and burns is a chemical change or physical change should be determined.

Concept Introduction:

In the physical change, the material or substance will not change its chemical identity only changes its physical state like solid into liquid or liquid into gas. For example, water changes its physical sate when ice melts into water.

In the chemical change, the material or substance will change its chemical identity means there is a new substance formed by the formation heat, energy or gas. For example: hydrogen and oxygen react to form water which is a new substance.

Answer 6

Chapter 3.2, Problem 3.2SC

Interpretation Introduction

(a)

Interpretation::

If milk turns sour, this should be classified as a chemical change or physical change.

Concept Introduction:

In the physical change, the material or substance will not change its chemical identity only changes its physical state like solid into liquid or liquid into gas. For example, water changes its physical sate when ice melts into water.

In the chemical change, the material or substance will change its chemical identity means there is a new substance formed by the formation heat, energy or gas. For example: hydrogen and oxygen react to form water which is a new substance.

Answer 7

Chapter 3.2, Problem 3.2SC

Interpretation Introduction

(a)

Interpretation::

If milk turns sour, this should be classified as a chemical change or physical change.

Concept Introduction:

In the physical change, the material or substance will not change its chemical identity only changes its physical state like solid into liquid or liquid into gas. For example, water changes its physical sate when ice melts into water.

In the chemical change, the material or substance will change its chemical identity means there is a new substance formed by the formation heat, energy or gas. For example: hydrogen and oxygen react to form water which is a new substance.

Answer 8

Interpretation Introduction

(b)

Interpretation::

If wax is melted over a flame catches fire and burns is a chemical change or physical change should be determined.

Concept Introduction:

In the physical change, the material or substance will not change its chemical identity only changes its physical state like solid into liquid or liquid into gas. For example, water changes its physical sate when ice melts into water.

In the chemical change, the material or substance will change its chemical identity means there is a new substance formed by the formation heat, energy or gas. For example: hydrogen and oxygen react to form water which is a new substance.

Answer 9

Interpretation Introduction

(b)

Interpretation::

If wax is melted over a flame catches fire and burns is a chemical change or physical change should be determined.

Concept Introduction:

In the physical change, the material or substance will not change its chemical identity only changes its physical state like solid into liquid or liquid into gas. For example, water changes its physical sate when ice melts into water.

In the chemical change, the material or substance will change its chemical identity means there is a new substance formed by the formation heat, energy or gas. For example: hydrogen and oxygen react to form water which is a new substance.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 3.2 - Exercise 3.1 Which of the following are physical...Ch. 3.2 - Prob. 3.2SC Ch. 3.4 - Exercise 3.3 Classify each of the following as a...Ch. 3.5 - The scanning tunneling microscope allows us to...Ch. 3 - When water boils, you can see bubbles rising to...Ch. 3 - If you place a glass rod over a burning candle,...Ch. 3 - The boiling of water is a physical change because...Ch. 3 - Is there a difference between a homogeneous...Ch. 3 - Sketch a magnified view (showing atoms and/or...Ch. 3 - Are all physical changes accompanied by chemical...

Solution Summary: The author explains that if milk turns sour, this should be classified as a chemical change or physical change.

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