Question 1

Which characteristic of water makes the existence of pH possible?

Accepted Answer

A)  ionization 
B)  polarity 
C)  adhesion 
D)  cohesion 
E)  hydrophobicity 
A)  ionization 
B)  polarity 
C)  adhesion 
D)  cohesion 
E)  hydrophobicity

Question 2

The covalent bond between a hydrogen atom and the oxygen atom in water is formed when:

Accepted Answer

A)  hydrogen gains an electron from oxygen. 
B)  hydrogen and oxygen share an electron pair. 
C)  hydrogen and oxygen both lose electrons from their outer shells. 
D)  hydrogen and oxygen both gain electrons in their outer shells. 
E)  hydrogen gains an electron from oxygen 
A)  hydrogen gains an electron from oxygen. 
B)  hydrogen and oxygen share an electron pair. 
C)  hydrogen and oxygen both lose electrons from their outer shells. 
D)  hydrogen and oxygen both gain electrons in their outer shells. 
E)  hydrogen gains an electron from oxygen

Question 3

In a mixture, which would be present in the least amount?

Accepted Answer

A)  solvent 
B)  solute 
C)  water 
D)  both solvent and solute 
E)  both solvent and water 
A)  solvent 
B)  solute 
C)  water 
D)  both solvent and solute 
E)  both solvent and water

Question 4

In the formation of common table salt, sodium and chlorine interact because:

Accepted Answer

A)  sodium and chlorine share a pair of electrons. 
B)  sodium and chlorine share two pairs of electrons. 
C)  chlorine donates seven electrons to sodium. 
D)  there is no electron exchange. 
E)  sodium donates one electron to chlorine. 
A)  sodium and chlorine share a pair of electrons. 
B)  sodium and chlorine share two pairs of electrons. 
C)  chlorine donates seven electrons to sodium. 
D)  there is no electron exchange. 
E)  sodium donates one electron to chlorine.

Question 5

MATCHING
Match the type of bond or interaction with its description.
a.hydrogen bond
c.ionic bond
b.van de Waals interaction
d.covalent bond
-Holds adjacent water molecules together

Accepted Answer

The answer of MATCHING
Match the type of bond or interaction...

Exam 2: Atoms and Molecules: the Chemical Basis of Life

Which characteristic of water makes the existence of pH possible?

The covalent bond between a hydrogen atom and the oxygen atom in water is formed when:

In a mixture, which would be present in the least amount?

In the formation of common table salt, sodium and chlorine interact because:

MATCHING Match the type of bond or interaction with its description. a.hydrogen bond c.ionic bond b.van de Waals interaction d.covalent bond -Holds adjacent water molecules together

A View of Life

The Chemistry of Life: Organic Compounds

Organization of the Cell

Biological Membranes

Cell Communication

Energy and Metabolism

How Cells Make Atp: Energy-Releasing Pathways

Photosynthesis: Capturing Light Energy

Chromosomes, Mitosis, and Meiosis

The Basic Principles of Heredity

Dna: the Carrier of Genetic Information

Gene Expression

Gene Regulation

Dna Technology and Genomics

Human Genetics and the Human Genome

Developmental Genetics

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Origin and Evolutionary History of Life

The Evolution of Primates

Understanding Diversity: Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Protists

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

Sponges, Cnidarians, Ctenophores, and Protostomes

The Deuterostomes

Plant Structure, Growth, and Development

Leaf Structure and Function

Stem Structure and Transport

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function: an Introduction

Protection, Support, and Movement

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

The Immune System: Internal Defense

Gas Exchange

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Development

Animal Behavior

Introduction to Ecology: Population Ecology

Community Ecology

Ecosystems and the Biosphere

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

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