(C.7A) Ionic compounds have high melting points because
Question 1 options:
there are no free electrons
ions cannot move out of their crystal lattice
The electronegativity difference is 0
a large amount of energy is needed to break the ionic bonds in the crystal lattice.
The correct answer is: a large amount of energy is needed to break the ionic bonds in the crystal lattice.
Lithium is a metal with an oxidation number of 1+ and oxygen is a nonmetal with an oxidation number of 2-. Which is the best explanation for why the correct chemical formula is Li2O?
Question 3 options:
Oxygen can lose two electrons to complete its valence shell. Lithium has one electron it can add to allow it to have a stable valence shell. One oxygen atom will donate one electron each to two lithium atoms.
Oxygen needs two electrons to complete its valence shell. Lithium has one electron it can donate to allow it to have a stable valence shell. One oxygen atom will take the donated electron from two lithium atoms.
Metals can only react with other metals and nonmetals can only react with other nonmetals, so the chemical formula does not exist.
The correct answer is: Oxygen can lose two electrons to complete its valence shell. Lithium has one electron it can add to allow it to have a stable valence shell. One oxygen atom will donate one electron each to two lithium atoms.
From the list below, which are characteristics of ionic compounds?
Question 5 options:
Cannot conduct electricity when dissolved in water or melted.
Electrons are transferred between atoms to form charged particles.
Electrons are shared between atoms to form a molecular bond.
Electrical conductivity when dissolved in water, or when melted.
Atoms in the compound have different electronegativity values from each other.
Atoms in the compound have similar, or the same, electronegativity values.
The correct options are:
Cannot conduct electricity when dissolved in water or melted.
Electrons are transferred between atoms to form charged particles.
Atoms in the compound have different electronegativity values from each other.
True or False: When the Gupta Empire was in control, this was known as the Golden Age of India because of such achievements in science, engineering, philosophy, art, literature, and astronomy.
Question 1 options:
a) True
b) False
a) True
Which two seafaring nations connected the Mediterranean region together in ancient times?
Question 2 options:
a)
Akkadians and Hittites
b)
Sumerians and Babylonians
c)
Phoenicians and Minoans
d)
Egyptians and Ethiopians
c) Phoenicians and Minoans
Which Ancient Mediterranean culture had developed storage for olive oil, plumbing systems and a series of frescoes?
Question 3 options:
a)
Hebrews
b)
Turks
c)
Romans
d)
Minoans
d) Minoans
Which of the following lists the correct chronological order of events?
Question 5 options:
a)
Mauryan Empire emerged
Phoenician Civilization declined
Gupta Empire emerged
Egyptian Empire declined
b)
Phoenicians become major traders in Mediterranean
Mycenae Civilization collapses
Han Dynasty collapses
Zhou Dynasty begins
c)
Zhou Dynasty is the classical age in China
Mauryan Empire is the classical age in India
Han Dynasty is the golden age in China
Gupta Empire is the golden age in India
c)
Zhou Dynasty is the classical age in China
Mauryan Empire is the classical age in India
Han Dynasty is the golden age in China
Gupta Empire is the golden age in India
Match the descriptions to their correct religion,
HINT: There will be one religion not used
Question 6 options:
This belief originated in what is now called Israel & Palestine; it said that there is only one god who is all powerful and created the world, his followers believe they have a sacred agreement (covenant) with god.
This belief originated in India and said that each person has a social duty (caste system), they must fulfill their dharma, be reincarnated and hope to attain moksha (liberation) or freedom from the cycle of reincarnation
This belief (or philosophy) means "the Way" and originated in China. It emphasizes the individual's place in nature and the universe. A person must strive to be in harmony with the "way" of the universe.
This belief (or philosophy) originated in China; it emphasizes morals, ethics and the Five Relationships. People will become good by respecting and obeying their parents, good people will create effective communities and good communities will build a strong nation – also known as Filial Piety.
This belief (or philosophy) originated in India, the Enlightened One spread his teachings of the Four Noble Truths and the Eightfold Path; show compassion to all living things and ignore the caste system.
1.
Daosim
2.
Buddhism
3.
Confucianism
4.
Sikhism
5.
Judaism
6.
Hinduism
The correct match is:
1. Judaism
2. Hinduism
3. Daosim
4. Confucianism
5. Buddhism
Under which Chinese Dynasty did these things occur?
Government tightly controlled the economy
Developed the trade network known as the Silk Road
Women had little power; unmarried women were taxed
Created items made of silk harvested from worms
Civil service was based on education and scholarships
Question 7 options:
a)
Zhou
b)
Qin
c)
Han
d)
Tang
The correct answer is: b) Qin
In the next unit you will read about the Roman Empire. Using the map and info below, infer what other items would be exchanged between Europe(Rome) and Asia because of the Silk Road.
The Silk Roads in Han-Roman Times. Goods and ideas spread across the Silk Road for centuries. This process of sharing is called cultural diffusion by historians.
Question 8 options:
a)
Written records and literature
b)
Language and food
c)
Ideas and beliefs
d)
All of the above
The correct answer is: d) All of the above.
What is the significance of the Silk Road?
Question 9 options:
a)
It led to great exchanges of art, food, language, technology and religions.
b)
It led to great wars and conflicts which killed millions of people in the 2nd century BCE.
c)
It caused Europe to become more interested in expanding their empires into China and Japan.
d)
It led to the discovery of North and South America in the 3rd century.
The correct answer is: a) It led to great exchanges of art, food, language, technology, and religions.
Which statement about the Hindu caste system in India is correct?
Question 10 options:
a)
Castes originated in Africa.
b)
Different castes were encouraged to interact with each other.
c)
Castes were used to justify who would be in the Malaysian military.
d)
People had to stay in the same caste to which they were born.
The correct answer is: d) People had to stay in the same caste to which they were born.
Which number on the map identifies the Indian Ocean – an important trade route in ancient times?
Question 11 options:
a)
1
b)
2
c)
3
d)
4
The correct answer is: c) 3
In 334 BCE, Alexander the Great defeated the Persians and took over their government. Since Persians had kings in power, they had been ruled by a _ __ .
Question 12 options:
a)
Democracy
b)
Oligarchy
c)
Monarchy
d)
Theocracy