Use the chemical equation to complete the activity.
2Cu+S→Cu2S
Copper (Cu) reacts with sulfur (S) to form copper sulfide as shown in the equation. A scientist adds 12.7 grams of Cu to 3.2 grams of S to start the reaction. In this reaction, all of the copper and all of the sulfur react. Before running the experiment, the scientist expected the products of the reaction will be a total of 15.9 grams of copper sulfide (Cu2S). In 1–2 sentences, explain the law that the scientist used to predict that the product of the reaction would be 15.9 grams of copper sulfide.
60 answers
The scientist used the law of conservation of mass to predict that the product of the reaction would be 15.9 grams of copper sulfide. According to this law, matter cannot be created or destroyed, so the total mass of the reactants must be equal to the total mass of the products.
Where did the first civilization of India arise?
(1 point)
Responses
along the Ganges River
along the Ganges River
along the Indus and Sarasvati Rivers
along the Indus and Sarasvati Rivers
near the coast of the subcontinent
near the coast of the subcontinent
on the central plateau
(1 point)
Responses
along the Ganges River
along the Ganges River
along the Indus and Sarasvati Rivers
along the Indus and Sarasvati Rivers
near the coast of the subcontinent
near the coast of the subcontinent
on the central plateau
along the Indus and Sarasvati Rivers
What did the Indus Valley civilizations use their granaries for?
(1 point)
Responses
defense bulwarks
defense bulwarks
government offices
government offices
storing food
storing food
housing travelers
(1 point)
Responses
defense bulwarks
defense bulwarks
government offices
government offices
storing food
storing food
housing travelers
storing food
How did Chandragupta Maurya react to his fear of his enemies?
(1 point)
Responses
set up large network of spies
set up large network of spies
reached out to enemies with peace proposals
reached out to enemies with peace proposals
aggressively attacked most neighboring kingdoms
aggressively attacked most neighboring kingdoms
isolated India from all communication from outside
(1 point)
Responses
set up large network of spies
set up large network of spies
reached out to enemies with peace proposals
reached out to enemies with peace proposals
aggressively attacked most neighboring kingdoms
aggressively attacked most neighboring kingdoms
isolated India from all communication from outside
set up large network of spies
Why did multiplication and division become easier during the Gupta empire?
(1 point)
Responses
They were the first to use base-10 numbers.
They were the first to use base-10 numbers.
They were the first to understand long division.
They were the first to understand long division.
They created a numeral for zero.
They created a numeral for zero.
They combined Chinese and Greek knowledge.
(1 point)
Responses
They were the first to use base-10 numbers.
They were the first to use base-10 numbers.
They were the first to understand long division.
They were the first to understand long division.
They created a numeral for zero.
They created a numeral for zero.
They combined Chinese and Greek knowledge.
They were the first to understand long division.
What did Siddartha Gautama do after seeing old age, sickness, death, and finally a holy man in the city streets?
After seeing old age, sickness, death, and a holy man in the city streets, Siddartha Gautama decided to leave behind his life of luxury and embark on a spiritual journey in search of enlightenment.
What did Siddartha Gautama do after seeing old age, sickness, death, and finally a holy man in the city streets?
(1 point)
Responses
vowed to rule his people so that fewer would be sick and face old age and death in poverty
vowed to rule his people so that fewer would be sick and face old age and death in poverty
shut himself up in the palace and refused to travel outside again
shut himself up in the palace and refused to travel outside again
took his riches from the palace and gave them to the needy in the city
took his riches from the palace and gave them to the needy in the city
cut his hair, traded his robes, and became a religious seeker
cut his hair, traded his robes, and became a religious seeker
(1 point)
Responses
vowed to rule his people so that fewer would be sick and face old age and death in poverty
vowed to rule his people so that fewer would be sick and face old age and death in poverty
shut himself up in the palace and refused to travel outside again
shut himself up in the palace and refused to travel outside again
took his riches from the palace and gave them to the needy in the city
took his riches from the palace and gave them to the needy in the city
cut his hair, traded his robes, and became a religious seeker
cut his hair, traded his robes, and became a religious seeker
cut his hair, traded his robes, and became a religious seeker.
Why is the Bhagavad-Gita important to Hinduism?
(1 point)
Responses
It contains collected hymns that are important historically.
It contains collected hymns that are important historically.
It gives instructions on religious gatherings.
It gives instructions on religious gatherings.
It spells out the caste system.
It spells out the caste system.
It contains ideas about the gods and nature of the soul.
(1 point)
Responses
It contains collected hymns that are important historically.
It contains collected hymns that are important historically.
It gives instructions on religious gatherings.
It gives instructions on religious gatherings.
It spells out the caste system.
It spells out the caste system.
It contains ideas about the gods and nature of the soul.
It contains ideas about the gods and nature of the soul.
How did the emperor govern in the Gupta empire?
(1 point)
Responses
through giving citizens freedom and choice
through giving citizens freedom and choice
through threats and corporal punishment
through threats and corporal punishment
through keeping subjects uneducated and dependent
through keeping subjects uneducated and dependent
through enriching subjects through trade
(1 point)
Responses
through giving citizens freedom and choice
through giving citizens freedom and choice
through threats and corporal punishment
through threats and corporal punishment
through keeping subjects uneducated and dependent
through keeping subjects uneducated and dependent
through enriching subjects through trade
through enriching subjects through trade
Which of the following was a result of Asoka’s transformation after the Battle of Kalinga? Select the two correct answers.
(1 point)
Responses
increased war with neighbors
increased war with neighbors
stone pillars telling of focus on people's well-being
stone pillars telling of focus on people's well-being
Buddhism spreads
Buddhism spreads
decreased education for population
decreased education for population
loss of respect for ancestral heritage
(1 point)
Responses
increased war with neighbors
increased war with neighbors
stone pillars telling of focus on people's well-being
stone pillars telling of focus on people's well-being
Buddhism spreads
Buddhism spreads
decreased education for population
decreased education for population
loss of respect for ancestral heritage
The correct answers are:
- stone pillars telling of focus on people's well-being
- Buddhism spreads
- stone pillars telling of focus on people's well-being
- Buddhism spreads
What is moksha?
(1 point)
Responses
the caste of priests
the caste of priests
becoming one with Brahman
becoming one with Brahman
the first set of sacred hymns
the first set of sacred hymns
a teacher in Hinduism
(1 point)
Responses
the caste of priests
the caste of priests
becoming one with Brahman
becoming one with Brahman
the first set of sacred hymns
the first set of sacred hymns
a teacher in Hinduism
Moksha is the concept of becoming one with Brahman in Hinduism.
What is a main idea of Jainism?
(1 point)
Responses
compassion of the Buddha
compassion of the Buddha
nonviolence to all life
nonviolence to all life
silence and stillness during winter
silence and stillness during winter
knowledge is key to nirvana
(1 point)
Responses
compassion of the Buddha
compassion of the Buddha
nonviolence to all life
nonviolence to all life
silence and stillness during winter
silence and stillness during winter
knowledge is key to nirvana
A main idea of Jainism is nonviolence to all life.
Where did the Indo-Aryan kingdoms develop by 500 BCE?
(1 point)
Responses
Indus Valley
Indus Valley
Ganges Plain
Ganges Plain
southern coast of South Asia
southern coast of South Asia
Brahmaputra Plain
(1 point)
Responses
Indus Valley
Indus Valley
Ganges Plain
Ganges Plain
southern coast of South Asia
southern coast of South Asia
Brahmaputra Plain
The Indo-Aryan kingdoms developed in the Ganges Plain by 500 BCE.
Use the drop-down menu to complete the sentence.(1 point)
Many of the achievements of the ancient Indus Valley civilization was due to their advanced knowledge of
Choose
Many of the achievements of the ancient Indus Valley civilization was due to their advanced knowledge of
Choose
Many of the achievements of the ancient Indus Valley civilization were due to their advanced knowledge of urban planning, architecture, and engineering.
What physical feature separates the subcontinent of India from the rest of Asia?
(1 point)
Responses
Indian Ocean
Indian Ocean
Bay of Bengal
Bay of Bengal
Deccan Plateau
Deccan Plateau
Himalayas
(1 point)
Responses
Indian Ocean
Indian Ocean
Bay of Bengal
Bay of Bengal
Deccan Plateau
Deccan Plateau
Himalayas
Himalayas
What caused the Indus Valley civilization to disappear?
(1 point)
Responses
heavy flooding
heavy flooding
drought
drought
foreign invaders
foreign invaders
no known cause
(1 point)
Responses
heavy flooding
heavy flooding
drought
drought
foreign invaders
foreign invaders
no known cause
The cause of the disappearance of the Indus Valley civilization is believed to be foreign invaders.
Identify the participle in the following sentence: The news made us depressed.
*
news
made
depressed
us
*
news
made
depressed
us
The participle in the sentence is "depressed".
Identify the gerund in the following sentence: Swimming is something the children love to do for fun.
*
swimming
something
children
fun
*
swimming
something
children
fun
The gerund in the sentence is "swimming".
Identify whether the sentence is using active or passive voice: The coach said the mistakes made the team lose.
*
active
passive
*
active
passive
The sentence is in the active voice.
Identify the subject of the sentence: The house was cleaned for the guests.
*
house
cleaned
*
house
cleaned
The subject of the sentence is "house".
write a Informative or explanatory essay on a topic of your choosing
Title: The Importance of Renewable Energy in a Sustainable Future
Introduction:
In recent years, the topic of renewable energy has gained significant attention as societies worldwide are becoming more aware of the urgency to address climate change and reduce greenhouse gas emissions. Renewable energy sources, such as solar, wind, hydro, and geothermal power, have emerged as viable alternatives to fossil fuels. This essay aims to explore the importance of renewable energy in creating a sustainable future.
Body:
1. Environmental Impact:
Renewable energy sources have several environmental benefits that make them crucial for a sustainable future. Unlike fossil fuels, renewable energy generates little to no greenhouse gas emissions, reducing carbon footprints and combating climate change. By embracing renewable energy, we can minimize air pollution, decrease dependence on finite resources, and protect ecosystems from the devastating effects of pollution and extraction processes.
2. Energy Security:
One of the critical advantages of renewable energy lies in its potential to enhance energy security. Traditional energy sources like coal, oil, and gas are subject to geopolitical tensions, price volatility, and limited availability. By investing in renewable energy, countries can diversify their energy portfolios, reducing dependence on fossil fuel imports and mitigating risks associated with supply disruptions, price fluctuations, and political instability.
3. Economic Growth and Job Creation:
The transition to renewable energy offers immense economic opportunities. Investments in renewable energy industries drive economic growth, as they require substantial capital expenditure and create numerous job opportunities. Developing countries, in particular, can benefit from adopting renewable energy technologies, stimulating local economies, reducing energy poverty, and fostering innovation and research and development.
4. Health and Social Benefits:
Renewable energy has positive implications for public health and social well-being. Traditional energy sources, such as coal and gas, contribute to air pollution, resulting in respiratory illnesses and other health problems. In contrast, renewable energy technologies produce clean energy, reducing emissions and improving air quality. Moreover, decentralized renewable energy solutions can provide electricity to rural communities, empowering marginalized populations and promoting inclusive development.
5. Technological Advancements:
The pursuit of renewable energy fosters technological advancements and innovation. As investments and research increase, there is immense potential for improving the efficiency, affordability, and scalability of renewable energy technologies. These advancements can pave the way for breakthroughs in energy storage, grid integration, and the development of smart energy systems, revolutionizing the way we generate, distribute, and consume energy.
Conclusion:
The adoption of renewable energy is not merely a choice but a necessity for a sustainable future. By embracing renewable energy sources, we can mitigate climate change impacts, enhance energy security, foster economic growth, improve public health, and drive technological advancements. Governments, businesses, and individuals must continue to prioritize and invest in renewable energy to create a greener and more sustainable world for future generations.
Introduction:
In recent years, the topic of renewable energy has gained significant attention as societies worldwide are becoming more aware of the urgency to address climate change and reduce greenhouse gas emissions. Renewable energy sources, such as solar, wind, hydro, and geothermal power, have emerged as viable alternatives to fossil fuels. This essay aims to explore the importance of renewable energy in creating a sustainable future.
Body:
1. Environmental Impact:
Renewable energy sources have several environmental benefits that make them crucial for a sustainable future. Unlike fossil fuels, renewable energy generates little to no greenhouse gas emissions, reducing carbon footprints and combating climate change. By embracing renewable energy, we can minimize air pollution, decrease dependence on finite resources, and protect ecosystems from the devastating effects of pollution and extraction processes.
2. Energy Security:
One of the critical advantages of renewable energy lies in its potential to enhance energy security. Traditional energy sources like coal, oil, and gas are subject to geopolitical tensions, price volatility, and limited availability. By investing in renewable energy, countries can diversify their energy portfolios, reducing dependence on fossil fuel imports and mitigating risks associated with supply disruptions, price fluctuations, and political instability.
3. Economic Growth and Job Creation:
The transition to renewable energy offers immense economic opportunities. Investments in renewable energy industries drive economic growth, as they require substantial capital expenditure and create numerous job opportunities. Developing countries, in particular, can benefit from adopting renewable energy technologies, stimulating local economies, reducing energy poverty, and fostering innovation and research and development.
4. Health and Social Benefits:
Renewable energy has positive implications for public health and social well-being. Traditional energy sources, such as coal and gas, contribute to air pollution, resulting in respiratory illnesses and other health problems. In contrast, renewable energy technologies produce clean energy, reducing emissions and improving air quality. Moreover, decentralized renewable energy solutions can provide electricity to rural communities, empowering marginalized populations and promoting inclusive development.
5. Technological Advancements:
The pursuit of renewable energy fosters technological advancements and innovation. As investments and research increase, there is immense potential for improving the efficiency, affordability, and scalability of renewable energy technologies. These advancements can pave the way for breakthroughs in energy storage, grid integration, and the development of smart energy systems, revolutionizing the way we generate, distribute, and consume energy.
Conclusion:
The adoption of renewable energy is not merely a choice but a necessity for a sustainable future. By embracing renewable energy sources, we can mitigate climate change impacts, enhance energy security, foster economic growth, improve public health, and drive technological advancements. Governments, businesses, and individuals must continue to prioritize and invest in renewable energy to create a greener and more sustainable world for future generations.
Architects, like the one shown here drawing a blueprint, use art in their career to create
(1 point)
Responses
entertainment products.
entertainment products.
utilitarian products.
utilitarian products.
historical drawings.
historical drawings.
aesthetically pleasing drawings.
(1 point)
Responses
entertainment products.
entertainment products.
utilitarian products.
utilitarian products.
historical drawings.
historical drawings.
aesthetically pleasing drawings.
aesthetically pleasing drawings.
A critique of this drawing will most likely include
(1 point)
Responses
a description of the use of color in the piece.
a description of the use of color in the piece.
an analysis of the contents of the purse.
an analysis of the contents of the purse.
an interpretation of an important historical event.
an interpretation of an important historical event.
a judgment of the artist's drawing skill.
(1 point)
Responses
a description of the use of color in the piece.
a description of the use of color in the piece.
an analysis of the contents of the purse.
an analysis of the contents of the purse.
an interpretation of an important historical event.
an interpretation of an important historical event.
a judgment of the artist's drawing skill.
a judgment of the artist's drawing skill.
In which two areas would this artwork be best critiqued?
(1 point)
Responses
use of color and historical record
use of color and historical record
historical record and utilitarian use
historical record and utilitarian use
utilitarian use and skill used to create the work
utilitarian use and skill used to create the work
skill used to create the work and aesthetics
(1 point)
Responses
use of color and historical record
use of color and historical record
historical record and utilitarian use
historical record and utilitarian use
utilitarian use and skill used to create the work
utilitarian use and skill used to create the work
skill used to create the work and aesthetics
skill used to create the work and aesthetics
How is graffiti typically used as an art form?
(1 point)
Responses
Walls are painted to blend in with the surroundings.
Walls are painted to blend in with the surroundings.
History is recorded in an open minded way.
History is recorded in an open minded way.
Individuals express their social and political opinions.
Individuals express their social and political opinions.
Utilitarian art is created in two dimensions.
Utilitarian art is created in two dimensions.
(1 point)
Responses
Walls are painted to blend in with the surroundings.
Walls are painted to blend in with the surroundings.
History is recorded in an open minded way.
History is recorded in an open minded way.
Individuals express their social and political opinions.
Individuals express their social and political opinions.
Utilitarian art is created in two dimensions.
Utilitarian art is created in two dimensions.
Individuals express their social and political opinions.
The artist most likely used this piece to
(1 point)
Responses
communicate feelings.
communicate feelings.
communicate heritage.
communicate heritage.
communicate political views.
communicate political views.
communicate ideas for products.
(1 point)
Responses
communicate feelings.
communicate feelings.
communicate heritage.
communicate heritage.
communicate political views.
communicate political views.
communicate ideas for products.
communicate political views.
Which of the following would be most appropriate when critiquing this piece?
(1 point)
Responses
Describe the artist’s use of oil pastels to create warm colors.
Describe the artist’s use of oil pastels to create warm colors.
Analyze the realistic portrayal of an object.
Analyze the realistic portrayal of an object.
Interpret the historical meaning of the piece.
Interpret the historical meaning of the piece.
Judge the creative expression of the piece.
Judge the creative expression of the piece.
(1 point)
Responses
Describe the artist’s use of oil pastels to create warm colors.
Describe the artist’s use of oil pastels to create warm colors.
Analyze the realistic portrayal of an object.
Analyze the realistic portrayal of an object.
Interpret the historical meaning of the piece.
Interpret the historical meaning of the piece.
Judge the creative expression of the piece.
Judge the creative expression of the piece.
Describe the artist’s use of oil pastels to create warm colors.
Which of the following is NOT a cause of mental or emotional illness?
(1 point)
Responses
physical factors
physical factors
heredity
heredity
values
values
early experiences
(1 point)
Responses
physical factors
physical factors
heredity
heredity
values
values
early experiences
Values
True or False:
Mood disorders and personality disorders often make it difficult for a person to get along with others.
(1 point)
Responses
true
true
false
Mood disorders and personality disorders often make it difficult for a person to get along with others.
(1 point)
Responses
true
true
false
True
True or False:
Mental or emotional problems may cause physical problems.
(1 point)
Responses
true
true
false
Mental or emotional problems may cause physical problems.
(1 point)
Responses
true
true
false
True
What are the Vedas?
(1 point)
Responses
a language written in Sanskrit
a language written in Sanskrit
sacred hymns
sacred hymns
priests who recited offerings
priests who recited offerings
the number system of the Indo-Aryans
(1 point)
Responses
a language written in Sanskrit
a language written in Sanskrit
sacred hymns
sacred hymns
priests who recited offerings
priests who recited offerings
the number system of the Indo-Aryans
1 answer