Answer:
Try B. and D. and see if its right or not
Calcium carbonate can break down to form calcium oxide and carbon dioxide. CaCO3 → CaO + CO2 The oxygen atoms on the product side are not balanced because there are only two oxygen atoms in CO2 not balanced because there is only one oxygen atom in CaO. balanced because the total number of oxygen atoms is 3. balanced when a coefficient of 3 is placed in front of CO2.
Calcium carbonate can break down to form calcium oxide and carbon dioxide. The balanced chemical equation has been 3 CaCO₃ ⇒ 3 CaO + 3CO₂
What is balanced chemical equation ?The term balanced chemical equation is defined as the total number of mass of reactant is exactly equal to the total number of mass of product.
The balanced equation can be given to follow the law of conservation of mass. With equal number of atoms of all elements are present on the product and the reactant side in the reaction.
The given equation is written with addition of 3 as a coefficient to the carbon dioxide in above reaction is as follows:
CaCO₃ ⇒ CaO + 3CO₂
The number of elements of oxygen in reaction on product side has been 6 atoms for carbon dioxide and 1 oxygen atom for calcium oxide. The total oxygen on product side has been 7. The reactant has the presence of 3 oxygen atoms. So, for balancing the equation.
The reaction has been balanced with equal atoms on both the sides as follows:
3 CaCO₃ ⇒ 3 CaO + 3CO₂
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Why do you think it was significant for Christians to retake Jerusalem?
what is the height of Mount Kilimanjaro in Tanzania
Answer:
The height of Mount Kilimanjaro in Tanzania : 232,100″
What is the major religion found in Sudan?
A) 1%
B) 15%
C) 25%
D) 50%
Answer:
Muslim
Explanation:
Not so sure what the presents are for...
The majority of Sudan's population is Muslim, belonging overwhelmingly to the Sunni branch. Sunni Islam in Sudan, as in much of the rest of Africa, has been characterized by the formation of tarīqahs, or Muslim religious brotherhoods.
people are just so rude sometimes on brainly. Who agrees
Answer: shut Up
Explanation: dummy
Answer:
You're right!
Explanation:
write at least 6 countries in the South East Asia
Answer:
Brunei.
Burma (Myanmar)
Cambodia.
Timor-Leste.
Indonesia.
Laos.
Explanation:
How did people adapt to these conditions in this region to develop early civilizations?
Mesopotamia
• A plain located between two rivers
• Bordered to the north and east by mountains
• Melting snow causes annual river floods
• Seasonally overflowing rivers deposit silt
A. following animal herds to water sources
B. establishing overseas trade for food supplies
C. developing navigational skills for fishing
D.cultivating crops in rich fertile valley
C, Mesopotamia had silt that came from rivers, making their soil very fertile.
Help plssssssssssss it’s my b day
Answer:
A
Explanation:
4. Which was NOT a long term cause of the French Revolution?
a. Corrupt and inconsistent leadership
b. Taxes
c. Prosperity
d. Enlightenment
Answer:
Correct answer is c. Prosperity.
Explanation:
C is correct and logical answer because people are not starting revolutions if the country is functional and has no problem.
A is not correct because during the reign of Bourbon dynasty corruption was eating the country from the inside. Rich people were corrupted and had all the benefits, while poor people were leaving in terrible conditions.
B is not correct because taxes were too high for the members of lowest layer, the so-called bourgeoisie.
D is not correct answer, because thinker of Enlightenment were challenging the authority of the highest social classes.
what is meteor
plz tell
Answer:
a small body of matter from outer space that enters the earth's atmosphere, becoming incandescent as a result of friction and appearing as a streak of light.
Which is one way poor use of fertilizers in agriculture can affect the environment
A. It can increase the ability of many species to find suitable habitats
B. It can cause pollution of water in lakes and rivers
C. It can cause an increase in greenhouse gases
D. It can reduce the amount of sediment in the local waterways
Answer:
B. It can cause pollution of water in lakes and rivers
Explanation:
Poor use of fertilizers in Agriculture can affect the environment because they cause pollution of water in lakes and rivers.
Pollution is the introduction of filth or unwanted materials into the environment.
When fertilizers are poorly applied on farms, they can cause pollution of nearby water bodies. Rain water usually during a down pour can wash them off into surrounding water bodies. They can also even infiltrate into the ground water systems. On getting into the rivers and lakes the alter the chemical balance and lead to severe pollution. One of such is eutrophication.So, poorly applied fertilizers can cause pollution of water in lakes and rivers.
How is it to live on the ring of fire
Answer:
to live in the ring of fire is dangerous because of its full of volcano
How old is a rock with a half life of 5,280 years
if 1/8th of the parent material is left?
Answer:
A rock with a half-life of 5,280 years having 1/8th of the parent material left will be 15,840 years old.
Explanation:
The half-life of a material is the time needed for only half of the parent material to be left, while half has is gone, or rather has disintegrated. The half-life is used further into the falling apart of the parent material though, with the same principle being applied. Practically, from the 1/2 of the parent material being left, the half-life of it would mean 1/4 of the parent material being left, and from that 1/4, the half-life would be at 1/8 of the parent material being left, and so one, by simply dividing in two.
In this case, having a half-life of the rock of 5,280 years, we will simply need to add that amount of years on every next phase. So, the half-life is 5,280 when 1/ of the parent material is left. When 1/4 of the parent material will be left we will have an age of 10,560 years, while when only 1/8 is left, we will have 15,840 years of age for the rock.
What is an example of a civil service job?
pediatrician
police officer
O stockbroker
O store clerk
Among the given jobs, the example of a civil service job is police officer. A pediatrician is a doctor for children and store clerk or stoke broker are not doing any civil jobs. Hence, option B is correct.
What are civil service jobs ?All state and federal government agencies fall under the umbrella of the civil services, which also includes some of the less well-known departments of the Indian Railways, Revenue Service, Police Service, Audits, Customs, and IAS (Indian Administrative Service).
Becoming a public servant, however, does not automatically make one a civil servant. The civil service excludes public organizations like local governments, the military forces.
An employee of the civil service is essentially hired by the government to impartially implement their policies and laws. They frequently work in the public sector. Therefore, a police officer is an example of civil service job.
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explain how the earth's axis and revolution combine to create seasonal climate variations.
Answer:
All of us know that the earth is rotating continuously in its orbit. But we dont realize the rotation due to gravitational force. The earth rotates in its own axis this causes day and night . While rotating on its axis, earth also rotates around elliptical axis around the sun which causes the different regions to experience different seasons. The side facing the sun experience summer and other side experience winter.
What happens due to divergent plate movement?
A. Mountain formation
B. Volcano eruption
C. Seafloor spreading
D. Earthquakes
Spreading of the seafloor occurs along divergent plate boundaries. When tectonic plates progressively migrate apart from one another, heat produced by the mantle's convection currents causes the crust to become more flexible and thinner. Thus, option C is correct.
What is the seafloor spreading due to divergent plate?As oceanic plates diverge, tensional stress causes fractures in the lithosphere. Although there is often extensive magma activity at spreading ridges, the driving factor for seafloor spreading ridges is tectonic plate slab pull at subduction zones.
Less dense material tends to ascend, often forming mountains or elevated seafloor regions. Eventually, the crust breaks.
Oceanic crust has a propensity to subduct, or dive under, neighboring continental plates or younger segments of oceanic crust because it cools and eventually becomes denser than the asthenosphere beneath.
Therefore, Seafloor spreading happens due to divergent plate movement.
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Description: This biome has heavy rainfall all year, over 80 inches. It is known for dense, lush vegetation in a hot, humid, tropical climate. This biome has tremendous biodiverrsity, from butterflies the size of soup plates, to howler monkeys, anacondas, jaguars, and ants as big as your thumb.
The biome described here is a...
a
tundra biome.
b
temperate (steppe) grassland biome.
c
desert biome.
d
rainforest biome.
What is the origin of our solar system’s revolution (orbit) around the sun?
Answer:
The history of sun exists from the day earth came into existence. But the actual truth of the movements and other knowledge were known with time and studies. The Sun and all the planets together is called the solar system. This formation occurred from the formation of a giant cloud of dust and gases known as the solar nebula. This was 5 billion years ago . Bit the nebula had to collapse due to increased forces applied.
Explain four stages in the epidemiologic transition.
In the mid 1800s, many Americans living on the east coast moved West in search of jobs building the railroad or for get rich quick ideas like the gold rush in
California. Which statement best describes this migration?
A interregional migration
B. voluntary international migration
OC. political push migration
OD forced intraregional migration
E. intercontinental migration
Answer:
The correct option is (B)
(B) voluntary international migration
Explanation:
Even people from Mexico and other foreign nations arrived in California to look for the precious metal.
What was the particular challenge of crossing the Indian ocean in order to reach asia short answer
Answer:
Long voyages, narrow routes
Explanation:
Indian ocean has been always been a strategic place for trade and commerce and well as connecting the culture of southeast Asia with those of western civilization. Example of the silk route and the discovery of speciesdid global waming help scientits learn about the inside of earth or not
Answer:
no.
Explanation:
i think
Answer:
Yes
Explanation:
Describe three characteristics of lava? Explain
Answer:Volcanoes
Volcanoes are a good way for the earth to blow off a little steam. More correctly, volcanoes are vents in the earth's crust through which lava, rock fragments, hot vapor and gases are ejected. And, while they are all natural events in the life of Earth, there are different types of volcanoes. The types of volcanoes are differentiated based on their size, composition and explosive style.
In fact, we could compare the different types of volcanoes to players on a football team. The tall and impressive composite cone volcanoes are much like the strong and confident quarterback. The broad and lower-to-the-ground shield volcanoes are much like the beefy lineman of the team. And, the fast-growing but smaller cinder cone volcanoes are much like the quick-moving and compactly built running backs of our team. Let's take a closer look at these three main types of volcanoes.
Composite Cone Volcanoes
Composite cone volcanoes, which are also called 'stratovolcanoes' or simply 'composite volcanoes,' are cone-shaped volcanoes composed of layers of lava, ash and rock debris. Composite cone volcanoes are grand sites and can grow to heights of 8,000 feet or more. Mount St. Helens and Mount Rainier, which are both found in Washington State, are impressive examples of composite volcanoes.
These steep-sided volcanoes erupt in an explosive manner. In fact, Mount Vesuvius is a composite volcano that is most famous for burying the ancient Roman city of Pompeii in up to 20 feet of volcanic ash in 79 AD. The explosiveness of their eruptions is due to the thick, highly viscous lava that is produced by composite cone volcanoes.
And, this viscous lava has a lot to do with why they are shaped the way they are. The thick lava cannot travel far down the slope of the volcano before it cools. This makes the sides of the composite volcano steep. These explosive volcanoes also spew out eruptions of small rock and ash, which gets deposited on the sides of the volcano. Therefore, we see that composite volcanoes are composed of alternating layers of hardened lava, volcanic ash and rock fragments, which is why they are called 'composite.'
Explanation:
!!HELP!!
A coral reef, like the one shown in the photo, is a structure composed of the calcium carbonate exoskeletons of corals, a type of animal. Which term best characterizes the role of corals in a coral reef ecosystem?
Biotic term best characterizes the role of corals in a coral reef ecosystem. Because they are living organisms, coral reefs are biotic components of an ecosystem. Coral reefs are actually living creatures even though they appear to be inanimate objects.
What kind of animals live in the coral reef?
Numerous species of fish as well as different sponges, oysters, clams, crabs, sea stars, and sea urchins all find a home on coral reefs. Additionally, seagrass, mangrove, and mudflat communities nearby are ecologically connected to coral reefs.
The ecosystem's exposure to sunlight, the amount of oxygen and nutrients that are dissolved in the water, the distance from land, the depth, and the temperature are all significant abiotic factors. Biotic factors include plants, animals, and microbes.
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Which front forms widespread clouds, rain, or snow?
A.cold front
B.warm front
C.occluded front
D.stationary front
Answer:
Occluded Front
Explanation:
Got it right on Edge 2020
Answer:
C: Occluded front
Explanation:
Trust me on this, also can I have brainiest please?
Hope you do well! :D
Ancient people domesticated certain plants. Domestication is a process of changing wildlife to better suit human needs.
Which is an example of the domestication of plants by ancient people?
А. raising crops
B. burning fallen leaves
C. picking dandelions
D. chopping firewood
Because limestone is made of the mineral __________, it is easily dissolved by acid rain, which is a type of ___________ weathering known as ____________. (Pick the three words that fit)
halite, mechanical, thermal expansion and contraction
halite, mechanical, thermal expansion and contraction
calcite, chemical, oxidation
calcite, chemical, oxidation
gypsum, mechanical, tree root wedging
gypsum, mechanical, tree root wedging
calcite, chemical, dissolution
Answer:
calcite, chemical, dissolution
Explanation:
Which moon has a substantial atmosphere?
Answer:
Titan
Explanation:
It is the only moon in our solar system known to have a substantial atmosphere, which is mostly nitrogen like Earth's. This moon is the largest of Saturn's Moons.
Hope this helped! :)
Which of the following has contributed the most to the increase of invasive species in Europe?
A air pollution that has destroyed native plants
B. desalination, which has killed native plants
С.
an increase in trade across the continent
D the lack of invasive species legislation in Europe
Answer:
I believe the answer is D. Europe doesn't have very many laws protecting them from invasive species.
Explanation:
Answer:
a.
Explanation:
How is Brazil an interdependent country?
Answer:
Brazil is a South-American country that has political independence from the 19th Century.
Explanation:
Brazil was a Portuguese colony until 19th Century when it gained political and economical independence. It is today one of the leading economies in the region that has democratic leadership, that is independent towards every other country. Political independence of the country is the main reason why we can discuss about Brazil as an independent country.
