what volume of co2 gas is produced when 20g of 20% pure caco3 is completely heated​

Answers

Answer 1

20 g of 20% means you have 20*0.2 - 4 g CaCO3 to start.

pls mark me as brainliest

Answer 2

Answer:

i dont understand sorry

soryyy


Related Questions

he diagonal of a square is x units. What is the area of the square in terms of x? XSquare units Square unitS 2x Square units square units​

Answers

Answer:

[tex]A=\dfrac{x^2}{2}[/tex]

Explanation:

The diagonal of a square is x units.

Let the side of a square is s.

Using pythagoras,

[tex]s^2+s^2=x^2\\\\2s^2=x^2\\\\s^2=\dfrac{x^2}{2}[/tex]

The area of the square is,

A = s²

So,

[tex]A=\dfrac{x^2}{2}[/tex]

So, the area of a square is [tex]\dfrac{x^2}{2}[/tex]sq units.

A geographer is examining the distribution of all earthquakes that occurred in the country in the past year. The geographer is reviewing the world at which of the following scales?
A - National
B - International
C - Local
D - Individual
E - Global

Answers

Answer:

National

Explanation:

National means confined to a specific country since the geographer is focusing on one country that's the reason we choose option A

The geographer is reviewing the world at national level of scales. Thus, option (A) is correct.

Who is geographer?

The person who studies about the geography is called as geographer. He explores physical as well as the societal properties which spread across the earth.

The physical features and characteristics of the earth are analyzed and interpreted by the geographer. It is the broad field of study which tells about the relationship of the humans and the earth physical features. It tells about the environment, species, organisms living in the particular area.

When the geographer studies about the situation at the country level, it is termed as national. The study of the earthquake is measured at national level.

Therefore, it can be concluded that option (A) is correct.

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Jean-Jacques Dessalines
Foi um líder na Revolução Haitiana, proclamou a independência do país, em 1º de janeiro de 1804, sendo seu primeiro governante.

Verdadeiro
Falso

Answers

Answer: Verdadeiro

Explanation:

Jean-Jacques Dessalines foi um líder da Revolução Haitiana.

Your answer in True………

on which data van mahotsav is celebrated? And why?​

Answers

Answer:

The Tree Festival, popularly known as 'Van Mahotsav' is a week-long festival celebrated from July 1 to 7 (the first week of July) during which millions of trees are planted all over India. It was initiated in 1950 by K.M. Munshi, the Union Minister for Agriculture and Food at that time.

It was started to create awareness in the mind of the people for the conservation of forests and planting of new trees. Van Mahotsava is celebrated as a festival of life. In India, it was started as a movement to save mother earth.

which projection would be best for easily visualizing populations in one part of the world

Answers

Answer:

Three of these common types of map projections are cylindrical, conic, and azimuthal.

Cylindrical Map Projections -  Cylindrical map projections are one way of portraying the Earth.

Conic Map Projections -  A method of projecting a map of parts of the spherical surface on a surrounding cone.

Azimuthal Map Projections

Explain how over cultivated land can increase the risk of flooding​

Answers

Answer:

Factors such as compaction prevent the soil from being able to hold more water and lines and cracks in the soil concentrate the water flow — therefore speeding up the flow of water on the soil's surface. This in turn increases the volume and speed of water flowing into waterways and heightens the risk of flooding.

Hi,what is the definition of lightning,tsunami and tornado?
thanks for help
Have a nice day​

Answers

Answer:

It is important to never confuse a tornado with a hurricane or other tropical cyclone because tornadoes and hurricanes are very different phenomena. Perhaps the only similarity between tornadoes and hurricanes is that they both contain strong rotating winds that can cause damage.

Answer:

explanation:

Explanation:

light·ning

noun

the occurrence of a natural electrical discharge of very short duration and high voltage between a cloud and the ground or within a cloud, accompanied by a bright flash and typically also thunder.

tsu·na·mi

noun

a long high sea wave caused by an earthquake, submarine landslide, or other disturbance.

tor·na·do

noun

a mobile, destructive vortex of violently rotating winds having the appearance of a funnel-shaped cloud and advancing beneath a large storm system.

one type of rock is also named as stratided rock. name the rock and fove reason​

Answers

Answer:

"Sedimentary Rocks" is the right answer.

Explanation:

Throughout time winds as well as glaciation constructions created Sedimentary rock, sometimes termed Stratified rock, might well be generated by weathering, compressive as well as disintegration.Guess it depends on the heavy metal concentration, the characteristics differ somewhat from green to grey to reddish to brown which is generally sweeper than ordinary sandstone.

Thus the above is the correct solution.

What term describes weathering

Answers

Answer: Weathering is the process of wearing and breaking down due to many factors such as rain and ice.

Explanation:

advantage of dust particles in the air​

Answers

it can deposit better soil in areas that may need it

Which of the following factors is one of two that is usually most responsible for determining population growth?

Answers

Answer:

well i need to see the options that we can choose from to answer that

Explanation:

2. What country is made up of many islands and surrounded by several seas? * ​

Answers

Answer:

Many island countries are spread over an archipelago, as is the case with the Federated States of Micronesia and Indonesia (both of which consist of thousands of islands).

...

Sovereign states and states with limited recognition.

Groundwater levels within an aquifer generally rise and fall due to the annual rain cycle, but prolonged periods of rainfall can cause
flooding that can last for weeks. Groundwater flooding occurs when water levels in the ground rise above the land surface.
Where does the type of flooding caused by groundwater levels most likely to occur?
es )
A)
rural areas
B)
above an aquifer
C)
below an aquifer
D)
D
aquifers never overfill

Answers

Answer:

D

Explanation:

which of the following is the most important natural resources?
a) land
b) water
c) air
d) all of these​

Answers

Answer:

d. all of these most important natural resources

Answer:

d

Explanation:

all of these resources are equally necessary for us live

and continue our daily life

Question: what is Agenda 21 ?​

Answers

Answer:

Agenda 21 is a comprehensive plan of action to be taken globally, nationally and locally by organizations of the United Nations System, Governments, and Major Groups in every area in which human impacts on the environmentAgenda 21 is a comprehensive plan of action to be taken globally, nationally and locally by organizations of the United Nations System, Governments, and Major Groups in every area in which human impacts on the environment

Answer:

Agenda 21 is the plan of action to achieve sustainable development that was adopted by the world leaders at the United Nations Conference on Environment and Development held in Rio de Janeiro, Brazil,

Which are the two largest planets?

Answers

Jupiter and Saturn are the 2 biggest planets in our solar system but there are millions on planets that are bigger.

Answer:

Jupiter and Saturn!

Was the scramble for Africa positive or negative for the continent? Write a short paragraph that gives your educated opinion. Use at least two pieces of evidence to support your answer.

Answers

​In all, the Scramble for Africa had a profound impact on the history of the world. It led to both positive and negative outcomes for the people of Europe and Africa.

Answer:

The Scramble for Africa definitely had terrible consequences for the continent. The only people who benefitted were the colonizers, who sought to exploit raw materials and people in Africa. Here are some examples of the impact colonization in Africa had:

- Resource depletion

- Labor exploitation

- Lack of political development in African countries after colonization

- Lack of industrialization

Which of these adaptations allow the water hyacinth plant to survive in an aquatic region?
(i) Bulbous swelling filled with air
(ii) Needle shaped leaves
(iii) Lightweight body
(iv) Fixed roots

Answers

Water hyacinth exhibits hydrophytic adaptations which include reduced epidermis cells lacking cuticle in most cases, presence of large air spaces (7~50 μm), reduced vascular tissue and absorbing structures.

The oldest rocks that make up Lo'ihi is an estimated 400,000 years old. Using the rate of plate movement that you calculated in question #2, how far has it traveled in km since its first lava cooled? Hint: you need to rearrange the rate formula to determine distance and then convert cm to km. Rate=distance/time so distance= rate x time.

Answers

The oldest rocks that make up lol highest estimated 4000 years old using the rate of plate movement that you can calculate in question to Kim traveled really far I am really really really really really really really really really sorry that I couldn’t help you with this

Age difference is 38.7 million years. Distance is travelled = 34.68

What is the oldest rock?

The term "oldest rock" found on Earth, so far, date back about 4.28 billion years. Canadian bedrock as the oldest rock on earth.

10. 5 cm is the distance between the two. 1 cm = 250 km. So, the age difference is 38.7 million years. Distance between about Lo'ihi is 3358.7 km. So, rate movement is 3358.7/ 38.7 × 0.1 rate is 8.67 cm/yr.

Given, the oldest rocks that make up Lo'ihi is an estimated 400000 years old. So, distance travelled = Rate × Time; 8.67 × 400000; 3468000 cm; 34.68 km

As a result, distance is converted into 8.67 cm / yr.

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How does the pressure and temperature of each air mass cause changes?

Answers

Air currents can experience changes from atmospheric pressure and temperature because these variables modify them.

What are air currents?

An air current is a term to refer to the movement of air. This movement is an innate characteristic of air. However, it is also due to factors such as:

Atmospheric pressure: Particles float from areas with higher pressure, to those in which the pressure is lower. Atmospheric air pressure is directly related to altitude, temperature and its composition.Temperature: Higher temperature air currents tend to lose density and move towards higher areas, while lower temperature air currents move to lower areas.

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please tell me answers ​

Answers

Answer: The giant panda is often found in Central China. The giant panda is a large panda with black and white fur. They have vertical slits for eyes as cats do. The reason why giant pandas are endargared is habitat construction. The human population is constantly rising so it pushes the pandas into poor living environments. One thing you can do to save these poor creatures is to have natural preserve areas. I believe we should look more into having more natural preservations for these giant pandas

Explanation:

I did research.

UMA DAS PRINCIPAIS MUDANÇAS QUE MARCAM O FIM DO FEUDALISMO E INICIO DO CAPITALISMO COMERCIAL É A RALAÇÃO DO TRABALHO COM O CAPITAL.
( . )VERDADE ou ( . )FALSO

Answers

Answer:

Verdadeiro

Explanation:

Olá. Antes de explicar a sua resposta, eu preciso te falar que ese não é o site brasileiro, mas sim o site estadunidense. ISso significa que voc~e não pode postar perguntas em portugues, a não ser que essa pergunta esteja dentro do tag "world languagens" independente da materia a qual ela esta relacionada. Caso, contrario a sua pergunta poderá ser excluída se resposta.

O feudalismo, que se estabeleceu antes do capitalismo, tinha como principal caracteristica a relação de servidãos entre ostrabalhadores e os feudos. Essa elação foi completamente quebrada durante o inicio do capitalismo comercial, onde onde a relação servil dos feudos, foi sbstituída pela relação entre trabalho e capital. Essa mudanço exterminou a existencia do servo e deu lugar a existencia do trablhador livre e assalariado.

The extinction of the dinosaurs happen at the end of which period

Answers

Answer:

Cretaceous Period

Explanation:

Dinosaurs went extinct about 65 million years ago (at the end of the Cretaceous Period), after living on Earth for about 165 million years.

Hi!the extinction of the dinosaur happened at the end of the Cretaceous Period.

The most distinctive feature of Jupiter is its ____

Answers

it’s rings ya that’s ire

Answer:

The great red spot also known as the infamous giant rotating storm.

Sam is given three sets of wooden blocks, as shown. Sam will use the sets to model how rocks change during different parts of the rock cycle. Describe how Sam can arrange the sets of blocks to model how rocks change as a result of weathering. Justify your reasoning.​

Answers

Answer:

Y, Z, X

Explanation:

Weathering is the gradual decomposition of rocks by some of th agents of weathering such as the actions of wind and water.

Stage 1: Y block model the first stage of weathering when the rock is still a whole. It has not been affected by wind or water at this stage

Stage 2: Z block can be used to model this stage. The rock has started decomposing. It has decomposed from a whole rock into 8 small rocks.

Stage 3: X block model this stage. The rock has further decomposed from Z block to X block, that is, from 8 small rocks to 64 smaller rocks

In conclusion,

From 1 whole box to 8 small boxes to 64 smaller boxes

Which map is useful for surveying soil

Answers

Answer:

digital soil mapping

DSM makes use of pedometrics which refers to the application of numerical techniques to describe and map soils. The idea is to make soil survey, classification, and land evaluation as objective as possible.

Some immigrants from Czechoslovakia fled the religious and political oppression in the
Jewish
empire.
a.
b.
Polish
C.
German
d.
Austrian

Answers

The answer is D. Austrian :)

Answer:

D. Austrian

Explanation:

On edge, got 100%

hree different kinds of plate boundaries are associated with stresses that deform rock. Divergent boundaries occur where plates pull apart from each other, and are associated with tensional stress. Convergent boundaries occur where two plates collide into each other, and are associated with compressional stress. What type(s) of stress is associated with transform plate boundaries

Answers

Shear stress is associated with transform plate boundaries

In the study of geography, place refers to?
A - The location of a site compared to another site.
B - The characteristics of a particular site.
C - The region to which a site belongs.
D - The longitude and latitude location of a site.
E - The distance from one site to another.

Answers

Answer:

c. the region to which a site belongs

B - The characteristics of a particular site.

Select the correct answer.
Which country was forced to turn over its territories in the South Pacific after World War 112
O A. Japan
OB.
United States
Oc.
Great Britain
OD. Germany

Answers

Answer:

Japan

Explanation:

It was forced to surrender it's Territories in 1945 to the Allied Forces.

Hope this helps u

Answer:

Japan

Explanation:

Japan held many major South Pacific territories and was forced to give them up after America and Great Britain went in and destroyed the Germans and Japanese

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Identify the following costs as fixed or variable: Costs related to plane trips between Boston, Massachusetts, and San Diego, California, follow. Pilots are paid on a per-trip basis.a. Pilots salaries relative to the number of trips flown.b. Depreciation relative to the number of planes in service.c. Cost of refreshments relative to the number of passengers.d. Pilots salaries relative to the number of passengers on a particular trip.e. Cost of a maintenance check relative to the number of passengers on a particular trip.f. Fuel costs relative to the number of trips. One-half (x + 6) = 18 Why was the last Han Emperor considered. Emperor Xiandi, not considered a strong Emperor?What is the answer Sarah is a 21 year old college student. Sarah comes home each day from class and cries because her classes are so difficult. One day Sarah walks into her dorm room and screams at her roommate for not putting the laundry away. She then storms out of the room, to then find herself sobbing uncontrollably on a park bench. Sarah is not a/an __________. How can racism benefit anthropology? Verify that a(b+c)=(ab)+(a c), a=10 , b=5 , 6=2 Please help Ill give brainliest Harry makes pizzas to sell in his caf. He buys packets of grated cheese and boxes of mushrooms and then uses them for the pizza toppings. For example, a bag of grated cheese is divided into 4 portions and used to top 4 pizzas. What formula is in cell D3? The system of equations y = negative one-fifth x minus 6 and y = 2x + 3 is shown on the graph below.On a coordinate plane, 2 lines intersect at (5, negative 7).According to the graph, what is the solution to this system of equations?(5, 7)(7, 5)(5, 7)(7, 5) Can someone please help me ? Who was a first lady who lobbied for educational opportunities for women?Mercy Otis WarrenMartha WashingtonMartha JeffersonAbigail Adams an essay in french about my primary life If an average-sized man with a parachute jumps from an airplane, he will fall 12.5(0.2t 1) + 21t feet in t seconds. How long will it take him to fall 150 feet? (Round your answer to two decimal places.) If sin theta = 8/17 and cot theta < 0, what is sec theta? You will need the same dataset used for problem 3 in homework 1 (the dataset obtained from the yahoo website with the company you selected). Use Excel to calculate the average and standard deviation of the close data column. Assume that these two numbers represent the population (parametric mean and population standard deviation, respectively, for the variable length (in cm) in a population printout of the data to your homework and write down the ticker code on it. a. Calculate the probability of sampling at random a fish that is smaller in size than the value you would obtain by subtracting half the standard deviation from the average [x will be equal to: -(6/2)] b. Calculate the probability of sampling at random a fish that is greater in size than the value you would obtain by adding half the standard deviation from the average [x = u + (0/2)] c. Calculate the probability of sampling at random a fish that has a size between the two values [x = -(6/2), x=u +(6/2)) used in parts "a" and "b," respectively d. Calculate the 25th and 75 percentiles of fish size for the population using the normal distribution table. e. Imagine that 5 individuals are sampled at random from this fish population. Calculate the probability that the average calculated will be less than the value: -(6/3) PLSSS HELPPP no linkss plsss im begging all the companies or individuals involved in moving goods or services from producer to consumers Makes use of sharp objects to create designs on wood IS the word in bold acting as a participle or a verb The street lights are shining brightly at my window. Which foreign policy approach describes a country that avoids interaction with other countries? Intervention Diplomacy Imperialism Isolation