8
Calcium carbonate (limestone) decomposes when heated.
Caco, + CaO + CO2

b) Calculate the volume of carbon dioxide produced if 10 grames were decomposed.​

Answers

Answer 1

Explanation:

Equation -

CaCO₃ → CaO + CO₂

molecular masses of -

CaCO₃ = 40+12+16×3 = 100 g/mol

CaO = 40+16 = 56 g/mol

CO₂ = 12+16×2 = 44 g/mol

Now,

If 100 g of CaCO₃ is decomposed then it produces 56 g of CaO and 44g of CO₂

Then,

If 1 g of CaCO₃ is decomposed then it produces 56/100g of CaO and 44/100g of CO₂

Now,

Here in question, 10g of CaCO₃ is decomposed

It means, It produces

56/100 × 10 = 56/10 = 5.6 g of CaO and

44/100 × 10 = 44/10 = 4.4 g of CO₂

Now,

we get that 10 g of CaCO₃ on burning produces 4.4 g of CO₂

we need to calculate volume of 4.4 g of CO₂

mole = mass/Gram molecular mass

Then,

mole = 4.4/44 = 0.1

Now,

volume = mole × 22.4 (in Litres)

= 0.1 × 22.4 = 2.24 L

Hence,

2.24 L of CO₂ will be produced when 10g of CaCO₃ decomposed.


Related Questions

What effect does the spinning of the earth's core have?
A.it creates gravity
B. it creates matter
C. it creates mass
D. it creates the earths magnetic field.

Answers

Answer:

c

Explanation:

its c

Earth contains a spinning electric filed. The spinning of earth core creates its magnetic field. Thus, option D is correct.

What is a spinning body?

A body which rotates in its own axis is called a spinning body. Earth rotates about its along with revolving around sun.  The outer core of earth generates electric current. This is called telluric current.

Flow of this current creates an electric current which is parallels to the surface of earth. The direction of magnetic field lines will be perpendicular to the direction of current. But it comes stronger when parallel to current.

A rotating electric current results in the generation of a magnetic field. Thus spinning of  earth core generates a magnetic field and therefore, option D is correct.

To learn more about magnetic field, refer the link below:

https://brainly.com/question/11514007

#SPJ2

how many hydrogen atoms are there in one mole of ethanol.​

Answers

Answer: 6 molecules

Clinical thermomerter​

Answers

Answer:

Here is the definition: A medical thermometer (also called clinical thermometer) is used for measuring human or animal body temperature.

a small medical thermometer with a short but finely calibrated range, for taking a person's temperature.

Which of the following might be included in a chemical
reaction?



a Molecules
b lons
C Pure elements
d All of the above

Answers

Answer:

D. All of the above

Explanation:

Molecules, ions, and pure elements might be included in a chemical reaction. Therefore, option (d) is correct.

What is a chemical reaction?

A chemical reaction can be described as a reaction that brings the chemical conversion of one chemical substance to another chemical substance. The reactions cause chemical changes that include the rearrangement of electrons in order to create and break bonds between atoms.

The compound or molecules which are primarily utilized in a reaction are called reactants. Chemical reactions give products, which possess characteristics different from the reactants of the reaction.

Chemical reactions take place at a definite rate of reaction at a given concentration, temperature, and pressure. The rate of reaction increases with the rising temperature of the reaction as more activation energy is available for reactant molcules collisions.

Therefore, in a chemical reaction reactants and products can be present as Molecules, ions, and pure elements.

Learn more about Chemical reactions, here:

brainly.com/question/22817140

#SPJ2

0.28gram of NH3 on decomposition gave 0.25gram of nitrogen and hydrogen. Find the volume of hydrogen evolved at Ntp. (2gram hydrogen at NTP= 22.4liter)

Answers

The volume of H₂ evolved at NTP=0.336 L

Further explanation

Reaction

Decomposition of NH₃

2NH₃ ⇒ N₂ + 3H₂

conservation mass : mass reactants=mass product

0.28 NH₃= 0.25 N₂ + 0.03 H₂

2 g H₂ = 22.4 L

so for 0.03 g :

[tex]\tt \dfrac{0.03}{2}\times 22.4=0.336[/tex]

lonic bonds tend to form between two atoms with what characteristics?​

Answers

Answer:Ionic bonds are formed through the exchange of valence electrons between atoms, typically a metal and a nonmetal. The loss or gain of valence electrons allows ions to obey the octet rule and become more stable. Ionic compounds are typically neutral. Therefore, ions combine in ways that neutralize their charges.

Explanation:

Ionic bonds tend to form between two atoms with a high electronegativity difference.

Explanation:

An Ionic bond is defined as a chemical bond in which the complete transfer of electrons occurs from one atom to another.The transfer of electrons occurs from less electronegative atom to highly electronegative atomThe high electronegativity difference between the atomsCompounds with ionic bonds categorized as ionic compounds

So, from this, we can conclude that ionic bonds tend to form between two atoms with a high electronegativity difference.

Learn more about ionic compounds here:

brainly.com/question/7193259?referrer=searchResults

brainly.com/question/1669915?referrer=searchResults

help pls I will give brainliest!

Answers

Answer:

The answer is D, I would type it out but it is to long and I'm kind of lazy, but anyways! Your answer is D

Hope This Helps!

Answer this easy science question for brainiest
First come first served:)

Answers

Answer:

The nucleus is a collection of particles called protons, which are positively charged, and neutrons, which are electrically neutral.

Explanation:

Answer:

the person above me is right

hope you do good on your test

Explanation:

Which type of bond is salt? a. covalent b. valence c. metallic d. ionic

Answers

Answer:

D. Ionic

Explanation:

It has ionic bonding! Good luck ^^

HELP! HELP!
an element with 5 protons, and 8 electrons has an atomic number of?

Answers

Answer:

Explanation:  15

A given mass of gas in a rigid container is heated from 100 °C to 300 °C. Which of the following best describes what will happen to the pressure of the gas? The pressure will

Answers

Answer:

Pressure will increase by a factor of 3.

Explanation:

PV = nRT —> Ideal gas equation.

Taking into account the Gay-Lussac's Law, the pressure will increase by a factor less than three.

Gay-Lussac's law indicates that, as long as the volume of the container containing the gas is constant, as the temperature increases, the gas molecules move faster. Then the number of collisions against the walls increases, that is, the pressure increases. That is, the pressure of the gas is directly proportional to its temperature.

In summary, when there is a constant volume, as the temperature increases, the pressure of the gas increases. And when the temperature is decreased, the pressure of the gas decreases.

Mathematically, Gay-Lussac's law indicates that the ratio of pressure to temperature is constant:

[tex]\frac{P}{T} =k[/tex]

Studying two different states, an initial state 1 and a final state 2, it is satisfied:

[tex]\frac{P1}{T1} =\frac{P2}{T2}[/tex]

In this case, a given mass of gas in a rigid container is heated from 100 ° C to 300 ° C, that is, it is heated from 373 ° K to 573 ° K. This indicates that the temperature is increasing by a factor less than three. Since pressure is directly proportional to temperature, pressure must increase in the same proportion.

Finally, the pressure will increase by a factor less than three.

Learn more:

https://brainly.com/question/4147359?referrer=searchResults

A student is able to lift 500N weight by applying 100N. What is the mechanical advantage of a simple machine?

Answers

Explanation:

Load=500N

Effort=100N

Now,

We have,

Mechanical advantage= Load / effort

= 500/100

=5

Therefore, mechanical advantage is 5.

Which temperature is the warmest?
290K
75 F
30 C

Answers

Answer:

What the heck is "K" but I beleive 75 is the answer, but maybe wait for sumone else to answer.

Explanation:

Answer:

30 C

Explanation:

Convert 5 micrometers to meters

Answers

0.000005 is your answer. Hope this helps!!

“Selective” means to pick and choose; “permeable” means objects can pass through something. Do you think cell membranes are “selectively permeable”? Give evidence to support your answer.

This is due at 4 p.m.

Answers

Answer:

yes the cell membranes are semi permeable

What is 210 kg - 38 kg rounded to the correct number of significant figures

Answers

Answer:

170kg

Explanation:

What does an atomic number represent in an atom? number of neutrons number of protons number of electrons number of protons and neutrons

Answers

Answer:

The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.

Answer: I'm pretty sure the answer is Number of Protons

Explanation:

I took the k-12 test

Si units are the modern form of _____

Answers

of the metric system

Answer:

Metric system !!hope this helpss

plsssssssssssssssssssssssssssssssssssssssss help me

Answers

Answer:

C

Explanation:

A year is a complete revolution around the Earth

I will mark brainliest!
Which particle has a high rate of deposition?
A. a low-density particle
B. a small particle falling off a cliff
C. a particle with jagged, rough ends
D. a large round particle settling on a surface

Answers

Answer:

C ! :)

Explanation:

Answer:

The correct answer is A

Explanation:

LOW-DENSITY PARRTICLE

Select the correct answer

Giving brainliest

Answers

I believe it’s b sorry if it’s wrong I took this kind of class last year

Answer: is C&A

Explanation:the electric motor converts  electricity in to mechanical energy

the  electric generator converts mechanical energy to electricity so it could not be D.

and they don't use batteries as their main source of power so it could not be B.

hence forth it is C&A

HOPE THIS HELPS!!!!!!1

PLEASE MARK BRAINLIEST!!

How did astronomers use technology to identify characteristics of the Crab nebula? technology that detects ultraviolet light found hydrogen in the nebula technology that detects radio waves identified a pulsar at the center of the nebula technology that detects microwaves revealed the behavior of electrons in the nebula technology that detects gamma rays measured the distance of the nebula from Earth

Answers

Answer:

technology that detects radio waves identified a pulsar at the center of the nebula

Explanation:

Crab nebula(M1) is a blob-like patch which is supernova remnants as far as Constellation of Taurus is concerned.

It has apparent magnitude of 8.4 and can only be viewed by telescope. The astronomers make use of technology that detects radio waves, which identified a pulsar at the center of the nebula, this pulsar is a magnetized rotating compact star which is known with it's electromagnetic emissions.

Answer:

technology that detects radio waves identified a pulsar at the center of the nebula

Explanation:

Explain why the Earth has four different seasons​

Answers

Answer:

Earths rotation

Explanation:

Answer:

because if there was not four diferent season we would not have a day or a night because we would not be moving

Explanation:

Is the average atomic mass of a sample containing three lithium-6 and two lithium-7 closer to the mass of Li-6 or Li-7 ?

Answers

The average atomic mass of a sample closer to the mass of Li-6

Further explanation  

Isotopes are atoms whose no-atom has the same number of protons while still having a different number of neutrons.  

So Isotopes are elements that have the same Atomic Number (Proton)  

Atomic mass is the average atomic mass of all its isotopes  

In determining the mass of an atom, as a standard is the mass of 1 carbon-12 atom whose mass is 12 amu  

Mass atom X = mass isotope 1 . % + mass isotope 2.%  

three Li-6, mass number = 6

two Li-7, mass number = 7

total abundance = 5

abundance for Li-6 =

[tex]\tt \dfrac{3}{5}\times 100\5=60\%[/tex]

abundance for Li-7 =

[tex]\tt \dfrac{2}{5}\times 100\5=40\%[/tex]

Average atomic mass :

[tex]\tt (0.6\times 6)+(0.4\times 7)=6.4[/tex]

When fossil fuels, such as gasoline, are burned, they create smoke. Smoke is best described as a heterogeneous mixture of solid particles from the burning fuel dispersed in a gas – usually air. Smoke can be described more specifically as a suspension. What will most likely happen over time to smoke in the atmosphere? The solid particles will spread out and dissolve. The particles will eventually come together in a cloud and produce rain. Over time, the solid particles will settle on whatever is outside. The particles will remain mixed in the air.

Answers

Answer:

Over time, the solid particles will settle on whatever is outside."

Explanation:

Answer:

C

Explanation:

Among the groups of elements listed below, which have the same number of electrons in their outermost energy levels?
O NP. As, Sb
None of these
OK, Ca, Rb, Sr
OLI, B, C F
O Na Mg, ALS

Answers

Answer:

N, P, As, Sb

Explanation:

Elements present in the same group having same number of valence electrons. The first option is correct from given options because nitrogen, phosphorus, arsenic and antimony are present in same group thus having same number of electrons in outer most  energy level.

Electronic configuration of N:

N₇: [He] 2s² 2p³

Electronic configuration of P:

P₁₅: [Ne] 3s² 3p³

Electronic configuration As:

As₃₃: [Ar] 3d¹⁰ 4s² 4p³

Electronic configuration Sb:

Sb₅₁: [Kr] 4d¹⁰ 5s² 5p³

Here it is clear from electronic configuration all these elements have five number of valence electrons.

how many electrons are in the second ring of sodium​

Answers

Answer:

there are eight electrons

Plsss helpppp
im confused
will mark BRAINLIEST

Answers

i am thinking Li & CI :)

Answer:

I searched the answer up on Brainly so its not my credit.

Explanation:

The answers D.

"If you have learned that metal + nonmetal ⟶ ionic bond, the answer is D, because N and C are the only pair of nonmetals.

However, if you have learned that a bond is ionic if the electronegativity difference (ΔEN) between the two atoms is greater than 0.7, the answer is A, B, and D.

The Li-Cl bond is definitely ionic.

For Na and C, ΔEN =1.62, so the Na-C bond is a highly polar covalent bond.

For Mg and C, ΔEN = 1.24, so the Mg-C bond is a polar covalent."

Hope this helps :D

which statement is a scientific law

Answers

Answer:

It is b

Explanation:

The rows in the periodic table are called periods.
What is true about elements in the same period?
A. They have the same atomic mass.
B. Their magnetism increases in strength from left to right.
C. Their atomic numbers increase by 1 from left to right.
D. They have similar chemical properties.

Answers

Answer: C) Their Atomic Numbers increase by 1 from left to right

Answer: C

Explanation:

Other Questions
The German car company, Daimler-Benz, merged with Chrysler in 1998. Cultural differences lead to conflicting priorities and goals and contributed to the failure of the merger. Specifically, Daimlers culture was characterized as conservative, efficient, and safe; Chryslers culture was described as daring, diverse, and creative. Which of the cultural dimensions best describes Daimlers culture? What two exercises could be used to increase your ability to perform push-ups in a fitness evaluation Which is not a part of Buddhist religious teachings?A. the AnalectsB. the Four Noble TruthsC. NirvanaD. the Noble Eightfold Path g You and your friend both send documents to the printer, but the printer can only print one document at a time. What does it do with the other document A ruby ring which normally sells for $310 is on sale for $217. Find the percent markdown for each ring. A scientist who collects and analyzes DNA from a crime scene is a What goes in the blank ? to attend a football game it costs $8 for a parking ticket plus $59 per ticket. If Brian paid $362, how many tickets did he purchase Long lashes (L) are dominant over short eyelashes (l). Complete a Punnett Square crossing two parents that are both heterozygous for long eyelashes. Can you help with these questions please i would appreciate it M is the midpoint of AN, A has coordinates(-4,-4), and M has coordinates (-7, 1). Findthe coordinates of N. PLEASE HELP QUICKLY!!!!! PLZZZZZZ!!!!!!! Convert 5 micrometers to meters What is the result when you change the line y = 6/5 x + 2 toAx + By + C = 0 form? Sean is trying to decide if a cell is a plant or animal cell. He studies the cell and is able to determine the function of many of the structures in it. Which notable structure can help him identify the cell?a structure that breaks down waste and other materials in the cellonly animal cells have structures with this functiona structure that breaks down sugar molecules to provide energyonly plant cells have structures with this functiona structure that converts energy from sunlight into chemical energyonly plant cells have structures with this functiona structure that can store water, waste, food, and other materialsonly animal cells have structures with this function The cost of an item is $0.30 per ounce. If total cost of the item is $3.60, how many ounces are in the item? lonic bonds tend to form between two atoms with what characteristics? Congenital heart defectsO are present at birthO result from poor dietO affect mainly older peopleO can be prevented with regular exercise On a map, the distance from Kansas City to Cleveland is 5.3 inches. If 2 inches on the map represents300 actual miles, what is the actual distance from Kansas City to Cleveland?Set up a proportion and solve it. Be sure to include units in your answer! A turtle is moving at a speed of 1.5 m/s for a time of 120 s. What is the distance the turtle travels?