Larger rocks are broken down to form smaller rocks which over time, form the basis for soil is True.
Weathering is the decomposition or dissolution of surface rocks and minerals. When rock is mined rock fragments and minerals are carried away through a process called erosion. Water acids salts plants animals and temperature changes are all factors in weathering and erosion.
The process of breaking down large rocks into smaller pieces and sand is called weathering. The process of breaking down large rocks into smaller pieces and sand is called weathering. Weathering is a term that describes the general process by which surface rocks break down into sediments, clays, soils, and dissolved substances in water. The weathering process usually begins when the crust is lifted by tectonic forces.
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what is the mass of chlorine that reacts with 3.94 g of gold.
6.07 g of gold chloride is created when 3.94 g of gold is combined with chlorine.
Here are five facts about chlorine:
Chlorine ranks as the third most prevalent element in the planet's water supply. In the Earth's crust, chlorine ranks as the 21st most common element. In the human body, chlorine is the tenth most common element. Chlorine gas has a yellow-green color and an earthy scent.
Which five applications of chlorine are most common?Chlorine is used to produce chlorides, chlorinated solvents, pesticides, polymers, synthetic rubbers, and refrigerants, among other things.
Gold is made into chloride by mixing it with chlorine.
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What is 7.008 x 10^6 in standard notation
Answer:
7,008,000
Explanation:
1. 7.008 x 10^6
2. Move the decimal point 6 times to the right and then calculate from there
A. Which atom in each pair would have the larger atomic radii?
1. Li or Cs
2. K or Br
3. Li or F
4. C or Pb
B. In the question above, justify your choice for K and Br. Note: you have to relate it to the structure of the atom, not just where it is at on the periodic table.
Based on the atomic structure of the given elements, the atoms in each pair having the larger atomic radii are as follows:
CsKLiPbWhat is the atomic radius of an atom?The atomic radius of an atom is the radius of the atom of an element.
It is measured as half the distance between the nucleus of two covalently bonded atoms of the element.
The atomic radius of an atom increases with an increase in electron shells or orbital but decreases with an increase in atomic number in atoms with the same number of electron shells.
Comparing the atomic radii of the given elements:
1. Li or Cs - Cs has the larger atomic radii because of greater atomic orbitals
2. K or Br - K has a greater atomic radius because it has a smaller atomic number with the same number of orbitals as Br.
3. Li or Fluorine - Li has a greater atomic radius because it has a smaller atomic number with the same number of orbitals as Fluorine.
4. C or Pb - Pb has the larger atomic radii because of greater atomic orbitals
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c. A pure substance has "one set of universal properties". What does this mean?
A pure substance has "one set of universal properties". This means they have some of the universal properties in common.
The definition of universal propertyA characteristic that describes some structures up to an isomorphism is known as a universal property in mathematics, more specifically in category theory.
As a result, independent of the construction technique used, some objects can be described using universal properties. For example, one can define polynomial rings as derived from the field of their coefficients, rational numbers as derived from integers, real numbers as derived from integers, and rational numbers as derived from real numbers.
All of these definitions can be made in terms of universal properties. In particular, the concept of universal property offers a simple demonstration of the equality of any real number structures, requiring only that they satisfy the same universal property.
What is the universal property of all substances?Diamagnetism is a feature that all substances share.
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Would the temperature change more or less for a good conductor
Answer:
I think yes
Explanation:
Temperature Effect on Conductors, Semiconductors & Insulators -The resistance of the conductor increase with an increase of temperature. Whereas the resistance of semiconductors and insulators decreases with an increase in temperature. The resistance of the substance either decreases or increases with a rise in temperature.
Although warmer fluid rising initiates convection in the tank, it only describes half of the convection cell. What other phenomenon occurs to perpetuate the convection cycle? Choose from the following:
Convection is an autonomous single- or multiphase fluid movement that arises from the interaction of the fluid's body forces, most typically gravity and density, with the heterogeneity of its material properties.
Q=h AΔT
Q = heat transfer rate
h = convection heat-transfer coefficient
A = exposed surface area
ΔT = temperature difference
Convection is the motion of warmer regions of a liquid or gas rising and cooler regions of a liquid or gas sinking, occasionally producing a full cycle. The visibility, especially in the air, is frequently low.
When there are changes in density inside a mass of liquid or gas, the phenomena known as a convection cell occurs in the science of fluid dynamics. The primary characteristics of a convection cell are rising and/or falling currents, which are caused by these density discrepancies.
It is the vertical circulation brought on by variations in density that are ultimately caused by variations in temperature. This process involves heat transfer through the movement of hot fluid, resulting in convection currents.
Slow-moving solids, such as a portion of the Earth's mantle, are also regarded as fluids, despite the fact that the name "fluid" normally refers to a liquid or a gas.
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iodine is prepared both in the laboratory and commercially by adding cl2(g) to an aqueous solution containing sodium iodide. 2nai(aq) cl2(g)⟶i2(s) 2nacl(aq) how many grams of sodium iodide, nai, must be used to produce 44.7 g of iodine, i2?
Chemical element iodine has the atomic number 53 and the letter I in its symbol. The heaviest of the stable halogens, it melts under ordinary conditions and forms a semi-lustrous, non-metallic solid.
The chemical element sodium has the atomic number 11 and the symbol Na. It is a delicate, silvery-white metal that is exceedingly reactive. Due to its placement in group 1 of the periodic table, sodium is an alkali metal. 23Na is the only stable isotope of it. The free metal must be synthesized from compounds because it does not exist in nature.
Iodine and sodium metal react chemically to generate sodium iodide, an ionic molecule. It is a white, water-soluble solid made up of a 1:1 mixture of sodium cations and iodide anions in a crystal lattice under normal circumstances. It is mostly utilized in organic chemistry and as a dietary supplement.
mass/MW = 27.2 / 253.8 = 0.107 moles of I2 (mole of I2 = mass/MW).
1 mole I2 equals 2 moles NaI
NaI = 0.1071 x 2 = 0.2142 mol
NaI = 149.8
NaI produced at a rate of 149.8 x 0.2142 = 32.08g
In response, 32.08g of NaI
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which of the following contains the element sodium.
Responses
NaCl
NaCl
NCl3
NCl, 3
SO4
SO, 4
SoNO3
SoNO, 3
Answer:
NaCl
Explanation:
NaCL is Sodium chloride, commonly known as salt.
How many moles of calcium are present in 199 grams of calcium?
The number of moles of calcium present in 199 grams of calcium is 4.98 moles.
How to calculate number of moles?The number of moles of a substance can be calculated by dividing the mass by the molar mass as follows:
Moles is the amount of substance; the amount of substance of a system which contains exactly 6.02214076 × 10²³ elementary entities.
no of moles = mass ÷ molar mass
According to this question, 199 grams of calcium is given. The molar mass of calcium is 40g/mol. The number of moles can be calculated as follows:
no of moles = 199g ÷ 40g/mol
no of moles = 4.98 moles
Therefore, 4.98 moles of calcium is present in 199g of Ca.
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There are three materials A, B and C. Materials A and C are soft and B is lustrous and hard; but material B is dull and not very hard. Identify the metals and non-metals from A, B and C.
A and C are metals and B is non-metal.
Metal are soft so A and C are metal and B is dull and not very hard so it is non-metal.
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According to the characteristics of metals and non-metals,materials A and C are soft while material B is a non-metal and it is not very hard.
What are the characteristics of metals and non-metals?An element is the simplest form of matter.Elements are further classified as metal,non -metals and metalloids. Metals possess luster and are malleable that is they can be drawn into thin sheets.They are also ductile and can be drawn into thin wires and are hard due to the strong ionic bonding present in them.
Non-metals on the other hand do not possess luster and are dull . They are not malleable and ductile and are soft due to the covalent bonding present in them .Due to the hard structure of metals they have high melting points and non-metals on the other hand owing to their soft nature have low melting points.
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What would you expect to happen if the cup of olive oil in question 4a is poured into a container of ethanol from question 3? Why?
I would expect to happen if the cup of olive oil in question 4a is poured into a container of ethanol from question 3 it will settle to the bottom of the container because olive oil has a higher density than ethanol,
Like a solid, a liquid has a unique characteristic density. A liquid's density serves as a gauge for its weight relative to the volume being evaluated. The liquid that weighs more is denser if two distinct liquids are weighed in quantities that are equivalent.
It will float on the water if a liquid that is less thick than water is carefully added to the surface of the water. If you add something to the water's surface that is denser than water, it will sink.
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1
Sunlight provides the energy that evaporates water from the surface of Earth. Most water vapor forms over oceans. How does water
vapor from the ocean reach the continents?
OA. It is transported by ocean waves to the continents..
Sunlight brings warm which when fall over oceans or waters evaporate and goes up to sky.
What is water vapor and how sunlight bring about such change?See our nature is all well planted cycle for the water from the rain to the water deposited in ocean.When Sunlight falls on Earth's surface brings about a change in the context of warm.When warm and heat produced by Sunlight fall on oceans, and waters , it evaporates the water and the vapor goes up to the clouds.This all is about the precipitation, a process of natural water cycling from the rain to the ocean to homes to waste to management to recycling to the water that evaporates and form water again.To know more about water vapor visit:
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using nad and nadh (no structures needed) write out the reaction for the oxidation of methanol (ch3-oh) to formaldehyde, in which nad is the oxidizing agent. we won’t encounter this reaction, but it is a lot like ones we will.
Using NAD and NADH reaction for the oxidation of methanol CH₃OH to formaldehyde, in which NAD is the oxidizing agent and then alcohol oxidase was crystallized after purification by ammonium sulfate precipitation
Oxidation means a process in which a chemical substance changes because of the addition of oxygen
Methanol was oxidized to formaldehyde by an alcohol oxidase and the reaction are
CH₃OH+O₂ → HCOH + H₂O₂
And the cofactor found in two form of cell and NAD is an oxidizing agent and it accept the electron of other molecule and reduced and this reaction is also with H⁺ form NADH which can be used as the reducing agent to donate electron and this reaction gives alcohol oxidase was crystallized after purification by ammonium sulfate precipitation
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At what frequency can you tune in an FM radio signal if the station's signal has a wavelength of 3.34 m?
89.82 MHz frequency tune in an FM radio signal if the station's signal has a wavelength of 3.34m.
What are frequency and its measure?The number of cycles or periods each second is measured by frequency. The hertz is the Si derived unit for frequency (Hz).
What is the purpose of frequency?The temporal rate of change seen in oscillatory and cyclic events, such as mechanical motion, audio signals (music), radio waves, and light, is specified by the frequency, an essential parameter in science and engineering.
Briefing:The equation is
f = cλ
Where lambda λ is the symbol for wavelength.
Where c = 300 000 000 m/s (3*10⁸ m/s), then:
300000000m/s/3.34m = 89820359.2814s
89.82 MHz.
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How much oxygen, in moles, would have to be produced to meet the needs of one person for one week, assuming a person breathes 900 grams of oxygen per day?.
The oxygen which will be consumed by a person in 1 week is 393.75 moles.
The ratio of a substance's given mass in a chemical reaction to the mass of one mole of that material is the number of moles of that substance. A mole of any substance is equal to 6.023 × 10²³ or Avogadro's number. Molecular weight and other concentration units like mole per liter are also expressed using it.
No. of moles = given mass of substance / Molar mass of a substance
here, given mass = 900g
molar mass = 16g
No. of moles = 900/16 =56.25 moles
This means that 56.25 moles are consumed by a person in 1 day
No. of moles of oxygen consumed in 1 week = 56.25 ×7 = 393.75 moles
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What type of data would be helpful to collect in the Antacid Film Canister Lab?
All of these choices
The temperature of the reactants
The concentration of the reactants
The time it takes for the top to pop on the film canister
The data that we could be able to collect in the antacid cannister lab is the time it takes for the top to pop on the film canister.
What is the Antacid Film Canister Lab?Just like every other lab that we could carry out in the pure sciences, the Antacid Film Canister Lab has the aim of trying to obtain the pressure that would be require to blow off the rocket.
In this case, the antacid is gradually dissolved in such a way that the carbon dioxide would be produced and the pressure would keep building up inside the cannister somewhat gradually.
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consider the reaction of glucose in the presence of oxygen to carbon dioxide and water. draw the line that represents the change in free energy (δg) as the reaction proceeds.
The reaction of glucose in the presence of oxygen to carbon dioxide and water is [tex]C_{6} H_{12}O_{6} + O_{2}-- > CO_{2} +H_{2}O +energy[/tex].
The reaction of glucose in the presence of oxygen to carbon dioxide and water.[tex]C_{6} H_{12}O_{6} + O_{2}-- > CO_{2} +H_{2}O +energy[/tex]
Cells break down glucose to release energy through a process known as cellular respiration or respiration. Additionally emitted throughout the process are water and carbon dioxide. Whether there is oxygen present or not, this can occur. Aerobic respiration is the term for respiration that occurs when oxygen is present. Anaerobic respiration is the term used to describe a process that occurs without oxygen.
What happens when oxygen and glucose are combined?This process is an oxidation reaction because glucose and oxygen combine to create energy. This process releases energy and it is an exothermic reaction. The human body oxidizes glucose to provide energy. This reaction with oxygen is hence referred to as an oxidation reaction.
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in the standardization part, how would the calculated naoh concentration be affected if some of the acid solution were splashed onto the flask walls and was not rinsed down before reaching the end point? would it be higher than the actual concentration, lower, or would there be no effect? explain.
The outcome won't be exact. Any liquid, including basic and acidic liquids, could contaminate it.
Why do we standardize the NaOH solution ?To determine the precise concentration of a solution whose concentration is unknown, a NaOH solution must be standardized. To obtain an equivalence point and determine the unknown concentration, standardization involves titrating a known volume of NaOH with an acid in a flask.
Purpose of standardizing the NaOH solution :To determine the precise concentration, you will standardize a NaOH solution in this experiment. You will use standardized NaOH to calculate the concentrations of HCl and HC2H3O2 solutions in subsequent experiments. You'll discover various indicators for endpoint detection.
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draw the lewis structure (including resonance structures) for methyl azide (ch3n3) . draw the molecule by placing atoms on the canvas and connecting them with bonds. do not identify the charge on each of these species. include all lone pairs of electrons.
The Lewis structures for methyl azide are shown in the image.
There are three possible Lewis structures for methyl azide. A necessary element of all three is a separation of charges between two of the three nitrogen atoms. Although separation of charges is generally seen as unfavorable, here it is necessary in order to construct Lewis structures with full electron octets for the nitrogen atoms.
The exception is the third structure, in which the leftmost nitrogen atom has a sextet instead, lowering the overall stability of that resonance structure and making it the one with the smallest contribution in the resonance hybrid.
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Project: Water Cycle Click the links to open the resources below. These resources will help you complete the assignment. Once you have created your file(s) and are ready to upload your assignment, click the Add Files button below and select each file from your desktop or network folder. Upload each file separately.
Your work will not be submitted to your teacher until you click Submit.
The poster and type written paper of water cycle use correct sentence structure, punctuation, grammar, and spelling.
Get the folder link and copy it by creating a new folder and putting all the documents in it. You can then go to the classroom select the link paste the folder link and submit. This is because online Classroom only allows you to upload videos that you own via a link or Drive.
There are two workarounds you can use. Have the original creator upload the video to the platform and share the platform link in your online Classroom assignment. Students can view the document edit the shared document, or edit individual copies of the document to work on the assignment. You can attach documents links, images videos, and add-ons to your work.
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an equilibrium is established for the reaction 2 co(g) moo₂(s) ⇌ 2 co₂(g) mo(s). use the expression for kp from part a. if at equilibrium the partial pressure of carbon monoxide is 5.21 atm and the partial pressure of the carbon dioxide is 0.727 atm, then what is the value of kp?
The value of Equilibrium constant kp = 0.019
Equilibrium constant: what is it?A dynamic chemical system approaches chemical equilibrium when enough time has passed and its composition no longer exhibits any discernible propensity to change further. The equilibrium constant of a chemical reaction is the value of its reaction quotient at chemical equilibrium.
What does equilibrium mean for KP and KC?An perfect gaseous mixture's equilibrium constants are Kp and Kc. When equilibrium concentrations are represented in terms of atmospheric pressure, the equilibrium constant employed is Kp, and when expressed in terms of molarity, it is Kc.
2 CO(g) + Mo0= 2 CO+Mo
5.2l atm 0.727 atm n
[tex]$$2 \mathrm{CO}(\mathrm{g})+\mathrm{MoO}_2 \rightleftharpoons 2 \mathrm{CO}+\mathrm{Mo}$$\\$5.21 \mathrm{~atm} 0.727\mathrm{~atm}\\\\$Equilibrium Constant, $K_p=\frac{\left[\mathrm{CO}_2\right]^2}{[\mathrm{CO}]^2}=\frac{[0.727]^2}{[5.21]^2}=0.019$[/tex]
The value of Equilibrium constant kp = 0.019
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A student measures the density of a piece of plastic to be 0.90 g/ml. However, the accepted value for the density of that type of plastic is 1.1 g/ml. What is the percent error in her measurements?
The percent error in the student's measurement is 18.2%.
How to calculate percent error?The percentage error in a measurement can be calculated by subtracting the actual number from the estimated number to find the error.
Then, one divides the error in absolute value by the actual number in absolute value. This gives the error in a decimal format. From there, one can multiply by 100% to find the percentage error.
According to this question, a student measures the density of a piece of plastic to be 0.90g/mL. However, the accepted or absolute value for the density of that type of plastic is 1.1g/mL.
Percent error = (1.1 - 0.9)/1.1 × 100
Percent error = 0.1818 × 100
Percent error = 18.2%
Therefore, 18.2% is the percentage error of the density of that plastic.
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Liquid water can be separated into hydrogen gas and oxygen gas through electrolysis. 1 mole of hydrogen gas and 0.5 moles of oxygen gas is produced from 1 mole of liquid water collected in separate 10 l containers at 1 atm. will the temperature of the gases be equal
The temperatures of the gases will not be equal as oxygen gas will have a higher temperature than hydrogen gas because it has fewer moles overall.
Briefing :The mechanical behavior of ideal gases is described by the ideal gas law. It has the ability to compute the volume of gases created or absorbed.
This equation is frequently used in chemical equations to convert between volumes and molar quantities.
According to the ideal gas law, there is a relationship between gas pressure, temperature, and volume.
PV = nRT
V is the same for both
So,
T is same for both.
When n increases, T decreases, so since n for hydrogen gas is 1 and n for oxygen gas is 0.5, it follows that oxygen gas will have a higher temperature than hydrogen gas because it has fewer moles overall.
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If the molar mass of Na2SO4•nH2O is 304.04 g/mol, what is the hydration number 'n'?A. 10B. 9C. 7D. 8
Chemistry => The Mole => Percent of water in a Hydrate
We have a compound that is hydrated with "n" moles of water. To determine the moles of water, what we will do is take as a base a mole of the dry compound, that is, 1 mol of Na2SO4.
We will determine the mass of one mol of the dry compound and the difference between the hydrated compound and the dry compound will be the water content.
Let's see what is the molar mass of the dry compound: Na2SO4
Element Mass
Na 2 x 22.99 =45.98 g/mol
S 1 x 32.065 = 32.065 g/mol
O 4 x 15.999 = 63.996 g/mol
Sum 142.04 g/mol
So, we have that one mol of Na2SO4 has a mass of 142.04.
Now, the water in 1 mol of the hydrated compound will be:
[tex]304.04-142.04=161.999g[/tex]Now, we divide the mass obtained by the molar mass of water, 18.01 g/mol:
[tex]\begin{gathered} molH_2O=161.99gH_2O\times\frac{1molH_2O}{18.01gH_2O} \\ \\ molH_2O=9 \end{gathered}[/tex]In the hydrated compound, we have 9 moles of H2O for each mol of Na2SO4.
Therefore the ANSWER will be B. 9
Find the mean of the data.
The number of students who
have a cat in each class.
4, 1, 3, 9, 6, 3, 2, 4
Mean [?] cats
The mean of the data is 4.
The formula of the mean is
Sum of all the observation÷ Total number of observations
So, According to the formula :
Sum of all the observations= 4+1+3+9+6+3+2+4 = 32
The number of observations is 8
So,
32÷8
= 4
Hence, the mean of the data is 4.
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a person enters a kitchen and smells lemons. the next time the person smells lemons, the scent and name of item producing the scent is remembered. what steps occur to form this memory? place the event in order they occur in the nose and the brain.
Long-term memory formation is a highly dynamic process involving multiple temporal and functional stages including encoding consolidation retrieval storage and reconsolidation.
Scientists believe that smell and memory are so closely linked because the anatomy of the brain allows smell signals to travel to the limbic system so quickly. Experts say that memories associated with smells tend to be older and less thought-provoking, which means the memories are very vivid.
Smells are processed by the olfactory bulb a structure at the front of the brain that sends information to other areas of the body's central command center for further processing. Scents reach directly into the limbic system, which includes the amygdala and hippocampus regions associated with emotion and memory.
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Based on the information in the table, which of the following is the most likely empirical formula of the ionic compound that forms between element X and fluorine?
Based on the information in the table, the most likely empirical formula of the ionic compound that forms between element X and fluorine is X₂O₃ and is denoted as option C.
What is Ionization energy?This is referred to as the minimum energy which is required to remove a loosely bound electron from a gaseous atom etc and it is also measures how capable an element is in entering into a chemical reaction.
From the table given, we can deduce that the element X most likely has three valance electrons. This is because there is a huge difference between the first three ionization energy and the fourth ionization energy.
The three valance electrons in the outermost shell will be lost to create a stable octet structure. The loss of three valance electrons will create a +3 charge.
Compounds have a net electric charge of zero, X has a charge of +3 and Oxygen has a charge of -2.
So n× +3 + m × −2 = 0
The Least Common Multiple of 3 and 3 is 6.
2 × + 3 = + 6 therefore n = 2
3 × − 2 = −6 therefore m = 3
2× + 3 + 3 × − 2 = 0
Therefore the formula is X₂O₃
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acetylene c2h2 gas is often used in welding torches because of the very high heat produced when it reacts with oxygen o2 gas, producing carbon dioxide gas and water vapor. calculate the moles of carbon dioxide produced by the reaction of 0.055mol of oxygen. be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits. .083mol
The moles of carbon dioxide produced by the reaction acetylene of 0.055mol of oxygen is 0.044 mole.
Acetylene is a chemical compound with the formula C₂H₂ and structure H−C≡C−H. it is a hydrocarbon and the best alkyne. This colorless fuel is widely used as a gas and a chemical constructing block. it is unstable in its pure form and consequently is usually handled as a solution.
The balanced chemical reaction is,
2C₂H₂ (g) + 5O₂ (g) ===> 4CO₂ (g) + 2H₂O (g)
2 C2H2 (g) + 5 O2 (g) --------> 4 CO2 (g) + 2 H2O (g)
2 mol acetylene --------> 4 mol CO2
?? C2H2 ------------> 0.055 mol Co2
moles of acetylene = 0.055 x 2 / 4
= 0.0275 mol
moles of acetylene = 0.028 mol
5 mole of oxygen produced = 4 mole of CO₂
0.055mol of oxygen = 4/5 × 0.055
= 0.044 mole
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How many molecules are in 25 grams of C6H1206?
pls help 100 PTS worksheet attached
Answer:
It wont let me download the pdf
Explanation:
Answer:
I can’t download it
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