Answer: Aberham Lincon was an basketball player for the brick walls and then got traded to the wasthiton bottle caps then I will go to the bus stop
Explanation:
Model 1 - Chemical Reactions
CL + 2NaBr
2(g)
(aq)
2NaCl + Br
(aq)
1. Label the reactants and the products.
2. What does the number 2 in Cl, mean?
2
Click to add text
3. What does the 2 in front of 2NaBr mean?
Click to add text
Reactant
2(1)
Product
1. 1st reaction:reactant, 2nd reaction:product.
2. 2 in cl2 means that chlorine is diatonic
3. 2 in front of NaBr shows that there are 2 moles of NaBr
2 Al + 3CuCl₂ --> 2 AlCl3 + 3 Cu
How many grams of Al do you need to make 15 g of AICI3? Remember
to round all molar masses to whole numbers.
(round to the hundredths place)
Molar mass: According to the answer you need 3.0 g of Al to make 15 g of AlCl3.
What is Molar mass?Molar mass is the mass of a given substance (chemical element or compound) divided by the amount of substance in moles. It is usually expressed in grams per mole (g/mol). Molar mass is an important concept in chemistry, as it is used to calculate the mass of a substance from the amount of moles of the substance. It is also used to calculate the amount of moles of a substance from the mass of the substance. Molar mass is also used to calculate the density of a substance, as well as the molar volume of a substance.
Molar mass of Al = 27 g/mol
Molar mass of AlCl3 = 133 g/mol
To make 15 g of AlCl3, you need 15/133 = 0.112 mol of AlCl3.
To make 0.112 mol of AlCl3, you need 0.112 mol of Al.
Therefore, you need 0.112 mol of Al x 27 g/mol = 3.0 g of Al.
Therefore, you need 3.0 g of Al to make 15 g of AlCl3.
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Consider the following intermediate chemical equations.
3 equations. 1: upper C solid plus upper o subscript 2 gas right arrow upper C upper O subscript 2 gas Delta H 1 equals negative 393.5 kilojoules. 2: 2 upper C upper O gas plus upper O subscript 2 gas right arrow 2 upper C upper O subscript 2 gas Delta H 2 equals negative 566.0 kilojoules. 3: 2 upper H subscript 2 upper o gas right arrow 2 upper H subscript 2 gas plus upper O subscript 2 gas delta H 3 equals 483.6 kilojoules.
The overall chemical equation is Upper C (s) plus upper H subscript 2 upper O (g) right arrow upper C upper o (g) plus upper H subscript 2 (g).. To calculate the final enthalpy of the overall chemical equation, which step must occur?
Reverse the first equation, and change the sign of the enthalpy. Then, add.
Reverse the second equation, and change the sign of the enthalpy. Then, add.
Multiply the first equation by three, and triple the enthalpy. Then, add.
Divide the third equation by two, and double the enthalpy. Then, add.
Specific heat capacity of a substance is the amount of heat required to raise the temperature by one degree Celsius of one gram of a substance. Therefore, 485.9 kJ is the overall enthalpy of the reaction.
What is Enthalpy?Enthalpy term is basically used in thermodynamics to show the overall energy that a matter have. Mathematically, Enthalpy is directly proportional to specific heat capacity of a substances.
Reverse the first equation: upper C solid plus upper o subscript 2 gas right arrow upper C upper O subscript 2 gas ΔH1=-393.5 kJ
Reverse the second equation:2 upper C upper O gas plus upper O subscript 2 gas right arrow 2 upper C upper O subscript 2 gas ΔH2=-566.0KJ
Reverse the third equation: 2 upper H subscript 2 upper o gas right arrow 2 upper H subscript 2 gas plus upper O subscript 2 gas ΔH2=-483.6 kJ
ΔHrxn = 393.5 kJ + 566.0 kJ + (-483.6 kJ)
= 485.9 kJ
Therefore, 485.9 kJ is the overall enthalpy of the reaction.
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What is the lewis structure of I3^(-)?
The triiodide ion, with its I3- Lewis structure, is a linear anion ion with sp3d hybridization, trigonal bipyramidal geometry, and the acquisition of a linear form.
What makes up an ion?An ion is an atom or group of atoms with just an electric charge. The word for positive-charged ions is cations. Ions which have a negative surface charge are referred to as anion. The body includes ions of several common substances.
Which definition best fits an ion?A charged molecule or atom is known as an ion. Because there are more electrons than protons in an atom or molecule, it is charged. Depending upon whether the amount of an atom's electrons is more or less than the number or protons in the atom, an atom can develop a positive charged or a negative charge.
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What balanced chemical reactions does carbon engineering involve?
What are some examples of balanced chemical reactions that involves carbon engineering?
The carbon engineering technologies forward the carbon dioxide capturing methods. The first step involved in the air contactor is given below:
[tex]\rm CO_{2} + 2 KOH \rightarrow H_{2}O + K_{2}CO_{3}[/tex]
What is carbon engineering ?Nowadays evolution of greenhouse gases such as carbon dioxide is causing serious issues such as global warming. Industries and factories are uncontrollably release these gases to the atmosphere.
Carbon engineering designs the techniques for direct capture of carbon dioxide. The methods include an air contactor with the reaction given above and a pelletizer where, the KOH and calcium carbonate produces calcium hydroxide.
A calcinator decomposes the calcium carbonate forming the carbon dioxide which is captures.
[tex]\rm CaCO_{3} \rightarrow CO_{2} + CaO[/tex]
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A chemical reaction has reached equilibrium when
a. the concentrations of reactants and products are equal,
b. the rate of the forward reaction equals the rate of the reverse reaction,
c. all reactants have been converted to products,
d. all products have been removed from the reaction mixture.
A chemical reaction has reached the equilibrium when b. the rate of the forward reaction equals the rate of the reverse reaction.
The chemical reaction is said to be in the equilibrium when the rate of the forward reaction is equals to the rate of the backward reaction. . The equilibrium is the state of the balance. The chemical equilibrium is the state of the reaction when the the rates of the forward and the rates of the backward reaction s are equal.
forward
A + B ⇄ C
backward
The chemical equilibrium are of the two types :
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Can someone solve this for me, please ?
5. The formula for a substance is D, and its molar mass is 30 g. A student is given 150 g of the substance and is asked how many atoms are in the sample. She says there are 5 times Avogadro's number (6.022 x 102) of atoms in her sample. The student is in error, identify her error and explain what the correct answer should be.
Answer: Example: Find the molecular of the water molecule. Solution: The formula of the water molecule is H₂O. The atomic mass of hydrogen = 1 amu. The atomic mass of oxygen = 16 amu. Molar mass of water = 2 *1 + 16 = 18 amu. Example: What will be the relative molar mass of the hydrogen molecule. Solution: Hydrogen molecule represented by H₂.
hope this works
What is the percent composition of carbon in sucrose?
What is the percent composition of hydrogen in sucrose?
What is the percent composition of oxygen in sucrose?
Sucrose = C12H22O11, Molar Mass = 12.01(12)+1.01(22)+16.00(11) = 342.34 g/mol
Answer:
Percentage Composition from Formulas. A more complex example is sucrose (table sugar), which is 42.11% carbon, 6.48% hydrogen, and 51.41% oxygen by mass.
Explanation:
how much heat is needed to raise the temperature of 100 g of water from 10°C to 20°C
Answer:
Ainsi pour transformer, sous la pression atmosphérique, une masse de 1 kg d'eau pris à 20 °C en vapeur, l'énergie à fournir est égale à l'énergie fournie pour passer de 20 °C à 100 °C à l'état liquide soit 334 kJ puis à celle requise lors de la vaporisation à 100 °C soit 2256 kJ donc au total 2590 kJ.
Explanation:
Classify these orbital descriptions by type. Atomic orbital Hybrid orbital Molecular orbital p d f P sp^2 sp^3 sp^3d sigma2s pi2p S
The concept used to solve this problem is based on type of orbitals. The orbitals can be atomic, molecular and hybrid.
The atomic orbitals are the areas of space around the nucleus of an atom where an electron is expected to be found. The hybrid orbitals are the orbitals which are formed by mixing of atomic orbitals. The molecular orbitals are the orbitals which have bonding and antibonding orbitals.
Step: 1
The orbitals s, p, d and f are atomic orbitals. The electrons can be find in atomic orbitals. the electrons of an atom can be filled in s, p, d and f orbitals
Step: 2
The orbitals sp,sp2,sp3 and sp3d are hybrid orbitals. The hybrid orbital is formed by combination of atomic orbital.
Step: 3
The molecular orbitals are σ2s and π2p. The molecular orbitals are made up of bonding and antibonding orbitals.
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How much silver can you make with 50 grams of AgCl?
50 grams of AgCl (Silver Chloride) will produce 39.2 grams of silver when the AgCl is processed.
What is Silver Chloride?Silver chloride (AgCl) is an inorganic compound composed of silver and chlorine. It is a white powder or crystalline solid that is insoluble in water, alcohol, and other organic solvents. Silver chloride is used mainly in photography and in the production of specialized glass. Silver chloride has been used in the past to make silver plating, silver salts and silver jewelry. Silver chloride has been used in various medical treatments, including eye drops and ointments, as an antiseptic and to treat skin disorders.
The process involves reacting the AgCl with either a reducing agent or a disproportionation reaction. The reaction produces Ag (silver) and Cl2 (chlorine gas). The silver produced accounts for approximately 78.4% of the original AgCl mass. Therefore, 39.2 grams of silver can be produced from 50 grams of AgCl.
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The following model was used to show a molecule of methane, or CH4. Describe the number and type of each component of the molecule.
There is only a single carbon atom and four hydrogen atoms in the model.
What is a model?In science, when we talk about a model, we know that what we mean is a representation. It is actually something that stands in for another. We can be able to use a model as a guide that enables us to be able to visualize what the actual molecule would look like.
We can see that in the compound that has been laid out here, we would have about four atoms that are from hydrogen while we would only have one atom from carbon in the compound.
Thus, the blue ball stands for carbon while each of the red balls stand for hydrogen atoms in the model shown.
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An organic synthesis to make the pain reliever acetominophen is supposed to produce 280 kg of product but instead produces 70 kg of waste in addition to the acetaminophen. what is the percent yield?
The theoretical yield in this instance is 280 kg, however the actual yield is only 70 kg. Consequently, the percent yield is calculated as follows: 25% = 70/280 x 100.
How do you find percent yield?We apply the following formula to determine the yield percentage: percent yield = actual yield/theoretical yield x 100.The percentage yield indicates how much product is produced in relation to the maximum mass that may be produced. The percentage of atoms in reactants that go on to generate the intended product is determined by the atom economy of a reaction.The efficiency of a chemical process is gauged by percentage yield. It provides us with information on the percentage of our reactants that effectively converted into a product.Percent yield is a metric that contrasts the amount of product we actually generate with the amount we predict we should produce. There will always be a small amount of product left over after a reaction in a genuine lab. How close we can come is indicated by percent yield.To learn more about yield refer to:
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4. If 13.34 g of an unknown substance has a -40.8 J of heat in cooling from 50°C to 43°C,
what is the specific heat of the unknown?
Answer: c (specific heat capacity) = 0.4369243949 J/g *C
Or with Significant digits: 0.44 ( 2 sig digs because of temperature)
Explanation: So this is a simple calorimetry question, so you have to consider this formula, ΔH = -Q and since Q = mcΔt || Therefore you get this equation ΔH = - (mcΔt). So you want to solve for c, now rearrange. Once you do that, you will end up with c = - (ΔH/ -m · -Δt)
Now Plug in the numbers
Then you will get 0.44!
Hope that helped and remember significant digits! Good luck!
If chemicals are transferred to secondary containers, the secondary containers must be labeled with the chemical's. True or False?
TRUE , Auxiliary containers must be labeled, excluding a few circumstances. LABEL IT IF If a secondary container was transportable, for instance, you are frequently exempt from label requirements.
What does an OSHA secondary container mean?Chemicals are typically transferred from primary container to secondary containers while within the workplace. These smaller containers can be spray bottles, containers, aliquots, or jars. OSHA states that secondary containers must adhere to the labeling specifications.
What is required for a secondary container?The identification of the product's hazardous substances and any physical, health-related, nor environmental risks that may be posed by its constituent parts are the two pieces of information that must be provided on the secondary labels.
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Please answer BOTH questions! Many thanks.
The Born -Haber cycle is used to find out the lattice energy and formation enthalpy of a reaction from its individual steps. The total energy of the cycle is zero.
What is Hess law ?According to Hess law, we can split a reaction into several steps. each steps involves the phase transitions, ionization of constituent elements.
The energy required form a solid compound from its constituent elements in gaseous state is called the lattice energy of the compound. Here the formation of KBr from gaseous K and Br is given. Thus the enthalpy change is called lattice energy.
The lattice energy plus the formation energy is called the total energy in the reaction. Where, the enthalpy change of the cycle is zero. The Born -Haber cycle of the given reaction include first reaction with the phase transition of each elements and their ionization.
The ionized atoms combine together to form the product, which is written as the overall reaction in the top.
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how many moles of sodium acetate must be added to 500ml of 0.25M acetic acid solution to produce a buffer with a pH of 4.94? the pKa of acetic acid is 4.74.
To make the buffer solution, 0.198 moles of sodium acetate are required (from which the conjugate base will be formed). The correct response is (C) 0.198 moles.
What in chemistry is a mole?A highly important unit of measurement used by chemists is the mole. A mole of anything means you have 602,214,076,000,000,000,000,000 of that thing, just like a dozen eggs equals twelve eggs. Chemists use moles to measure incredibly small substances like atoms, molecules, and other particles.
How can I figure out moles?How many moles of a chemical are there? The substance's weight should be determined. See a periodic table to find its atomic or molecular mass. Subtract the weight from the mass of the atoms or molecules.
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What does a metal combine with in an
ionic compound?
An ion has 13 electrons, 12 protons, and 14 neutrons. What is the mass of the ion?
a. 14 u
b. 25 u
c. 26 u
d. 27 u
The mass of an ion that has 13 electrons, 12 protons, and 14 neutrons is 26 u (option C).
What is mass number?Mass number of an element is the total number of protons and neutrons in an atomic nucleus.
The number of protons and electrons of an atom is the number of positively charged and negatively charged subatomic particles in an atom respectively.
According to this question, an ion has 13 electrons, 12 protons, and 14 neutrons. The mass number can be got by summing the number of neutrons and protons in the atom as follows:
mass no = 12 + 14 = 26u
Therefore, 26 u is the mass of the ion described in this question.
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what is created when the e-liquid or tobacco is heated in a vaping device?
When the e - liquid or the tobacco is heated in a vaping device , it will produces the aerosol. The user inhale the aerosol in their lungs.
The e - liquid or the tobacco when heated too much it will produces the aerosol. The e - cigarettes results in the production of the aerosol , when it heated too much. The liquid it contain is nicotine. The drugs cigarettes , the cigar and tobacco , flavoring helps to produces the aerosol.
Thus, when the e - liquid is heated too much it will results in the production of the aerosol.
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A student accidentally added 15 mL of HCl to the eudiometer instead of 10 mL. What effect would this have on the volume of hydrogen gas produced? Would the calculated molar volume of hydrogen be too high, too low or not affected as a result of this error? Explain.
Balanced Equation: 2HCl + Mg ---> H2 + MgCl2
The calculated amount of the hydrogen that is produced would be too low.
What effect would this have?We should know that the question that we have here is going to so much border on the stoichiometry of the reaction. In this case, we are having the fact that A student accidentally added 15 mL of HCl to the eudiometer instead of 10 mL.
We know that the amount of the hydrogen that is produced would depend on the amount of the acid that is added and if an excess amount is added, the calculated amount would be too low because of this error.
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Help me with this chemistry question please and thank you
Yes it is True.
Because Zinc(Zn) is Highly reactive than Hydrogen(H) that is why Zn can easily replace Hydrogen in HCl and form ZnCl2.
Complete the electrophilic addition mechanism below.
Box1: Add the missing curved arrow notation.
Box 2: Add the missing curved arrow notation, lone pair electrons, and non-zero formal charges.
Box3: Draw the organic product with all applicable lone pair electrons and non-zero formal charges.
The electrophilic addition reaction is the reaction in which electrophile attack the substrate. The compound containing double or the triple bond broken into the sigma bond.
The electrophilic addition reaction in which the compound that contains the double or the triple bond , broken in to the sigma bond. The some of the example of the electrophilic reaction of the alkene is given below :
CH₂ = CH₂ + HX ----> CH₃ - CH₂X
CH₂ = CH - CH₃ + HX ----> CH₃ - CHX - CH₃
The proton H⁺ will make a bond with carbon atom of the carbon = carbon double bond. The halogen ion forms the bond with the intermediate carbocation produces the final product.
The question is incomplete, i gave general answer according to my knowledge.
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You have 1.00 mol/L solution of sulfuric acid. Describe how you would use this solution to make 250.0mL of a 0.500 mol/L solution of sulfuric acid.
*Hint: Your answer should include more than just a calculation.
To make 250.0 mL of something like a 0.500 mol/L sulfuric acid solution, 0.125 L of a 1.00 mol/L sulfuric acid solution is needed.
What occurs when sulfuric acid is touched?can cause blindness and irritate & irritate the skin and the eyes. Exposures may result in pulmonary edema, a genuine condition when fluid builds up in the lungs. Headache, nauseousness, and vomiting can all result after exposure.
What is the primary use of sulfuric acid?Another important ingredient in the chemical process industries is sulfuric acid. It is most frequently employed in the production of fertilizer, but it is also crucial for the processing of minerals, oil, wastewater, and chemicals. H2S04, often known as sulfuric acid, is a corrosive chemical that harms your skin, eyes, teeth, & lungs. Extreme exposure can be fatal.
n1 = n2
CM = n / V
n = CM x V
CM1 x V1 = CM2 x V2
1.00 x V1 = 0.500 x 0.2500
V1 = (0.500 x 0.2500) / 1.00
V1 = 0.125 L
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Which gas is a molecule with 14 protons?
Nitrogen (N2) is a molecule that has 14 protons.
Nitrogen is a colorless, odorless, and tasteless gas that makes up about 78% of the Earth's atmosphere. Nitrogen is an important component of many compounds, including proteins, DNA, and RNA, and is essential for life on Earth.
Nitrogen gas is also used in a variety of industrial applications, including the production of fertilizers, explosives, and the preservation of food. Nitrogen is a non-metallic, diatomic gas that exists in two stable isotopes, 14N and 15N.
Nitrogen gas is relatively unreactive, due to the strong triple bond between the two nitrogen atoms in a nitrogen molecule (N2). However, under certain conditions, such as high temperatures or the presence of catalysts, nitrogen can react with other elements to form compounds such as ammonia (NH3), nitric oxide (NO), and nitrous oxide (N2O).
In the Earth's atmosphere, nitrogen plays a key role in the nitrogen cycle, a process by which nitrogen is converted between different chemical forms. Nitrogen gas is converted to ammonia by nitrogen-fixing bacteria, and then to nitrite and nitrate by microorganisms in the soil.
Overall, Nitrogen is a very important element in our planet and many industrial processes.
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A gas at a pressure of 1 atm is in a
sealed 1.0 L container. What happens
to the pressure when the
temperature is reduced to half of the
original amount?
The pressure of a gas is directly proportional to its temperature. Hence, as temperature decreases pressure decreases. Therefore, option D is correct.
What is Gay- Lussacs law?
According to Gay- Lussacs law at constant volume, the pressure of a gas is directly proportional to the temperature.
Hence, P/T = constant.
Let P1 and T1 be the initial pressure and temperature and P2, T2 be the final quantities, then
P1/T1 = P2/T2
Given P1 = 1 atm
T1 = x ° C
T2 = x/2° C
Then P2 = P1 T2/T1
P2 = 1 × x/2° C / x° C
= 1/2 atm
That is one half of the initial pressure.
Therefore, the pressure of the gas reduces to half when temperature is reduced to half. Thus, option D is correct.
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The is all
the wavelengths of electromagnetic radiation.
• Radio waves
• Microwaves
• Infrared radiation
• Visible light
• Ultraviolet light
• X-rays
• Gamma rays
Electromagnetic radiation can be categorized into seven different groups. It consists of radio waves, microwaves, infrared, visible light, ultraviolet light, X-rays, and gamma rays.
The wavelengths of each of them are as follows:
Gamma rays: < 10⁻¹² m. It is usually used in the medical field
X-rays: 1 nm- 1 pm. It is used in a number of fields like medicine and airport security.
Ultraviolet: 400 nm- 1 nm. Sun is the main source of UV rays
Visible light: 750 nm- 400 nm. This is visible to our eyes.
Infrared light: 25 μm – 2.5 μm. It is mainly used in night vision goggles.
Microwaves: 1 mm – 25 μm. It is used in microwave ovens and other cooking utensils.
Radio waves: > 1 mm. It captures the waves transmitted by radio stations
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Give the hybridization for the O in OF 2.
a. sp(^3)d
b. sp(^3)d(^2)
c. sp^3
d. sp^2
e. sp
It is a useful ability to be able to rapidly assess whether the atom is the hybridization again for O in OF 2, as the hybridization hypothesis is sometimes perceived as a convoluted and lengthy notion. sp^2
What does hybridization look like in practice?The process chemical hybridization known as sp3 hybridization involves the mixing and recasting of the 1s and 3p electron shells of the same element to create new hybrid orbitals with the same energy, symmetric, and fixed orientation in space. The molecule of methane is one example.
How and why is hybridization important?Atomic orbitals are thought to combine to generate freshly hybridized orbitals through the process of hybridization, which then affects the geometry of molecules and their bonding characteristics. Additionally, hybridization expands the valence
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Complete the table below by writing the symbols: ionic compound cation anion NaCl Na^+ Cl^- CrCl4 Cr^4+ Cl^- NH,Br NΗ4^+ Br^- Cu(OH)2 Cu^2+ OH^- Cos
Ionic compound Cation Anion
NaCl Na^+ Cl^-
CrCl4 Cr^3+ Cl^-
NH4Br NH4^+ Br^-
Cu(OH)2 Cu^2+ OH^-
CoS Co^2+ S^2-
Please note that in CrCl4 the cation is Cr^3+ not Cr^4+
In the table above, the first compound is NaCl. The sodium cation has a positive charge of +1 and the chloride anion has a negative charge of -1, which gives the compound a neutral charge.
The second compound is CrCl4. The Chromium cation has a positive charge of +3 and the chloride anion has a negative charge of -1, which gives the compound a neutral charge as well.
The third compound is NH4Br. The ammonium cation has a positive charge of +1 and the bromide anion has a negative charge of -1, which gives the compound a neutral charge.
The fourth compound is Cu(OH)2. The Copper cation has a positive charge of +2 and the hydroxide anion has a negative charge of -1, which gives the compound a neutral charge.
Finally, the fifth compound is CoS. The Cobalt cation has a positive charge of +2 and the sulfide anion has a negative charge of -2, which gives the compound a neutral charge.
It's important to note that the charge of the cations and anions must match for the compound to be neutral, if not the compound will have a net charge.
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im crying guys I dont understand
The following data was collected when a reaction was performed experimentally in the laboratory.
Reaction Data
Reactants Products
Fe2O3 Al Al2O3 Fe
Starting Amount in Reaction 3 moles 5 moles ? ?
Determine the maximum amount of Fe that was produced during the experiment. Explain how you determined this amount.
The experiment will only result in a maximum of 280 grams of iron (Fe) being produced.
Iron is what?The mineral iron is essential to our bodies for a number of processes. As an illustration, iron is a constituent of hemoglobin, a chemical that transports oxygen from our lungs to each and every tissue in our bodies. It helps our muscles get oxygen and store it. Iron is also present in many other enzymes and enzymes. Your body needs iron in the right amount.
How does the body use iron?Another form of protein called hemoglobin, which is present throughout red plasma cells and carries the oxygen from your lungs to every of the body, contains a sizable quantity of iron. If the body doesn't have enough iron, it won't produce enough red blood cells to deliver oxygen, which leads to fatigue.
equation of the reaction:
Fe₂ O₃ + 2Al --> 2Fe + Al₂ O₃
mole ratio of Fe₂ O₃ to Al = 1:2
5 moles Fe = 5 x 56
= 280 grams
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