Answer:
The chemical compound responsible for ocean acidification in the open oceans of the world is carbon(II) oxide
The chemical compound responsible for ocean acidification in the open oceans of the world is carbon(II) oxide.
What is ocean acidification?Ocean acidification is the global decrease in seawater pH caused by the oceans' extensive uptake of atmospheric carbon dioxide (CO2) in the atmosphere. Ocean acidification is primarily caused by the Earth's atmosphere being overburdened with massive amounts of CO2, which is created by automobiles, industrial processes, and agricultural activities.
A third to a half of the CO2 produced into the atmosphere by human activity since the start of the Industrial Revolution, or around 1750, is being absorbed by the oceans. Scientists believe that at that time, seawater's average pH decreased between 8.19 to 8.05, representing a 30% increase in acidity. The chemical compound responsible for ocean acidification in the open oceans of the world is carbon(II) oxide.
Therefore, the chemical compound responsible for ocean acidification in the open oceans of the world is carbon(II) oxide.
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consider a situation in which you analyze a mixture of the starting alcohol and the alkene product of an elimination reaction using tlc. if you used a reverse phase tlc plate, which compound would have the higher retention factor? group of answer choices the alkene
Alcohol would have the higher retention factor .
What is Alcohol ?A molecule that can be found in alcoholic beverages like beer, wine, and liquor. Additionally, it can be discovered in several medications, mouthwashes, home goods, and essential oils. It is produced through the chemical process of fermentation, which makes use of yeast and sugar.
The four different forms of alcohol are rubbing, isopropyl, denatured, and ethyl. Ethyl alcohol, commonly known as ethanol or grain alcohol, is the one that we are most familiar with and adore. It is produced by fermenting sugar and yeast and is a component of beer, wine, and alcoholic beverages.Alcohol found in beverages is known as ethanol. It is created when the carbohydrates in grains, fruits, and vegetables are fermented by yeast. For instance, the sugar in potatoes is used to make vodka and the sugar in grapes to make wine.To know more about Alcohol please click here ; https://brainly.com/question/947751
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which one of the following salts, when dissolved in water, produces the solution with the lowest ph? a) alcl3 b) nacl c) mgcl2 d) nh4cl
AlCl3 is the answer.
As strong acid-strong base salts, NaCl and MgCl2 are both neutral.
Since NH4Cl is a weak base-strong acid salt, it is also acidic. AlCl3 is, nevertheless, a stronger acid than NH4Cl.
Neither acids nor bases can be found in neutral substances. Accordingly, neutral substances have an equal number of these ions. An acid has hydrogen ions, a base has hydroxyl ions, etc. Water is the most typical example of a neutral substance. Both acidic and basic properties are absent from water.
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2. What substances make up water?
The higher the frequency of light, the ___ its wavelength and the ___ its energy.
a. longer, lower
b. longer, higher
c. shorter, lower
d. shorter, higher
Answer:
c
Explanation:
how would you observe the spectra of elements with higher ionization energies such as hydrogen or helium?
If a hydrogen atom could have any value of energy, then a continuous spectrum would have been observed, similar to blackbody radiation.
What is ionization energy ?
Ionization energy (also called ionization potential) is the amount of energy required to remove an electron from an isolated atom or molecule in chemistry and physics. There is an ionization energy for each successively removed electron. However, the ionization energy associated with the removal of the first (most loosely held) electron is most commonly used.
The ionization energy of a chemical element, expressed in joules or electron volts, is usually measured in a discharge tube in which rapidly moving electrons produced by an electric current collide with gas atoms of the element, releasing one of them. will be electronic.
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A car travels 45 km at a speed of 60 km/h. How long does it take the car
to reach its destination?
Answer:
45 mins
Explanation:
it takes 45 minutes long
If you were camping in a rainforest for two days, your presence would cause many changes to the
surroundings. Describe two physical and two chemical changes that could occur as a result of your
experience
Here are 3 alkali metals with physical and chemical similarity.
What is alkali metals?
Alkali metals are come from the fact that when these metals or their oxides dissolved in water.a basic solution results.
Three alkali metals -
1- hydrogen(H)
2-lithium(Li)
3-potassium(K)
physical and chemical similarity of hydrogen -
-it is colourless and tasteless in nature.
-it is a combustible gas but not a supporter of combustion.
physical and chemical similarity of lithium -
-it have a melting point of 180.54
-it is the lightest of all metals,with a density approximately half that of water.
physical and chemical similarity of pottasium -
- this metal is soft and white with a silver lustre.
-it imparts a lavender colour to a flame, and it's vapour is green.
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assume that coal can be represented by the chemical formula c135h96o9ns . if 2.00 tons of coal is burned, what mass of nitrogen in the form of nox gases, is produced by this combustion?
If 2.00 tons of coal is burned, then the mass of nitrogen in the form of nox gases, is produced by this combustion is 400134 g of nitrogen.
The chemical reaction equation can be written as
C135H96O9NS + 156O2 ------- 135CO2 + 48H2O + NO + SO2
Mass of 2.0 tons of coal in gram = 1.814 × 10^(6) g
Molar mass of C135H96O9NS can be calculated as = 135(12) + 96(1) + 14 + 32 = 1904 moles of coal
Now, number of moles of coal burned = 1.814 × 10^(6) g / (1906 g/mol) = 952.7 moles of coal
If 1 mole of coal produced 1 mole of NO
Total 952.7 moles of coal produced 952.7 moles of NO
Mass of NO can be calculated as
Mass of NO produced = 952.7 × 30 = 28581 g
1 mole of NO = 30 g of NO
Thus, 14 g of nitrogen is contained in 30 g of NO
Let xg of nitrogen is contained in 28581 g of NO
Then,
x = 14 × 28581 = 400134 g of nitrogen.
If 2.00 tons of coal is burned, then the mass of nitrogen in the form of nox gases, is produced by this combustion is 400134 g of nitrogen.
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1.00 L aqueous solution containe nod 5.80 g of sodium hydroxide, NaOH. What was the pH of the solution at 25°C? (Hint: strong acid and strong base titration, use limiting reactant)
The pH of the solution is 13.16.
What is the pH of the base?We know that the pH has to do with the concertation of the hydrogen ions that we have in the solution. We have to first obtain the concentration of the hydroxide ions and then use that to obtain the pH of the solution accordingly.
Number of moles of NaOH = 5.80 g/40 g/mol = 0.145 moles
Concentration of the solution = 0.145 moles/1 L = 0.145 M
pOH = - log( 0.145 M)
= 0.84
pH = 14 - 0.84
= 13.16
We can get the pH of the solution as 13.16.
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the same physical property that helps drive the reaction to completion can also stall out the reaction before it starts. what do we do in the procedure that helps minimize this concern?
Physical characteristics are those that can be seen without affecting a substance's identity.
Physical characteristics are therefore those that can be seen without affecting a substance's identity.
What is physical property ?Any measurable characteristic whose value describes the condition of a physical system is referred to as a physical property. A system's transitions between fleeting states can be described by changes in its physical attributes. Observables are a term used to describe physical characteristics. These attributes are not modal.
Color, hardness, malleability, solubility, electrical conductivity, density, melting point, and boiling point are examples of the physical characteristics of matter. The hue of the elements does not differ much from one element to the next.
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play with the simulation to determine: a) which particles affect the stability of the atom? b) which particles do not affect the stability of the atom?
a) Neutrons or protons are the particles that have an impact on the stability of the atom.
b) Electrons are the particles that have no impact on the stability of the atom.
When an element's atoms have excess neutrons or protons, the extra energy produced in the nucleus causes the atom to lose its equilibrium or become unstable.
Whether or not an atom's outermost shell is filled with electrons determines how stable the atom is. The molecule is stable if the outer layer is full. To attain stability, vacant outer shell atoms often form chemical interactions with other atoms.
Radioactivity is the capacity of some unstable atoms to spontaneously release nuclear radiation, often in the form of alpha and beta particles associated with gamma rays. The nucleus of an atom might become unstable if there are too many neutrons or protons present.
By ejecting other particles, such as neutrons and protons, or by emitting radiation in a variety of ways, a radioactive atom will attempt to become stable. Thus, the atom's electrons are the only internal particle that has no impact on the atom's stability.
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what is the real gas pressure exerted by 1.00 mol of o2 at 300. k in 2.41 l if the ideal pressure is 10.0 atm?
the real gas pressure for above question was 91.4atm
what is van der waals equatio?
The Van der Waals equation (or Van der Waals equation of state) is an equation of state used in chemistry and thermodynamics that extends the ideal gas law to take into account the effects of interactions between molecules in a gas as well as accounting for the finite size of the molecules.
The ideal gas law views gas molecules as point particles that interact only with their surroundings and not with one another, which means that when they collide, they do not occupy any space or change their kinetic energy.
The volume V occupied by n moles of any gas has a pressure P at a temperature T determined by the following relationship, according to the ideal gas law, where R is the gas constant:
PV=nRT
(pxn2a/v2) (v-nb)=nRt
p 10x1.36/2.41x2.41-10x0.0318
p 13.6/2.41x2.092
nRt=p2.69
10x0.08206x300/2.69
=91.4atm
therefore the real gas pressure =91.4atm
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a gas mixture of xe, ne, and ar has a total pressure of 12.20 atm. what is the mole fraction of xe if the partial pressures of ne and ar are 2.10 and 4.50 atm, respectively?
6.6 is the mole fraction of xe if the partial pressures of ne and ar are 2.10 and 4.50 atm, respectively.
Why is partial pressure called?The idea of partial pressure is driven by the fact that each individual gas contributes to the overall pressure in a given proportion, which corresponds to its partial pressure. In order to characterize all the pieces, it is essentially equivalent to taking a % or proportion of the whole.
Briefing:The total pressure is equal to the sum of the individual pressures, according to Dalton's law.
Ptotal = total pressure of gases = 12.20 atm
Pne = partial pressure of ne = 2.10 atm
Par = partial pressure of ar = 4.50 atm
Pxe = partial pressure of xe = ?
putting in the values we get:
12.20 = 2.10 + 4.50 + Pxe
Pxe = 5.6
We employ Dalton's law to determine the solution's vapor pressure, which is:
Ptotal = (Pxe + Xxe)
We are given:
Pxe = partial pressure of xenon = 5.6
Xxe = mole fraction of xenon = ?
Using the values in the aforementioned equation, we get:
12.20 = (5.60 * Xxe)
Xxe = 6.6
The mole fraction of Xe is 6.6 as a result.
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why does recovered singal have 3 or 4 volatge level instead of 2 levels as you would excpect for a digtal signal
The digital signal is a signal that encodes data as a series of discrete values; at any one moment, it can only take on a maximum of one of a finite set of values.
A digital signal, in contrast, represents continuous values; it always reflects a real number within a continuous range of values. Information is represented by simple digital signals in discrete analogue level bands. The same information state is represented by all levels in a band of values. The signal in the majority of digital circuits can have two legitimate possible values; this is known as a binary signal or logic signal.
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A typical Heliox mixture contains He at a partial pressure of 0.75 atm and O2 at a partial pressure of 0.35 atm. What is the total pressure of the Heliox mixture?
Considering the Dalton's partial pressure, the the total pressure of the Heliox mixture is 1.1 atm.
Dalton's partial pressureDalton's law states that the total pressure of a gas mixture is equal to the sum of the pressures that each gas would exert if it were alone:
[tex]P_{T}[/tex]= P₁ +P₂ + ... + Pₙ
where n is the amount of gases present in the mixture.
This relationship is due to the assumption that there are no attractive forces between the gases.
Total pressure of the Heliox mixtureIn this case, the total pressure of the Heliox mixture is calculated as:
[tex]P_{T} =P_{He} +P_{O_{2} }[/tex]
Being:
[tex]P_{He}[/tex]= 0.75 atm[tex]P_{O_{2} }[/tex]= 0.35 atmthe total pressure of the Heliox mixture is
[tex]P_{T}[/tex]= 0.75 atm + 0.35 atm
[tex]P_{T}[/tex]= 1.1 atm
Finally, the total pressure is 1.1 atm.
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explain why the water strider is able to land on the surface of the water. use your knowledge of intermolecular forces and draw a particle diagram to justify your explanation
Water striders use the high surface tension of water and long, hydrophobic legs to help them stay above water.
Surface tension:
The tension of the surface film of a liquid is caused by the attraction of the particles in the surface layer by the bulk of the liquid, which tends to minimize surface area.
The force responsible for surface tension is the cohesive force that is present between the molecules of the liquid, the surface tension of water is high this is just because there is a hydrogen bond present between the molecules of water.
As we know that the legs of a water strider are long and slender, allowing the weight of the water strider's body to be distributed over a larger surface area.
Therefore the water strider can land on the surface of the water because of the surface tension of the water.
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what is math and science?
Mathematics and science are formal and exact sciences that are based on logic.
What is math and science?Mathematics is an exact science that studies the properties and relationships between entities through geometric figures and arithmetic with numbers. Mathematics then looks for common patterns that could end up leading to a theory and, if it is verifiable and true, end up being a law, such as the Pythagorean law for example.
In terms of science, it is the comparable knowledge that has been studied, explained, and has helped predict social and natural phenomena in our universe over time. This has been done and verified through the scientific method, making it then a verifiable and true logic.
Therefore, we can confirm that mathematics and science are formal and exact sciences that are based on logic.
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the conversion of carbon dioxide to carbonic acid can be catalyzed by carbonic anhydrase with an activation energy of 85.6 kj mol-1at 25c. by what factor will the rate constant increase if the temperature is raised to 37c?
7.133 is the rate constant increase if the temperature is raised to 37c.
factor=rate(T2)/rate(T1) .
The proportionality constant (k) that links the pace of the reaction to the concentrations of reactants is known as the specific rate constant. For any chemical reaction, the rate law and the particular rate constant must be ascertained through experimentation. Temperature affects the rate constant's value.a chemical reaction in which two or more substances interact and change into new ones, or where one substance transforms into another.
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what causes the lines in these spectra? why are the colors of the lines different? suggest a reason for the observation that the spectrum of calcium is more complicated than the spectrum of hydrogen.
Transitions of electrons within atoms or ions form spectral lines at different rungs which leads to emission of lines of different colors. Spectrum of calcium is more complicated than the spectrum of hydrogen because calcium atom have more electrons than hydrogen.
What are spectral lines?A spectral line in an otherwise smooth and continuous spectral is a dark or bright line resulting from the emission or absorption of light in a narrow frequency range compared to adjacent frequencies. Spectral lines are frequently used to identify atoms and molecules.
The spectral lines arise from electron transitions within an atom or ion. As electrons move toward or away from the nucleus (or ion) of an atom, they release or absorb energy in the form of light (or other radiation).Electrons fall on the lower rung and emit light with the energy of the rung difference. This allows different atoms to emit different colors of light.Calcium has a more complex spectrum. Because calcium has more electrons than hydrogen, there are more possible electronic states and transitions.To know more about spectral lines visit:
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How can you describe carbohydrates
when aluminum (al) reacts with oxygen (o2) in a synthesis reaction, what is the chemical formula of the product? group of answer choices alo2 none of these options al2o3 al3o2
This is a synthesis reaction we're given that aluminium (Al) can react with oxygen gas (O2 to produce aluminium oxide (Al2O3).The balanced chemical equation for this reaction is 4Al(s)+3O2(g)→2Al2O3(s)
When two separate atoms or molecules interact to create a new compound or molecule, the process is known as a "synthesis reaction." The majority of the time, energy is released and an exothermic reaction takes place during a synthesis reaction. An endothermic result is also conceivable, though. When sodium (Na) and chlorine (Cl) are combined, sodium chloride is created. This is an illustration of a synthesis reaction (NaCl). Al2O3 is the chemical formula for the compound of aluminium and oxygen known as aluminium oxide. It is precisely referred to as aluminum(III) oxide and is the most prevalent of various aluminum oxides. Aluminum oxide is utilized for its strength and hardness.
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hydrochloric acid, hcl, is frequently used for titrations, but making a precise molarity of hcl is very difficult. instead, an approximate solution of hcl is made and then analyzed by titration with sodium hydroxide to determine its precise molarity. the titration reaction is hcl naoh nacl h2o. if 26.18 ml of 0.0995 m naoh is required to titrate 25.00 ml of hcl, what is the molarity of the hcl?
The molarity of the HCl 0.104 M
What is molarity?Molarity of a solute is defined as the ratio of number of moles of solute to the volume of solution (L). Solute molarity is sometimes omitted by enclosing the solute chemical formula in square brackets. For example, the concentration of chloride ions in solution can be written as [Cl⁻]. Molarity allows you to convert between the volume of a solution and the moles (or mass) of a solute.
For the given case,
HCl + NaOH --> NaCl + H2O
Since,
M₁V₁ = M₂V₂
M₁ = concentration of NaOH
V₁ = volume of NaOH
M₂ = concentration of HCl
V₂ = volume of HCl
Substitute the given values in the equation mentioned above:
26.18 × 0.0995 = M₂ × 25.00
2.60491 = 25 M₂
M₂ = 0.104 M
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1. what is the impedance of an ac series circuit that is constructed using a 10.0-ohm resistor and a 12.0-ohm inductive reactance and a 7.0-ohm capacitive reactance?
The impedance of an AC circuit with 10 ohm resistor, 12 ohm inductive reactance and 7 ohm capacitive reactance is 11.2 ohm.
What is impedance?
Impedance is the resistance of a circuit to AC which is caused by the combining effects of ohmic resistance and reactance. It is represented by the symbol Z and its unit is ohm. It is a measure of opposition to electric flow.
The impedance of an AC circuit can be calculated by,
Z = [(R^2) + (XL - XC)^2]^1/2
where R = resistance, XL = inductive reactance, XC = capacitive reactance
Z = [(10^2) + (12 - 7)^2]^1/2 = (100 + 25)^1/2 = 11.2 ohm.
Therefore, the impedance of an AC circuit with 10 Ohm resistor, 12 ohm inductive reactance and 7 ohm capacitive reactance is 11.2 ohm.
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A compound of hydrogen, chlorine, and carbon has a simplest formula of CCIH₂. If in one of its molecules there are two carbon atoms, find its molar mass.
Answer:
99 g/mol
Explanation:
2 carbon atoms in one molecule means double all the other atoms
(12*2)+(35.5*2)+(1*4)=99g/mol
22) in the polysaccharide amylose, large numbers of monosaccharides are linked together through . a) alpha 1-4 glycosidic linkages b) beta 1-4 glycosidic linkages c) alpha 1-6 glycosidic linkages d) beta 1-6 glycosidic linkages e) none of the above
In the polysaccharide amylose,a large number of monosaccharides are linked together through alpha 1-4 glycosidic linkages.
Alpha 1-4 linkage is a stored form of sugar in plant. In this carbon atom 1 and 4 of the the two monomers forms a glycosidic bond. Polysaccharides are long chain forms of monosaccharides linked together by glycosidic bonds.A glycosidic bond is a covalent bond that joins a carbohydrate molecule to another group.this bond gives glycogen that is suitable for energy storage.
Amylose is plant starch made from monosaccharide connected through alpha 1-4 linkages.monosaccharides are the simplest form of sugar.from monosaccharides, all carbohydrates are built.
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3. using the 1h nmr spectrum shown below. a) confirm the identity of the compound using the nmr provided. is this consistent with acetophenone (starting material) or the benzoic acid (product)? b) using the table below list the 4 signals shown. include chemical shift in ppm, multiplicity and number of protons. for calculating the number of protons, use the integration curves provided in the nmr and a ruler. c) support your answer in a) using the data obtained from the nmr. explain using the peak(s), or absence of peak(s), that sustain the identity of the compound.
Since 2 2.60 PPM singlet was seen for the /C-CH, Proton, and IHNMR data clearly showed the presence of acetophenone. IHNMR chemical with a multiplicity of 2.60 PPM is singlet, and there are 3 photons in total.
IHNMR chemical with a multiplicity of multiple number of photons of 7.49 to 7.45 PPM and a Proton number of 1. acetophenone number of photons in an IHNMR chemical with a multiplicity of 7.60 - 7.55PPM is multilaterally 2. IHNMR Chemical of multiplicity 7:98 - 7.94 PPM is multiplet no. of Proton is 2. So, Acetophenone chemical will be administered. Only one at proton comparatively shielded opposition and miter will give multiple in the benzene ring according to the IHNMR value of one singlet observed at 2–6 1 PPM. OxfordCryosystems.
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One mitigating strategy for ______________ is______________. I learned that people need to do _____________to mitigate the effects of___________
Answer:
One mitigating strategy for planning and zoning is to protect people and the environment from the nuisance impacts of facilities like landfills, sewage treatment plants and factories through land use planning tools. I learned that people need to Reduce greenhouse gas emissions through their food choices to mitigate the effects of using Renewable energy.
Question 9(Multiple Choice Worth 4 points)
(01.03 MC)
Ô
Object A has a mass of 12 g and a volume of 8 cm³. Object B has a mass of 20 g and a volume of 8 cm³. Which object has a greater density and by how much?
O Object A, by 1 gram per cubic centimeter
O Object A by 8 grams per cubic centimeter
O Object B, by 1 gram per cubic centimeter
O Object B, by 8 grams per cubic centimeter
According to the given statement Object B, by 1 gram per cubic centimeter object has a greater density.
What is density ?The measure of how densely a substance is pressed together is called density. As the weight per unit volume, it meets that definition. The formula for density, denoted by the symbol D, is given as follows: density = m/V, where m denotes the object's mass and V its volume.
Does mass affect density?Mass and volume are intimately linked with density. In reality, it explains the precise nature of the connection between the two. By dividing the mass of an object by its volume, we may get its densities. The mass is said to have a low population density if it has a high volume but a tiny mass.
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30 years ago, 22.5% of the population—45 out of 200 people—were taller than 1.2 meters. Currently, at least 1.2 meters tall people make up 50.5% of the population. Individuals who are under 1.2 meters tall have dramatically dropped throughout the course of the two years of data. This information lends credence to the claim that directed selection is taking place.
The evidence in the question shows that there is a directional evolution that is taking place as the percentage of the tall individuals is increasing.
What is directional selection?We know that the term natural selection implies that the organisms that are are better able to live and survive in a habitat are the ones that are able to live longer and reproduce and by so doing, they are able to transfer the favorable traits that they posses to their offspring.
Now we can also relate to the fact that the idea of directional selection is takin place when there is a situation in which the trend in the evolution seems to favor only one type of trait over another the other type of trait and this leads to a gradual increase in the abundance of the favored trait in the population.
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Which best explains how the chemical reaction shown below follows the law of conservation of mass? 2H2 + O2 → 2H2O
The given equation is showing the law of conservation of mass as the number of hydrogen and oxygen atoms are same on the both sides of the equation.
What is the chemical equation?A chemical equation can be described as the representation of a reaction in terms of chemical symbols of the substances. A chemical equation possesses of participating reactants in the reaction, formed products, and an arrow representing the direction of the chemical reaction.
The chemical equation in which the number of atoms of each element is equal on either side of the equation is called a balanced chemical equation.
The law of conservation of mass obeys by every balanced chemical equation. By following law of conservation, the total mass of the chemical elements on the reactant side should be equal to the total mass of chemical elements on the product side in a balanced chemical equation.
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