Ideal gas law is valid only for ideal gas not for vanderwaal gas. Therefore, the volume of gas will be collected for the complete reaction of 24.23 g of NiO is 4.19L.
What is ideal gas equation?Ideal gas equation is the mathematical expression that relates pressure volume and temperature. There is no force of attraction between the particles.
Mathematically the relation between Pressure, volume and temperature can be given as
PV=nRT
where,
P = pressure of gas sample
V= volume of gas sample
n =number of moles of gas sample
T =temperature of gas
R = Gas constant = 0.0821 L.atm/K.mol
Substituting all the given values, we get
Molar mass of NiO=74.6928g/mol
mass of NiO= 24.23 g
Number of moles of NiO =0.324
From reaction the molar ratio between NiO and O[tex]_2[/tex] is 2:1
Number of moles of O[tex]_2[/tex] =0.16moles
applying ideal gas equation
0.98atm×V =0.16× 0.0821×313
V =4.19L
Therefore, the volume of gas will be collected for the complete reaction of 24.23 g of NiO is 4.19L.
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How are latitude similar in their effects on climate
Please help me asap
Answer:
varying altitude and latitude create unequal heating of Earth's atmosphere
Explanation:
the higher you are, the colder it is(most of the time)
and latitude determines how close you are to the poles, the closer the cooler
An aqueous solution contains the amino acid glycine (NH2CH2COOH). Assuming the acid does not ionise in water, calculate the molality of the solution if it freezes at 21.1°C.
The molality of the solution is -11.34 m/kg. The number of moles of solute in a solution equal to 1 kg or 1000 g of solvent is referred to as its molality.
What is meant by molality?The number of moles of solute in a solution equal to 1 kg or 1000 g of solvent is referred to as its molality. The definition of molarity, on the other hand, is based on a certain volume of solution. Mol/kg is a typical molality measurement unit in chemistry.
While a solution's molarity is determined by the moles of solute divided by the volume of the solution in litres, a solution's molality is determined by the moles of solute divided by the mass of the solvent in kilogrammes.
Colligative property: freezing point depression.
ΔT = Kf. m
ΔT = T°fussion pure solvent - T° fussion solution
Kf = depression constant for water
0°C - (21.1°C) = 1.86 °C/m . m
-21.1°C = 1.86°C/m . m
-21.1°C / 1.86° m/°C = m → -11.34 m/kg
The molality of the solution is -11.34 m/kg
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how many atoms in 0.034 moles of titanium
Answer:
[tex] \huge{ \boxed{2.0468 \times {10}^{22} \: \text{atoms} }}[/tex]
Explanation:
To find the number of entities in a given substance we use the formula
[tex] \bold{N = n \times L} [/tex]
where n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question
n = 0.034 moles
N = 0.034 × 6.02 × 10²³ = 2.0468 × 10²²
We have the final answer as
[tex] \bold{2.0468 \times {10}^{22} \: \text{atoms}}[/tex]
This hydrocarbon is incomplete. Draw the hydrogen atoms and the bonds connecting them to carbon atoms such that each carbon atom has four bonds. Then record the number of hydrogen atoms you drew using a text box.
Explanation:
no. of H atoms is 12..
no of C atoms is 5....
all the C atoms are sharing a bond with each other and so are H atoms...
why does enzymatic reduction result in a chiral product in a comparative reduction reaction?
The chirality of the enzyme ensures that a chiral product is obtained.
Why is the product chiral?The term chirality could be simplified to mean "handedness". This idea comes from the fact that a compound could be handed. The handed of aa molecule has to do with the direction to which it rotates plane polarized. As such a compound could be left handed or right handed.
Now, we are told that the product of the enzyme is chiral. This is because the enzyme is also chiral and its shape can only lock into the particular chiral reactant and this is what does give rise to the chiral product.
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If others adopted similar habits, how might the world of science change?
Answer:
Explanation:
Smoking a cigarette, snorting cocaine, or drinking yourself into oblivion are all easy habits to adopt because they light up your brain with the neurotransmitter …
Hello, Please help asap. Due in like 10-20 mins. I would greatly appreciate it (INCLUDES PICTURE DOWN BELOW)
In the given diagram of photosynthesis:
1. Carbon dioxide CO₂
2. Glucose C₆H₁₂O₆
3. ATP
What is Photosynthesis?Photosynthesis can be described as a process by which phototrophs convert light into chemical energy. This chemical energy is stored in the form of sugars, which are generated from water and carbon dioxide.
Photosynthesis reaction involves carbon dioxide and water which yield two products oxygen and glucose. Therefore, the photosynthesis reaction is said to be an endothermic reaction.
[tex]6CO_2 + 6H_2O \longrightarrow C_6H_{12}O_6 + 6O_2[/tex]
Photosynthesis takes place when plants use light energy to transform carbon dioxide gas and water into glucose and oxygen gas. Each chloroplast in plants contains a green-colored pigment known as chlorophyll. Sunlight is absorbed by chlorophyll whereas carbon dioxide and oxygen enter via the tiny pores of the stomata of leaves.
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Omar wants to determine if the mass of a model rocket affects how long the rocket is able to stay up in the air. To do this, he constructs three identical rockets and then fills two of the rockets with varying amounts of sand to add mass. He then launches the rockets one at a time and times how long they are able to stay airborne.
What is the test variable (independent variable) in Omar's experiment?
A.
the materials out of which the rockets were made
B.
the time the rockets remain airborne
C.
the force with which each rocket is launched
D.
the masses of the model rockets
Distillation is a technique in which substances are separated based on their what
Answer:
It is based on the boiling point or volatility of its components.
Explanation:
because Distillation separates liquid from solid.
If you dilute a 10.0 mL of a 11.5 M HCl solution to make a 1.10 M HCl solution, what will the final
volume be?
Explanation:
The final volume will be 100 mL. This is because when you dilute a solution, the molarity of the solution decreases while the volume increases. Since the molarity of the original solution is 11.5 M and the desired molarity is 1.10 M, the volume must increase by a factor of 10.5 (11.5/1.10). Therefore, the final volume will be 10.0 mL x 10.5 = 100 mL.
A lab tech has 8.0 L of a 12.0 M HCl solution available. What volume of this solution does she need to prepare 3.0 L of a 1.5 M HCl solution for CHM 101 lab?
Answer: 0.375L
Explanation: Using M1V1=M2V2, we can solve for V1.
12M*V1=1.5M*3.0L
V1 = [tex]\frac{1.5M*3.0L}{12M}[/tex]
V1 = 0.375L.
0.375 L volume of the solution she needed to prepare 3.0 L of a 1.5 M HCl solution.
What is a solution?A homogenous mixture of one or more solutes that have been dissolved in a solvent is known as a solution. The material that a solute dissolves in to create a homogenous mixture is known as a solvent.
The component that dissolves in a solvent to create a homogenous mixture is known as a solute.
M₁ is the initial concentration of HCl solution = 12.0 M
V₁ is the volume of initial HCl solution that is needed
M₂ is the final concentration of HCl solution = 1.5 M
V₂ is the final volume of HCl solution to be prepared = 3.0 L
To find V₁, we get
V₁ = (M₂ V₂) / M₁
calculating the values, we will get:
V₁ = 1.5 M x 3.0 L / 12.0 M
= 0.375 L
Therefore, tech required to take 0.375 L of the 12.0 M HCl solution and dilute it to 3.0 L to make a 1.5 M HCl solution.
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Sn2+(aq) + Cr2O7^2- (aq) + 14H+(aq) → 3Sn4+(aq) + 2Cr3+(aq) + 7H2O(l)
Volume = 6.64 mL
The moles of Cr2O7^2-(aq) that reacted, expressed in scientific notation, is a.bc x 10-dmol. The values of a, b, c and d are..?
The concentration of Sn2+(aq), expressed in scientific notation, is a.bc x 10-d mol/L. The values of a, b, c and d are..? (use previous recorded answer to answer this question)
The chemical reaction is fe2+ Pt(s) ∣ fe3+ (aq) ∣∣cr2O²-7(aq),cr+3(aq) ∣ Pt(s)
How to calculate chemical reaction ?Reaction where particular set of chemicals changes into another form without changing their nuclei just the transfer or sharing of electrons and formation and breaking of bonds is called as chemical reaction.
cr-2 7 (aq)+ 14H+(aq)+ 6fe2+(aq)⟶6fe+3(aq)+2cr+3 (aq)+7h2 O(l)
Here, cr+6 2 02-7 (aq) is reduced to cr+3 (aq)
& fe+2 (aq) is oxidized to fe+3 (aq)
Reducing takes place at cathode & oxidation takes place at anode.
The cell is represented by anode on the left hand side of electrolyte bridge & cathode on the right hand side of electrolyte bridge.
∴ It can be represented as :
Pt(s) ∣ fe 3 + (aq)fe2+ (aq) ∣∣ cr2 o2- 7(aq),cr+3 (aq) ∣ Pt(s)
The complete question is : The cell reaction cr2 O2(aq)+14H+aq)+ 6fe2+(aq)→ 6fe3+(aq)+ (aq)+7H2 O(l), is best represented by:
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A package of M&M's was placed in a Calorimeter that had 200.0g of water at 35.00°C. The sample was then ignited to release its energy. The
temperature of the water increased to 550.0°C. Calculate the number of food Calories (Cal) that are in the package of M&M's. Round your Calories
according to sig fig rules
Here the substance is water. So, we need to know the value of specific heat capacity of water to solve this question.
The specific heat capacity of water is 4.18 J/g° C.
This is the heat required to increase the temperature by one degree Celsius. To increase the temperature by 20 degree C, the heat required will be 2 times of 4.18 J/g° C.
The heat required to raise the temperature of n grams of a substance by m0C will be,
Let us rewrite the equation as,
q = mc Δ t
Where q is the heat required, m is the mass of the substance, c is the specific heat capacity of the substance and Δ t is the temperature difference.
Given that,
m = 200g
Δ t = 55° C – 35° C = 20° C
c = 4.18 J/g° C
Let us substitute the values:
q = 200*4.18*20
Hence the heat required is 16720J.
Converting it to kJ, the heat required to raise the temperature of 200 grams of water from 55° C to 35° C is 167 KJ.
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The number of food Calories (Cal) that are in the package of M&M's are
431000 Joules.
When we measure the temperature change of the calorimeter, we may use this equation to compute the heat released by a sample because the calorimeter is an instrument for which we are aware of (or can ascertain) its heat capacity.
When a liquid absorbs or loses energy, the temperature of the liquid varies.
In accordance with the formula
Q= mCΔT
m = 200g
ΔT = 550 - 35
ΔT = 515
C = 4.182 J/kg °C
Q is equal to 200 * 4182 * 515
Q = 430746 Joules.
Water has a 4,200 J/kg°C (joules per kilogram per degree Celsius) specific heat capacity. This indicates that 4,200 J are required to increase the temperature of 1 kilogram of water by 1°C.
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8. Interestingly, the 1s orbital in the chlorine atom encloses more volume of space than the 1s orbital in an argon atom. Explain.
Answer: Chorine's atomic radius in larger than that of Argon.
Explanation: Thinking in terms of atomic radius, as you move from left to right on the periodic table, atomic radius decreases. However, as you move from top to bottom on the periodic table, the atomic radius increases. This is because when you are moving from top to bottom on the periodic table, more orbitals are added. When you move from left to right, the number of orbitals remains the same but the number of protons in the nucleus is still increasing. They have a stronger hold on the electrons and pull them closer. This also makes it harder for outside photons to remove an electron from an atom (ionization energy) as you move from left to right on the periodic table.
Now let's think about chlorine and argon. They are right next to each other in the upper right-hand corner of the periodic table. However, chlorine does come first and if we think back to the atomic radius, it gets smaller as you move from left to right. Chlorine comes before Argon when looking left to right.
In conclusion, chorine's atomic radius is larger than that of argon.
N2O, also known as laughing gas, is commonly used by dentists as a sedative and pain reliever during dental procedures. Answer the naming questions below about N2O.
What is the IUPAC name for N2O?
mononitrogen dioxide
dinitrogen monoxide
nitrogen oxide
nitrous oxide
There are two types of chemical compound one is covalent compound and other is ionic compound, covalent compound formed by sharing of electron and ionic compound formed by complete transfer of electron. Therefore, the the IUPAC name for N[tex]_2[/tex]O is nitrous oxide.
What is chemical Compound?Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.
An ionic compound is a metal and nonmetal combined compound. Ionic compound are very hard. They have high melting and boiling point because of strong ion bond.
N[tex]_2[/tex]O, also known as laughing gas, is commonly used by dentists as a sedative and pain reliever during dental procedures. The IUPAC name for N[tex]_2[/tex]O is nitrous oxide.
Therefore, the the IUPAC name for N[tex]_2[/tex]O is nitrous oxide.
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Answer: 1. dinitrogen monoxide ( iupac name for N2O)
2.nitrous oxide (common name for N3O)
Explanation:
NEED HELP ASAP PLEASE AND TY
The synthesis of the ATP takes place in the organelle known as the mitochondrion. Therefore, option (A) is correct.
What is mitochondrion?Mitochondrion can be described as the membrane-bound organelles in the cytoplasm of all eukaryotic cells, that synthesize adenosine triphosphate (ATP), the main energy source used by the cell.
It is also known as the “Powerhouse of the cell,” Mitochondrion is found inside the cytoplasm and essentially functions as the cell’s digestive system.
Mitochondrion plays a major role in breaking down nutrients and producing energy-rich molecules for the cell. Many of the biochemical reactions in cellular respiration occur within the mitochondria.
The mitochondrion's structure can be described as a double-membraned, rod-shaped structure found in both animal cells and plants.
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Can there be a balance between lifestyle and green technology?
In this chemical equation below 2 Mg + HCI are called the ?
2 Mg + HCI —> MgCl2 + H2
In this chemical equation below 2Mg + HCI are called the reactants. Therefore, option (4) is correct.
What is the chemical equation?A chemical equation can be defined as a representation of a chemical reaction with help of chemical symbols, and molecular formulae of the substances. A chemical equation exhibits reactants participating, formed products in the reaction, and an arrow shows the direction of the chemical reaction.
The chemical equation in which the number of atoms of each element on either side of the equation should be equal is called a balanced chemical equation.
A chemical equation obeys the law of conservation of mass. By obeying this law, in a balanced chemical equation, the total mass on the reactant side must be equal to total mass on the product side.
In the given chemical equation, Mg and HCl are reactants and MgCl₂and H₂ are products.
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What charge does Magnesium acquire when it becomes an ion?
This compound ( 2,3-dimethyl-2-heptene ) is symmetric or asymmetric
Answer:
symmetric
Explanation:
The compound 2,3-dimethyl-2-heptene is symmetric. A compound is symmetric if it has an identical molecular structure on both sides of its central axis. In the case of 2,3-dimethyl-2-heptene, the molecule has a central carbon atom with two methyl groups attached to it, one on the 2nd position and one on the 3rd position. Because the groups attached to the central carbon atom are identical, the molecule is symmetric.
In contrast, an asymmetric compound has a molecular structure that is different on each side of its central axis. For example, a compound with a central carbon atom attached to two different groups, such as a methyl group and a hydrogen atom, would be asymmetric.
Please HELP ASAP
Carbon dioxide gas, CO2, effuses at a rate that is 1.087 times the effusion rate of a second gas. One molecule of this second gas contains one atom of nitrogen and two other atoms that are identical. What element are these other atoms?
Ideal gas law is valid only for ideal gas not for vanderwaal gas. To solve such, we need to know the relation between rate of effusion and molar mass of gases. Therefore, the molar mass of unknown gas is 53.6g/mol.
What is ideal gas equation?Ideal gas equation is the mathematical expression that relates pressure volume and temperature.
Mathematically the relation between rate of effusion of gases and their molar masses can be given as:
rate of effusion of unknown gas/rate of effusion of carbon dioxide gas=√molar mass of carbon dioxide/molar mass of particular gas
rate of effusion of carbon dioxide=1.087 ×rate of effusion of unknown gas
Substituting all the given values we get
rate of effusion of unknown gas÷ 1.087 ×rate of effusion of unknown gas=√44 g/mol÷ molar mass of unknown gas
1÷ 1.087=√44 g/mol÷ molar mass of unknown gas
squaring both side
0.82=44 g/mol÷ molar mass of unknown gas
molar mass of unknown gas= 53.6g/mol
Therefore, the molar mass of unknown gas is 53.6g/mol
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A container of CH at 2.00 atm of pressure has a small pinhole, through which the CH effuses at a rate of 2.55 mL/min. What will be the rate of effusion of CO at 2.00 atm in the same container?
The rate of effusion of CO at 2.00 atm in the same container would be 1.74 mL/min.
Rate of effusion of gasesAccording to Graham's law of effusion of gases, at constant pressure, the rate of effusion of gases is inversely proportional to the square root of their molar masses.
Graham's law of effusion of gases can be mathematically represented as:
[tex]r_1/r_2[/tex] = [tex]\sqrt\frac{Mm_2}{Mm_1}[/tex]
Where [tex]r_1[/tex] and [tex]r_2[/tex] are effusion rates of gas 1 and gas 2, and [tex]Mm_1[/tex] and [tex]Mm_2[/tex] are their molar masses respectively.
In this case:
Gas 1 = CH
Molar mass of CH = 12 + 1 = 13 g/mol
[tex]r_1[/tex] = 2.55
Gas 2 = CO
Molar mass = 12 + 16 = 28 g/mol
[tex]r_2[/tex] = ?
Making [tex]r_2[/tex] the subject of the formula and substituting the values into the equation:
2.55/[tex]r_2[/tex] = [tex]\sqrt\frac{28}{13}[/tex]
2.55/[tex]r_2[/tex] = 1.4676
[tex]r_2[/tex] = 2.55/1.4676
= 1.74 mL/min
In other words, the rate of effusion of CO at 2.00 atm in the same container would be 1.74 mL/min.
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How many moles of nitrogen gas would be produced if 7.75 moles of copper(I) oxide were reacted with excess ammonia in the following chemical reaction? 2 NHs (g) + 3 CuO (s) > 3 Cu(s) + Na(g) + 3 H20 (g)
Answer:
Explanation:
Dimensional analysis, using mole ratio from the balanced reaction: (7.63 mole CuO) * (1 mole N2 /3 mole CuO) = 2.54 mole N2
Part A: Identify the oldest rock layer shown in the diagram. Be sure to explain your reasoning.
Part B: Scientists think that the trilobite fossil found only in layer d became extinct soon after layer d was formed. Using evidence from the cross-section, explain why this statement is true or not.
Answer: none
Explanation:none
Which of the following is best for determining the type of bond that will form between atoms when forming a compound?
Answer: Best way is Electronegativity.
Explanation:
Comparing the electronegativities of the two elements is one method of predicting the type of bond that will form between them. Ionic bonds typically result from significant differences in electronegativity, whereas covalent bonds typically result from smaller differences.
The kind of covalent bond that forms between two atoms depends on how many pairs of electrons are shared by them. There are some factors that determine the type of bonds.
Simply how they share electrons makes a difference between different binding kinds. Ionic bonds don't share at all, polar bonds share unevenly, and covalent bonds share equally. Following are the variables that affect the kind of bond that will form between two atoms:
Ionizing radiationAtomic affinityAtomic structure, etc.To learn more about Bonds,
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Where do stars form?
Stars form in large, dense regions of gas and dust known as molecular clouds. These clouds are located primarily in the spiral arms of galaxies, where they are exposed to intense radiation from nearby stars. As the gas and dust in these clouds are subjected to this radiation, they begin to collapse under their own gravity. As the collapse continues, the cloud becomes denser and denser, and eventually a protostar forms at its center. Over time, this protostar continues to contract and heat up, eventually reaching the point where nuclear fusion can begin in its core. At this point, the protostar becomes a fully-fledged star, and the process of star formation is complete.
TL;DR: Within the clouds of dust and scattered throughout most galaxies.
Part 1: Name the type of chemical reaction that occurs when magnesium chloride solution (MgCl2) reacts with sodium carbonate solution (Na2CO3).
Part 2: Explain why aluminum (Al) would react with copper chloride (CuCl2) but not with magnesium chloride (MgCl2).
1. The name of the reaction is double displacement reaction
2. Aluminum (Al) will react with CuCl₂ but not with MgCl₂ because Mg is higher than Al in the electrochemical series
1. How do I know the type of reaction occurring?
To know the type of reaction occurring, we shall write the balanced equation for the reaction. Details below:
MgCl₂ + Na₂CO₃ -> 2NaCl + MgCO₃
From the balanced equation above, we can see clearly that there is an exchange of ions as Na and Mg exchanges and likes Cl₂ and CO₃.
Thus, we can conclude that the reaction is a double displacement reaction
2. Why will Al react with CuCl₂ but not with MgCl₂?
The reactivity of metals is controlled by their position in the electrochemical series.
Metals higher in the electrochemical series are more reactive and will displace the less reactive metals from solution.
The attached photo shows the electrochemical series of metals.
We can see that magnesium, Mg is higher than aluminum, Al in the electrochemical series and as such, Al can not displace Mg from solution.
Thus, we can conclude that Al can not react with MgCl₂ since Mg is higher than Al in electrochemical series.
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What is the molar mass of an unknown gas with a density of 14.1 g/L at 4.00 atm and 35.0 °C?
89.08 g/mol is the molar mass of an unknown gas with a density of 14.1 g/L at 4.00 atm and 35.0 °C.
We know that
PV=nRT.
where,
P = Pressure of the gas
V = Volume of the gas
n = Mole
Mole = Given mass/Molar mass
= m /Mw
R = Real gas constant = .08205 L atm/mole k
T = temperature
Now,
PV = mRT/Mw
Mw= mRT/PV. ( m/V=density)
Mw = dRT/P
Mw = 14.1 g/L × 0.08205 × 308/4
Mw = 89.08 g/mol
Hence we can say that Molar mass is 89.08 g/mol.
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Several isotopes of curium can be synthesized by bombarding 239Pu with alpha particles. Write a balanced nuclear equation describing the reaction that produces 241Cm.
The radioactive element plutonium undergo radioactive bombardment producing stable isotope curium. The balanced nuclear reaction is written below:
[tex]_{94}^{239}\textrm{Pu} + _{2}^{4}\textrm{He}\rightarrow _{96}^{241}\textrm{Cm} + 2_{0}^{1}\textrm{n}[/tex]
What are nuclear reactions?Atomic nucleus undergoes reaction with charged particles producing either its isotope or a new atom. Heavy unstable atoms such as actinides undergo radioactive decay by emitting or bombarding charged species such as alpha particles to form stable species.
Plutonium is 94th element in periodic table. It is used as nuclear fuel because it releases energy during nuclear reactions. Bombardment of an alpha particle produces a curium (Z = 96, A =241) with two neutrons as side products.
Therefore the balanced nuclear reaction of Pu-239 to produce Cm-241 is written as below:
[tex]_{94}^{239}\textrm{Pu} + _{2}^{4}\textrm{He}\rightarrow _{96}^{241}\textrm{Cm} + 2_{0}^{1}\textrm{n}[/tex]
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Knowing what you know about photosynthesis, explain how the process may help reduce global warming.
Photosynthesis may help reduce global warming because the carbon dioxide is consumed during the process.
How photosynthesis may help reduce global warmingGlobal warming has to do with an increase in the average global temperature brought about by the increase in the concentration of greenhouse gases in the atmosphere.
The greenhouse gases form a layer that traps reflected solar radiation in the atmosphere. They prevent these radiations from returning back to space and consequently, the temperature of the planet keeps increasing. The more the concentration of these gases in the atmosphere, the more the warming increases.
Carbon dioxide gas represents a major component of greenhouse gases and has been the main culprit in global warming.
During photosynthesis, carbon dioxide is utilized by green plants to make carbohydrates. Thus, photosynthesis remains a major way through which the concentration of carbon dioxide in the atmosphere can be reduced and consequently reduce global warming.
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