How many valence electrons are there in total for a cl2 molecule?.
Answers
The valence electrons are present in the outermost shell of an atom or an ion. The valence electrons play a significant role in chemical bonding. The chemical properties of an element depend on the valence electrons it possesses.
The valence electrons participate in the chemical reaction.Each chlorine atom in a Cl2 molecule has seven valence electrons. Since there are two chlorine atoms in the Cl2 molecule, the total number of valence electrons in Cl2 is 14. Valence electrons can be represented by dots around the element's symbol. Chlorine, for example, is a Group 7 element with seven valence electrons. A Cl atom, for example, is shown with seven dots, one for each valence electron. Chlorine has the electron configuration 1s22s22p63s23p5. The valence electrons of chlorine are in the 3s and 3p orbitals, and there are seven of them.Therefore, there are 14 valence electrons in a Cl2 molecule.
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Related Questions
which of the following stages of infectious mononucleosis infection is characterized by heterophil antibody? group of answer choices acute infection convalescent period reactivation of latent infection both a and c
Answers
The stage of infectious mononucleosis infection characterized by heterophil antibodies is the acute infection stage.
The acute infection stage of infectious mononucleosis is characterized by heterophil antibodies. When an individual initially becomes exposed to the Epstein-Barr virus (EBV), the cause of infectious mononucleosis, heterophil antibodies are normally generated during the acute phase of the illness, which typically occurs during the first two to four weeks following exposure. A blood test may be used to identify these antibodies, which are a component of the body's immunological response to the illness. Therefore, "acute infection" is the appropriate response.
Epstein-Barr virus (EBV) is the main cause of infectious mononucleosis. The immune system reacts to the viral invasion by manufacturing a variety of antibodies, including heterophil antibodies, during the acute infection stage, which normally takes place within the first two to four weeks following initial exposure to EBV.
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use the Gizmo to create a path for carbon that begins and ends in the atmosphere. Fill in the steps in the path below. Then, label each location with the system it represents. Finally, summarize very briefly how the carbon atom got to that location.
Answers
Volcanoes, burning fossil fuels, and respiration of organisms.
Explanation:
Volcanoes, burning fossil fuels, and respiration of organisms releases carbondioxide that forms atmospheric carbondioxide. The carbon enters in the biosphere through the process of photosynthesis. In plants, carbondioxide enters in the plant body which is used as a reactant from which food is prepared. The carbon present in the plant body in the form of glucose which can be transferred into another organism due to feeding of organisms. The organism released this carbon in the form of carbondioxide when the eaten food is broken down for the release of energy. In that way, carbon moves from biosphere to the atmosphere whereas Volcanoes and burning fossil fuels releases carbon in the atmosphere, in this way carbon moves from lithosphere to atmosphere.
What will happen to the object if the force is balanced
Answers
Answer:
When two forces acting on an object are equal in size but act in opposite directions, we say that they are balanced forces . If the forces on an object are balanced (or if there are no forces acting on it), this is what happens a moving object continues to move at the same speed and in the same direction.
Why do metals tend to form cations and nonmetals tend to form anions?
Answers
Explanation:
here's the link to your answer
btly. 55/7
Please answer ASAP,
Why does the earth experience high tides?
High tides occur because Jupiter is in alignment with Saturn
The gravitational force of the moon attracts the water and solid earth, pulling them closer to the moon
The gravitational pull of the moon causes areas of water that bulge away from the earth.
High tides occur because the comet Neowise passed by Earth
Answers
Answer:
B
Explanation:
I took the test and GOT an A
a sample of air at 7.50 atm is heated from 224k to 448k. if the volume remains constant, what is the final pressure?
Answers
if the volume remains constant, what is the final pressure is 3.75ATM.
What is pressure?
pressure is continues physical force exerted on or against an object by something in contact with.
Pressure is the force applied perpendicular to the surface of an object per unit area over which that force is the distributed. Gauge pressure by this is the pressure which relative to the ambient by its pressure. Various units are the used to express pressure.
Applying gas law formulae:
P1/T1 = P2/T2
Where P1 = initial pressure (atm) = 7.5
T1 = initial temperature in Kelvin(K) = 448
P2 = final pressure (atm) = unknown
T2 = final temperature in Kelvin(K) = 224
From the above Formula make P2 the subject of formula
P2 = P1T2/T1
P2 = 7.50*224/448
P2 = 1680/448
P2 = 3.75ATM
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if the equilibrium constant for a b c is 0.208, then the equilibrium constant for 2c 2a 2b is a.4.81 b.0.416 c.23.1 d.0.584 e.0.208
Answers
The equilibrium constant for 2c 2a 2b is 4.81
Equilibrium constant calculation explained.
The equilibrium constant expression for the reaction:
A + B + C ⇌ 2C + 2A + 2B
can be written as:
K = ([C]^2 [A]^2 [B]^2) / ([A][B][C])^2
which simplifies to:
K = [C]^2 [A]^2 [B]^2 / [A]^2 [B]^2 [C]^2
K = [C]^2 / [A]^2 [B]^2
Since the reaction is the reverse of the original reaction A + B + C ⇌ 2C + 2A + 2B, we can use the principle of microscopic reversibility to relate the equilibrium constants for the forward and reverse reactions:
K_reverse = 1 / K_forward
Therefore, the equilibrium constant for the reverse reaction 2C + 2A + 2B ⇌ A + B + C can be calculated as:
K_reverse = 1 / 0.208 = 4.81
Therefore, the equilibrium constant for the reaction 2C + 2A + 2B ⇌ A + B + C is approximately 4.81.
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How are oxygen and
water molecules different
from argon and neon
molecules?
Answers
Answer:Argon is an element on the periodic table. It is a member of the noble gasses, meaning that it is a monoatomic pure gas. In other words, argon gas particles are simply pure single atoms of argon. ... Finally, water is a polyatomic molecule H2O composed of two atoms of hydrogen and one atom of oxygen.
Explanation:
If you could change one thing about distance learning, what would it be?
Answers
Answer:
Nothing
Explanation:
BECAUSE DONT ASK
What is the charge of the nucleus ? Why ?
Answers
Answer:
A nucleus is a positive charge
Explanation:
A nucleus is made up of protons and neutrons. Protons have a positive charge and neutrons have a neutral charge.
This is how osmium appears in the periodic table.A purple box has O s at the center and 76 above. Below it says osmium and below that 190.23.
Rounded to the nearest whole number, how many neutrons, on average, are in an atom of osmium?
a76
b114
c 190
d266
Answers
Answer:
114
Explanation:
plz make me brainiest
___is a self improvement strategy for a busy person who has difficulty finding time to exercise
Answers
Answer:
Exersize
Explanation:
it helps you stay healthy
what will be the result of the reaction
(CH3COO)2+redP +Cl2
Answers
Answer:
(CH3COO)2 + redP + Cl2 → ClCH2COOH + HCl
Explanation:
This is an example of halogenation of carboxylic acids at alpha carbon atom. In this reaction, red phosphorus and chlorine are treated with carboxylic acids having alpha hydrogen atom followed by hydrolysis to form alpha chloro carboxylic acid.
Membrane walls of living cells have surprisingly large electric fields across them due to separation of ions. Randomized Variables d=9.5 nm
E=5.75MV/m
(10\%) Problem 6: Suppose you have a 1.4μC point charge. A 50% Part (a) How far in meters from the charge will the potential be 120 V if it is zero at infinity? A 50% Part (b) How far in meters from the charge will the potential be 210 V ? (10\%) Problem 7: In a typical nuclear fission event, a nucleus splits roughly in half. E A 50% Part (a) What is the electric potential at a distance of 1.8×10 −14
m from a nuclear fragment containing 41 protons? A 50% Part (b). What is the potential energy, in megelectron volts (MeV), of a system consisting of two such fragments separated by the same distance?
Answers
(a) The distance from the 1.4μC point charge where the potential is 120 V, given that it is zero at infinity, is approximately 9.24 meters.
(b) The distance from the 1.4μC point charge where the potential is 210 V is approximately 16.13 meters.
The potential due to a point charge can be calculated using the formula V = k * q / r, where V is the potential, k is the Coulomb's constant (k ≈ 9 × 10⁹ N m²/C²), q is the charge, and r is the distance from the charge.In part (a), the potential is given as 120 V. We need to find the distance, so we rearrange the formula as r = k * q / V. Plugging in the values, we get r = (9 × 10 ⁹N m²/C²) * (1.4 × 10⁻⁶ C) / 120 V, which simplifies to approximately 9.24 meters.
In part (b), the potential is given as 210 V. Using the same formula, we have r = (9 × 10 ⁹N m²/C²) * (1.4 × 10⁻⁶C) / 210 V, which simplifies to approximately 16.13 meters.
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The balanced molecular equation for complete neutralization of H2SO4 by KOH in aqueous solution is
A) 2H+ (aq) + 2OH- (aq) → 2H2O (l)
B) 2H+ (aq) + 2KOH (aq) → 2H2O (l) + 2K+ (aq)
C) H2SO4 (aq) + 2OH- (aq) → 2H2O (l) + SO42- (aq)
D) H2SO4 (aq) + 2KOH (aq) → 2H2O (l) + K2SO4 (s)
E) H2SO4 (aq) + 2KOH (aq) → 2H2O (l) + K2SO4 (aq)
Answers
The balanced molecular equation for complete neutralization of H2SO4 by KOH in aqueous solution is :
E: H2SO4 (aq) + 2KOH (aq) → 2H2O (l) + K2SO4 (aq).
This is because neutralization is a chemical reaction between an acid and a base, which produces a salt and water.
In a reaction with water, neutralization leaves the solution with too many hydrogen or hydroxide ions. The amount of acid or base present in the neutralized solution determines its pH.
A strong acid and a strong base together will result in a neutral salt. When a strong acid and a weak base are combined, acid is created. Similar to this, when a weak acid is combined with a strong acid, a basic salt is created. There are numerous applications for neutralization.
In this case, H2SO4 is the acid and KOH is the base, and when they react in aqueous solution, they produce K2SO4 (salt) and H2O (water).
The balanced molecular equation represents the chemical reaction in terms of the molecular formulae of the reactants and products involved.
Thus, the correct option is : (E).
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Use the periodic table to identify the number of valence electrons available for bonding for each of the following elements.
C :
H:
N:
O:
P:
CI:
Answers
Answer:
Look at the screenshot below.
Those are your answers!
Good Luck.
Explanation:
The number of valence electrons for neutral atoms is the same as the number of the atom's main group.A periodic table element's column can be used to determine its main group number.For instance, carbon, which belongs to group 4, has four valence electrons.
Use the periodic table to identify the number of valence electrons available for bonding for each of the following elements?
This rule states that each group of elements has one valence electron, two valence electrons in group 2, three valence electrons in group 13, four valence electrons in group 14, and so on. C : Six electrons make up the atom of carbon: four valence (outermost shell) electrons in the 2s and 2p orbitals, and two inner shell (core) electrons in the 1s orbital. H : As the initial element, hydrogen has an electron configuration of 1s1.Its valence shell only contains one electron.The outermost electrons or those with the highest energy level are called valence electrons. N : The periodic table's Group 15 is headed by nitrogen, which has either 3 or 5 valence electrons. O : On the periodic table, column 6 contains oxygen (symbol O).Its valence electrons number six.To obtain an octet, two bonds must be created. Ci : If chlorine removes one of its seven valence electrons, it will have eight (an octet).When chlorine gains one electron, its electron configuration resembles that of argon.If chlorine had given up all seven of its valence electrons and sodium had taken them, the octet rule would have been met.To learn more about periodic table refer
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A 4.80-gram piece of magnesium displaces 2.76 mL of water when it is placed in a graduated cylinder. What is the density of magnesium?
Answers
Answer:
1.73913043g/mL
Explanation:
Density is how much a substance would weigh per 1 mL of the substance. So it is measured by dividing weight (g) by volume (mL).
4.80g/2.76mL = 1.73913043g/mL
Oxidation of a 24-carbon fatty acid would require _____ rounds of beta-oxidation and ______ rounds of the krebs cycle.
Answers
Oxidation of a 24-carbon fatty acid would require ELEVEN (11) rounds of beta-oxidation and TWELVE (12) rounds of the Krebs cycle. It is part of cellular respiration.
The Krebs cycle and cellular respirationCellular respiration is a group of chemical reactions by which aerobic cells can produce ATP by using energy from foods.
Cellular respiration has three parts: glycolysis, the Krebs cycle (also called the acid citric cycle) and oxidative phosphorylation.
During the Krebs cycle, hydrogen atoms or electrons pass through a series of hydrogen/electron carriers.
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how can knowledge of percent composition help you as a consumer ? how can you promote responsible consumerism ?
Answers
Answer:
it is a nice question....my mind tells me that the first is it use me as a good vibes and can use to anything the second i will do my best too absorbe it.
Explanation:
Hope this help...
methanol fuel cells depend on the reaction below. how many electrons are transferred in this redox reaction per mole of methanol consumed?
Answers
The reaction for methanol fuel cells can be represented as follows:CH3OH + 3/2 O2 → CO2 + 2 H2OThe electrons transfer in this reaction per mole of methanol consumed can be calculated using the concept of oxidation-reduction or redox reactions.
In this reaction, methanol is oxidized to carbon dioxide, and oxygen is reduced to water. Therefore, methanol is the reducing agent, and oxygen is the oxidizing agent. The electrons move from the reducing agent to the oxidizing agent; thus, the number of electrons transferred is equal to the difference in oxidation states of the atoms before and after the reaction.The oxidation state of carbon (C) in methanol is -2, and the oxidation state of carbon (C) in carbon dioxide (CO2) is +4. Therefore, carbon is oxidized, and the number of electrons transferred is equal to 6 (-2 → +4).The oxidation state of oxygen (O) in oxygen (O2) is 0, and the oxidation state of oxygen (O) in water (H2O) is -2. Therefore, oxygen is reduced, and the number of electrons transferred is equal to 12 (0 → -2 × 2).Thus, a total of 6 + 12 = 18 electrons are transferred per mole of methanol consumed.For such more question on oxidizing
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Methanol fuel cells depend on the reaction:CH3OH + H2O CO2 + 6H+ + 6e: The redox reaction involved in methanol fuel cells is:CH3OH + H2O CO2 + 6H+ + 6e: It involves the transfer of electrons in a redox reaction.
In this case, 6 electrons are transferred in this redox reaction per mole of methanol consumed.The reaction in question is an example of a fuel cell reaction. Methanol fuel cells are widely used because they have higher energy densities than lithium-ion batteries, are cheaper to manufacture, and have lower operating temperatures
Methanol fuel cells are fuel cells in which the fuel is stored in the fuel cell itself rather than being carried in an external tank or cartridge. It has the potential to store more energy than traditional fuel cells.
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Photochemical reaction are?
Answers
In everyday language, macroscopic algae is called
Answers
Macroscopic algae are called Seaweed.
The largest and most complex marine algae are called seaweeds while the most complex freshwater forms are the Charophyta a division of green algae which includes, for example, Spirogyra and stoneworts. Algae are almost ubiquitous throughout the world and can be categorized ecologically by their habitats.
Planktonic algae are microscopic and grow suspended in the water, whereas neustonic algae grow on the water's surface and can be micro- or macroscopic. Phytoplankton refers to a group of plankton that is photosynthetic. Most of them are microscopic algal species or microalgae. The algae of this paraphyletic group Charophyta were previously included in Chlorophyta so green algae and Chlorophyta in this definition were synonyms.
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What is the main hitch or problem in getting fusion to occur?
Answers
Answer:
working with intense pressure and heat
Explanation: you would you have to work with intense pressure and heat in order to fuse two hydrogen nuclei together to create helium isotopes.
Answer:
The main problem is achieving ignition to start the reactions. Fusion reactions can occur only at extremely high temperatures.
Explanation:
You titrate a 200 mL HBr solution with 0.5 M KOH. If it takes 150 mL of KOH to reach the equivalence point, what was the concentration of the original acid solution? a. 0.72 M b. 0.38 M c. 0.46 M d. 0.67 M
Answers
b. 0.38 M is the concentration of the original acid HBr solution.
What is the name of an acid-base titration?Acid-base titration is the word for the technique where an acid-base reaction is used. A redox titration is the method employed when a redox reaction is used. Volumetric analysis, a method for quantitative chemical analysis, seems to be another name for titration.
Concentration of HBr = C1
Volume of HBr = V1 = 200mL
Concentration of KOH = C2 = 0.5 M
Volume of KOH = V2 =150 mL
C1 x V1 = C2 x V2
C1 x 200 = 0.5 x 150
C1 = 0.38M
What does titration provide as a means of?The equivalence point, or the figure at which chemically equivalent quantities of the reactants have been integrated, is to be detected by the titration. The stoichiometry of the reaction indicates how often reactants have been integrated at the equivalence point.
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Which of the following is not a molecular formula?
N₂020
N₂08
N₂04
NO₂
Answers
Answer:
N2020
Explanation:
I’m not fully sure but I’m pretty sure it’s wrong
look at the drawing of a beach. how do the waves change the beach
A) They divide the beach in half.
B) They build sand hills on the beach.
C) They deposit and wash the sand away
D is an incorrect answer it tells me that on my test
Answers
Answer:
i think its C
Explanation: im at the Beach all the time and waves wash the sand away
Answer:
my first answer got deleted for no reason but the answer is C
Explanation:
2.
What is the percent composition of nickel in NiPO ?
Answers
Answer:
18.782% is the correct percent
Select the correct answer from each drop-down menu. Fats obtained from a variety of foods are essential nutrients but may be harmful to the body in some forms. ____are healthy fats that have at least one double bond in the fatty acid chain. Most____are artificially hydrogenated fats that have detrimental effects on health.
a. saturated fat
b. unsaturated fat
c. trans fat
Answers
Unsaturated fats are the healthy fats which have at least one double bond in the fatty acid chain. Most trans fats are artificially hydrogenated fats that have detrimental effects on health. Option B and C is correct.
Unsaturated fats are a type of fat that is typically liquid at room temperature and comes from plant-based sources such as nuts, seeds, and vegetable oils. These fats have at least one double bond in the fatty acid chain, which creates kinks in the molecule, preventing them from packing tightly together, and giving them their liquid state.
Trans fats are a type of unsaturated fat that is created when liquid vegetable oils are partially hydrogenated, a process that adds hydrogen atoms to the fatty acid chain, making it more solid and stable at room temperature. Trans fats can be found in many processed foods, such as baked goods, fried foods, and snack foods, as well as in some margarines and shortenings.
Hence, B. C. is the correct option.
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Potassium-40 (K-40) decays to Argon-40 (Ar-40) with a half-life of 1.25 billion
years. For a mineral that contains 50% of its original K-40, check all of the true
statements below.
A• Mineral Age = 50% of 1.25 b.y. - 0.625 b.y.
B• Mineral Age = 1.25 by. X 1 elapsed half-life = 1.25 by.
C. The percentage of K-40 atoms inside the mineral increases with time
D. The percentage of Ar-40 atoms inside the mineral is reduced with time
Answers
For a mineral that contains 50% of its original K-40, the statements which are true are option (a) Mineral Age = 50% of 1.25 b.y. - 0.625 b.y. and option (d) The percentage of Ar-40 atoms inside the mineral is reduced with time.
Potassium-40 (K-40) decays to Argon-40 (Ar-40) with a half-life of 1.25 billion years. For a mineral that contains 50% of its original K-40, the statements which are true :
a) Mineral Age = 50% of 1.25 b.y. - 0.625 b.y. - This statement is true. The age of the mineral is half the half-life of K-40 which equals 0.625 billion years.
b) Mineral Age = 1.25 by. X 1 elapsed half-life = 1.25 by. - This statement is false because the mineral contains only 50% of the original K-40.
c) The percentage of K-40 atoms inside the mineral increases with time. This statement is false because K-40 decays to Ar-40 with time.
d) The percentage of Ar-40 atoms inside the mineral is reduced with time. This statement is true because K-40 decays to Ar-40 with time. As K-40 decays, the percentage of Ar-40 atoms inside the mineral increases.
Thus, the statements which are true are option (a) Mineral Age = 50% of 1.25 b.y. - 0.625 b.y. and option (d) The percentage of Ar-40 atoms inside the mineral is reduced with time.
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On the luminosity chart, temperature increases as you read it to the right. True or False?
Answers
Answer:
Explanation:
True