The grams of AgCl are generated when 85 g of BaCl₂ reacts is 10.86 g.
The balanced equation is given as :
BaCl₂ + 2AgNO₃ -----> 2AgCl + Ba(NO₃)₂
the mass of the BaCl₂ = 85 g
molar mass of BaCl₂ = 208.23 g/mol
moles of BaCl₂ = mass / molar mass
= 85 / 208.23
= 0.408 mol
1 mole of BaCl₂ produce 2 moles of AgCl
0.408 moles of BaCl₂ = 2 × 0.408
= 0.816 mol of AgCl
moles of AgCl = 0.816 mol
mass of AgCl = moles × molar mass
= 0.816 g × 143.32 g/mol
= 10.86 g
Thus, The grams of AgCl are generated when 85 g of BaCl₂ reacts is 10.86 g.
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Determine the volume of a 0.100 M KMnO4 solution required to completely react with 2.05 g of Zn.
Express your answer using three significant figures.
The volume of a 0.100 M KMnO4 solution required to completely react with 2.05 g of Zn.193 ml.
Molar attention is a degree of awareness of a chemical species, specifically of a solute in a solution, in phrases of amount of substance consistent with the unit extent of solution. In chemistry, the maximum typically used unit for molarity is the variety of moles according to liter, having the unit symbol mol/L or mol/dm³ in SI unit.
Molarity is the range of moles of solute in line with the liter of answer. for instance, in case you dissolve table salt in water, salt is the solute, and water is the solution. One mole of sodium chloride weighs fifty-eight.44 grams. if you dissolve 58.44 grams of NaCl in one liter of water, you have got a one-molar solution, abbreviated as 1M.
Molarity of KMnO₄ = number of moles/vol of solution in L
0.100 M = 0.01928 / volume
volume = 0.1928 L = 192.8 ml
= 193 ml ( 3 significant figures)
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how many kilometers are in 230 m
here the 230 m have how many km = 230/1000
=0.23km
Answer:
The answer is 0.23 km.
Divide the length by 1000. Example 230 m / 1000 = 0.23 km
Balance the following equation:
Answer:
[tex]C_{5} H_{12} + 8O_{2} \\\ - > 5CO_{2} + 6H_{2}O[/tex]
Explanation:
Blank 1: remain blank or put 1
Blank 2: 8
Blank 3: 5
Blank 4: 6
Purpose is to have the same amount of each element on both side of equation
To calculate the atoms of an element in a given molecule, we need to multiply stoichiometry by the number that is written on the foot of that element. The balanced equation is
C[tex]_5[/tex]H[tex]_12[/tex]+O[tex]_2[/tex][tex]\rightarrow[/tex]5CO[tex]_2[/tex]+6H[tex]_2[/tex]O
What is Balanced equation?Balanced equation is the one in which the total number of atoms of a species on reactant side is equal to the total number of atoms on product side.
The unbalanced equation is
C[tex]_5[/tex]H[tex]_12[/tex]+O[tex]_2[/tex][tex]\rightarrow[/tex]CO[tex]_2[/tex]+H[tex]_2[/tex]O
The number of atoms of carbon on reactant side is 5 and on product side it is 1. so to balance it we need to multiply CO[tex]_2[/tex] by 5.
C[tex]_5[/tex]H[tex]_12[/tex]+O[tex]_2[/tex][tex]\rightarrow[/tex]5CO[tex]_2[/tex]+H[tex]_2[/tex]O
The hydrogen atom on reactant side is 12 while on product side it is 2, so multiply H[tex]_2[/tex]O by 6.
C[tex]_5[/tex]H[tex]_12[/tex]+O[tex]_2[/tex][tex]\rightarrow[/tex]5CO[tex]_2[/tex]+6H[tex]_2[/tex]O
To multiply oxygen we need to multiply O[tex]_2[/tex] by 8.
C[tex]_5[/tex]H[tex]_12[/tex]+8O[tex]_2[/tex][tex]\rightarrow[/tex]5CO[tex]_2[/tex]+6H[tex]_2[/tex]O
Therefore, the balanced equation is
C[tex]_5[/tex]H[tex]_12[/tex]+O[tex]_2[/tex][tex]\rightarrow[/tex]5CO[tex]_2[/tex]+6H[tex]_2[/tex]O
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which will dissolve faster in a cup of hot tea? a. tablespoon of sugar b. cube of sugar c.2 cubes of sugar
Tablespoon of sugar will dissolve faster in a cup of hot tea
Generally, a solute dissolves faster in a warmer solvent than it does in a cooler solvent because particles have more energy of movement. For example, if you add the same amount of sugar to a cup of hot tea and a cup of iced tea, the sugar will dissolve faster in the hot tea.
In the above case we can say that a tablespoon of sugar will dissolve faster in a cup of hot tea because when we compared table spoon of sugar with cube of sugar the surface area in grounded sugar is more and for cube of sugar the surface area is less and hence will take more time to dissolve.
So we can conclude that tablespoon of sugar will dissolve faster in a hot cup of tea.
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The average kinetic energy of the molecules in a gas sample depends only on the temperature, . However, given the same kinetic energies, a lighter molecule will move faster than a heavier molecule, as shown in the equation for rms speed
rms speed=3ℳ⎯⎯⎯⎯⎯⎯⎯⎯⎯√
where =8.314 J/(mol⋅K) and ℳ is molar mass in kilograms per mole. Note that a joule is the same as a kilogram‑meter squared per second squared (kg·m2/s2).
What is the rms speed of O2 molecules at 371 K?
rms speed:
m/s
What is the rms speed of He atoms at 371 K?
rms speed:
m/s
The rms speed of O₂ and He molecules at 371 K are 384.8m/s and 192.4m/s respectively.
What is the Root mean square (rms) speed?This refers to the way to calculate a single velocity value for the particles. The average velocity of a gas particle can be calculated using the root mean square velocity formula.
rms speed =[tex]\sqrt{3RTM}[/tex]
Where,
Root Mean Square speed, rms speed
Universal gas Constant,R =8.314 J/(mol⋅K)
Absolute Temperature,T =371 K
Molar mass of substance,M
From the question:M of O₂= 2*8
=16
M of He = 2*2
= 4
rms speed O₂ =[tex]\sqrt{3RTM}[/tex]
= [tex]\sqrt{(3*8.314* 371*16)}[/tex]
=384.8m/s
rms speed He =[tex]\sqrt{3*8.314 *371*4}[/tex]
=192.4m/s
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Why Boron trichloxide is monomer and aluminium trichloxide is dimer
Answer: The bond length and atomic size of boron in BCl3 are smaller than in AlCl3 so this leads to interatomic repulsion so BCl3 could not accept another BCl3 via a dative bond because it leads to more repulsion and finally breaking of dimer.
True or False: Neurons transmit information in one direction only.
False
True
Sensory receptors pick up on senses from outside the body. To respond to the sense, what path does the information follow?
motor neuron - interneurons – sensory neuron
interneurons – motor neuron – sensory neuron
sensory neuron – motor neuron – interneurons
interneurons – sensory neuron – motor neuron
motor neuron - sensory neuron - interneurons
sensory neuron – interneurons – motor neuron
Which neuron carries signals from the hand to the spinal cord?
sensory neuron
motor neuron
interneuron
Which neuron carries signals in the body around the spinal cord?
motor neuron
interneuron
sensory neuron
Which neuron carries signals from the spinal cord to the hand?
sensory neuron
motor neuron
interneuron
Why would this path of neurons not work to perform a reflex?
Select all that apply.
the motor neuron should be the interneuron
the motor neuron should be the sensory neuron
the sensory neuron should be the interneuron
the interneuron should be the motor neuron
1) Neurons transmit information in one direction only. it is true
2) Sensory neuron - interneurons - motor neuron.
3) sensory neuron.
4) motor neuron
5) motor neuron.
Neurons transmit information in one direction only.
Sensory receptors pick up on senses from outside the body. To respond to the sense, path does the information follow as:
Sensory neuron - interneurons - motor neuron.
neuron carries signals from the hand to the spinal cord is sensory neuron.
neuron carries signals in the body around the spinal cord is moto neuron.
neuron carries signals from the spinal cord to the hand is motor neuron.
Thus, 1) Neurons transmit information in one direction only. it is true
2) Sensory neuron - interneurons - motor neuron.
3) sensory neuron.
4) motor neuron
5) motor neuron.
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A two blocks of copper at different temperatures are placed into contact with each other. The first block is 32.5 g and starts at a temperature of 68.7 oC. The second block is 43.7 g and starts at a temperature of 35.3oC. If the specific heat capacity of copper is 0.385 J/(g oC), what will the final temperature be?
Here the heat is transferred from the hot body to the colder body thus using the calorimetric equation for each copper block, the final temperature of the system is obtained as 61.6 °C.
What is calorimetry?Calorimetry is an analytical tool used to determine the heat energy absorbed or released by the system. The expression relating the heat energy q, mass m and the specific heat capacity c and temperature difference ΔT is written as follows.
q = mc ΔT.
It is given the heat capacity of copper is 0.385 J/°C g. The final temperature for both blocks will be equal and let it be x°C. Now the heat energy of the two blocks are equated as follows:
32.5 g × 0.385 (68.7 - x°C ) = 43.7 g × 0.385 ( x - 35.3°C )
2232.7 - 32.5 x = 43.7 x - 1542
690.7 = 11.2 x
x = 61.66 °C .
Hence, the final temperature of the system is 61.66 °C.
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How many g of NaCl (M, = 58.44 g/mol) are needed to make 3500 ml of a 5 M
solution?
1022.7 g of NaCl are needed to make 3500 ml of 5M solution
What is molarity?
It is defined as the total number of moles of solute per litre of solution.
M = n / V
where
M = molarity ( 5M )
n = no of moles
V = volume ( in litres)
For volume in mL
M = n * 1000 / V
As we know, n = w / M.M
where
n = no of moles
w = given mass ?
M.M = molar mass (58.44)
Substituting all the formulas:
M = n / V
= (w / M.M ) * (1000/ V in mL)
w = (M * M.M * V ) / 1000
= ( 5 * 58.44 * 3500 )/ 1000
= 1022.7 g
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What is the name of this molecule?
Based on the IUPAC nomenclature of organic compounds, the name of the molecule is 5-ethyl-3-octenal.
What is the IUPAC nomenclature of compounds?The IUPAC nomenclature is the naming convention adopted by the International Union of Pure and Applied Chemistry.
In the naming of organic compounds, the name is divided into three parts;
the root name which is the name of the longest straight-chain hydrocarbonthe suffix which is the name of the principal substituent groupthe prefix which is the name of other substituent groups present in the organic compoundLearn more about IUPAC nomenclature at: https://brainly.com/question/17194396
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1. Consider the equation: C2H4+O2 CO2 + H₂O
Is this equation balanced? Why or why not?
(a) If it is not balanced, how can you make it balanced?
The balanced chemical equations are as follow:
C2H4 + 3O2 ------- 2CO2 + 2H2O
What is Balanced chemical equation?A chemical equation is said to be balanced if the number of atoms or molecules of elements on reactant side is equal to the number of atoms or molecules of elements on product side.
This is based on the law of conservation of mass which says that the mass neither be created nor
be destroyed but it transferred from one form to another form.
The chemical equation is
C2H4 + 3O2 ------- CO2 + H2O
Since, the number of atoms of carbon on reactant side is 2 but on product side, it is 1. So, multiply CO2 by 2. It is balanced.
The number of atoms of Oxygen on reactant side is 2 but on product side, it is 5. So, multiply O2 by 3. It is balanced.
The number of atoms of Hydrogen on reactant side is 4 but on product side, it is 2. So, multiply H2O by 2. It is balanced.
Thus, we concluded that the balanced chemical equations are as follow:
C2H4 + 3O2 ------- 2CO2 + 2H2O
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Where would contour farming and terraces be most likely to be found?
The food for the plant, the sugar glucose, is written how chemically:
The food for the plant , the sugar glucose is written chemically as : C₆H₁₂O₆.
The glucose is a simple sugar. the glucose contains six carbon atoms and one aldehyde group. Glucose exist in two form the open chain and the ring structure. The glucose is used by the plants for energy. glucose provide energy to living things. glucose helps plant to live and grow. plants use the process of photosynthesis to convert the water , sunlight and carbon dioxide into oxygen and sugar called glucose. written as : C₆H₁₂O₆.
Thus, The food for the plant , the sugar glucose is written chemically as : C₆H₁₂O₆.
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A 0.470 g sample of a metal, M, reacts completely with sulfuric acid according to M(s)+H2SO4(aq)⟶MSO4(aq)+H2(g) A volume of 217 mL of hydrogen is collected over water; the water level in the collecting vessel is the same as the outside level. Atmospheric pressure is 756.0 Torr, and the temperature is 25 °C. The vapor pressure of water at 25 °C is 23.8 Torr. Calculate the molar mass of the metal.
The molar mass when rected with sulphuric acid to liberate 249 mL of hydrogen gas is 48 g/mol
The volume (V) = 249 mL = 249 / 1000 = 0.249 L
Pressure (P) = 1.0079 – 0.03167 = 0.97623 bar
The temperature (T) = 25.0 °C = 25 + 273 = 298 K
Gas constant (R) = 8.314×10¯² bar.L/Kmol
Number of mole (n) =?
n = PV / RT
n = (0.97623 × 0.249) / (8.314×10¯² × 298)
n = 0.0098 mole
How to determine the mole of the metal
Balanced equation
M(s) + H₂SO₄(aq) —> MSO₄(aq) + H₂(g)
From the balanced equation above,
1 mole of M reacts to produce 1 mole of H₂.
Therefore,
Mole of metal = 0.0098 mole
Mass of metal = 0.539 g
Molar mass is given as mass upon mole
Molar mass of metal = 0.470 / 0.0098
Molar mass of metal = 48 g/mol
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MULTIPLE CHOICE QUESTION
When an electron is removed from Cesium,
what element does it LOOK LIKE?
Krypton
Xenon
Neon
Argon
Answer:
B. Xenon
Explanation:
On the periodic table, every element has an "atomic number". This number states how many electrons there are in an element.
Cesium's atomic number is 55, which indicates it has 55 electrons. 55 minus 1 is 54 electrons. The element that has 54 electrons is Xenon, whose atomic number is 54.
. Determine the mass percent of sulphur (S) in penicillin (CH₂N₂SO₂) (C = 12, H = 1, N = 14, S = 32,0 = 16).
The mass percent of sulfur in the sample (CH₂N₂SO₂) is 30.2 %.
The mass percentage is used to explicitly the concentration of a solution while the mass of a solute and the mass of an answer are given:
Calculation:-
given mass of the sample (CH₂N₂SO₂) is = 106 g
mass of sulfur = 32 g
Mass percentage=Mass of Sulphur / Mass of the compound.
= 32g / 106 g × 100
= 30.2 %
Mass percent composition is calculated by evaluating the molar mass of detail in a compound to the overall molar mass of the entire compound. The very last calculation yields a percentage this is beneficial while evaluating numerous compounds with one another.
This component enables the showing of the lowest whole range of moles and the relative quantity of atoms of every element in a compound. With the assistance of the empirical system, chemists can also calculate the actual molecular formula. This formulation indicates the exact range of atoms inside the compound.
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2. Beaker A contains 100 cm³ of 0.02 M NaOH and beaker B contains 200 cm³ of 0.03 M Na₂CO3. A Laboratory Technician decided to mix two solutions into a 500 cm³ beaker C. What is the molarity of the solution in beaker C assuming there was no loss in volume during mixing of two solutions?
The molarity of the solution in beaker C is 0.028 M.
The maximum not unusual manner to explicitly answer concentration is molarity (M), that's described as the amount of solute in moles divided with the aid of the extent of solution in liters: M = moles of solute/liters of solution. a solution this is 1.00 molar (written 1.00 M) incorporates 1.00 mole of solute for each liter of solution
Given ;
V = 0.1 L
M=0.02 M
V₂ = 200 cm³ = 0.2 L
M = 0.03 M
M₁V₁ + M₂V₂ = MV
V = M₁V₁ + M₂V₂ / M
= 0.02*0.1+0.03*0.2*2/0.5
= 0.028 M
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What is the mass (in grams) of 11.50 L of propane vapor (C₂H₂) at
STP? R=0.08314 L-bar/mol-K.
The mass in grams of 23.0 L of propane vapor at STP is 22.968 g.
How do you explain mole concept ?The definition of a mole is a measure of material quantity. It is a unit of measurement used to determine how many elementary particles make up a specific material.It has a precise definition of 6.022 1023 elementary entities. Depending on the kind of substance, the elementary unit may be a molecule, atom, or ion. Avogadro's number is the quantity of elementary particles in a mole.As a good method of expressing the quantities of reactants and products, it is commonly used in chemistry.For all intents and purposes, the mass of one mole of a substance measured in grams and daltons is roughly same.The units for molar mass are grams per mole. For molecules, the atomic mass is equal to the molar mass, or weight, in grams that each mole of atoms contains.Given data :
No of moles=23/44=0.522 molesNo of moles in 44 liter = 0.522 moles.So the mass of 23 L of propane is 44×0.522 = 22.968 g.
Therefore, 23 liters of propane contain 22.968 g of propane at STP.
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How do specialized brown fat cells take advantage of oxidative phosphorylation to generate heat?.
Specialized brown fat cells take advantage of oxidative phosphorylation to generate heat as they contain a carrier protein that dissipates the proton gradient across the inner mitochondrial membrane.
oxidative phosphorylation is when in mitochondrion the proton gradient does is the production of ATP from ADP. This depends on the oxidative reaction happening in the mitochondria. During oxidative phosphorylation electrons from NADH and FADH₂ combine with oxygen and then releases the energy from the oxidation or reduction reaction that is used to synthesis of ATP from ADP
Thus, Specialized brown fat cells take advantage of oxidative phosphorylation to generate heat as they contain a carrier protein that dissipates the proton gradient across the inner mitochondrial membrane.
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5. What will happen to warmer ocean water?
It will rise.
It will evaporate.
It will sink.
It will freeze.
Nowadays, oceans are much warmer than the previously one. The oceans are heating very fastly nowadays due to the change in a climate. When ocean is warmer, it will rise the sea levels.
When the ocean is warmer or the water is heated, it takes up more space. Due to this, rise in the sea levels are occurred. In addition to this, warming of oceans causes faster melting of ice sheets in the ocean, which rises the sea level even more. Rising sea level causes more flooding, intense and long lasting tropical storms.
Therefore, warmer ocean water rises the sea level. Hence, the first option is correct.
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Answer:
It will rise up
Explanation:
Hope this helps
True or False: The Kinetic Molecular Theory states that particles move in random, straight line paths.
↳
An unknown compound has a density in the gas phase of 1.14 g/L at 125 °C and 175 Torr pressure. What is the molar mass of this compound?
a. 21.6 g/mol
b. 162 g/mol
c. 273 g/mol
d.50.8 g/mol
e. 869 g/mol
21.6 g/mol is the molar mass of this compound.
p=175 Torr
v= 1
r=0.82
t= 125 °C= 398 K
density= mass/volume
mass=density × 1
mass=1.14 g/L ×1
mass=1.14 g
PV=nRT
n=PV/RT
n=175×1÷0.82×398
n=0.53 mol
moles= given mass/molar mass
molar mass= given mass/moles
molar mass=1.14 /0.53
molar mass=21.6
Mass per mole is a definition of molar mass. In other terms, molar mass is the total mass of all the atoms in a substance that makes up a mole. It is measured in gram-per-mole units.
For elements or molecules, molar mass is displayed. The molar mass is simply the element's mass represented in atomic mass units in the case of single elements or individual atoms. To put it another way, an atom's atomic mass and molar mass are exactly equal. Molar mass can be used to determine a particle's identification because it is equivalent to atomic mass for individual atoms.
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Earth is in constant motion. Which of the following does Earth's rotation on its axis cause?
Earth's rotation or Earth's spin is the rotation of planet Earth around its own axis, as well as changes in the orientation of the rotation axis in space. Earth rotates eastward, in prograde motion. As viewed from the northern polar star Polaris, Earth turns counterclockwise.
The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is the point in the Northern Hemisphere where Earth's axis of rotation meets its surface. This point is distinct from Earth's North Magnetic Pole. The South Pole is the other point where Earth's axis of rotation intersects its surface, in Antarctica.
Earth rotates once in about 24 hours with respect to the Sun, but once every 23 hours, 56 minutes and 4 seconds with respect to other distant stars (see below). Earth's rotation is slowing slightly with time; thus, a day was shorter in the past. This is due to the tidal effects the Moon has on Earth's rotation. Atomic clocks show that a modern day is longer by about 1.7 milliseconds than a century ago,[1] slowly increasing the rate at which UTC is adjusted by leap seconds. Analysis of historical astronomical records shows a slowing trend; the length of a day increased about 2.3 milliseconds per century since the 8th century BCE.[2]
Scientists reported that in 2020 Earth had started spinning faster, after consistently spinning slower than 86,400 seconds per day in the decades before. On June 29, 2022, Earth's spin was completed in 1.59 milliseconds under 24 hours, setting a new record.[3] Because of that trend, engineers worldwide are discussing a 'negative leap second' and other possible timekeeping measures. [4]
This increase in speed is thought to be due to various factors, including the complex motion of its molten core, oceans, and atmosphere, the effect of celestial bodies such as the Moon, and possibly climate change, which is causing the ice at Earth's poles to melt. The masses of ice account for the Earth's shape being that of an oblate spheroid, bulging around the equator. When these masses are reduced, the poles rebound from the loss of weight, and Earth becomes more spherical, which has the effect of bringing mass closer to its centre of gravity. Conservation of angular momentum dictates that it spins faster, like a spinning ice skater drawing their arms in, causing them to spin faster.
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in the following chemical reaction, which element is the oxidizing agent? 3 sn(no₃)₂(aq) 2 fe(s) → 2 fe(no₃)₃(aq) 3 sn(s)
The oxidizing agent here is the [tex]Sn^{2+}[/tex]
How do we know the oxidizing agent?We know that in a chemically reaction, there is the specie that looses electrons in the reaction and there is the specie that gains electrons in the reaction. The specie that looses electrons is the reducing agent while the specie that gains electrons is the oxidizing agent.
Now we can see that the specie that gains electrons and now has a decrease in the oxidation of the specie is the tin atom thus that is the oxidizing agent.
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PLEASE HELP 85 POINTS!
Aluminum chloride is a white compound that contains one aluminum atom and three chlorine atoms.
Which model is the best representation of aluminum chloride?
O A.
B.
Al
Cl
Al
Cl
O C.
D.
Cl
Al
Al
Cl
Answer:
Model B (in image) would the best representation of aluminum chloride.
Explanation:
It's the only model the has three chlorine atoms and one aluminum atom.
Additionally, Cl can only bond once, so it can't be bonded to multiple different atoms. Also, Al needs to have more than one bond to achieve the octet rule.
What is determined by the distance at which the lowest potential energy is achieved and the distance at which positive charges have the least repulsion?.
The positive charges in the two nuclei start to repel one another as the atoms get closer to one another, which raises the potential energy. The distance at which the lowest potential energy is attained determines the bond length.
How is bond length influenced by location?The internuclear distance at which the potential energy minimum occurs dictates the bond length. The equilibrium bond length is a more appropriate term since it reflects the distance at which the two atoms bounce as a result of thermal motion. In general, stronger bonds are formed when bonds are shorter.
Does the potential energy of bonds increase?When atoms are bound to other atoms, the majority of them achieve a lower potential energy. At this distance, the system's potential energy is supposedly equal to zero.
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How is a chemical equation similar to a mathematical equation, and how do they model a natural phenomenon?
The chemical equation similar to a mathematical equation as equal sign means both sides . The differential equation is used as a model a natural phenomenon.
The chemical equations and mathematical equation have lot of common things. The balancing of equation and algebraic equation have similarities. we use differential equation is used as a model a natural phenomenon. chemical equation like the math's equation must be balanced. some basic concepts of math's are used in chemistry to balance equation.
Thus, The chemical equation similar to a mathematical equation as equal sign means both sides . The differential equation is used as a model a natural phenomenon.
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Answer:
The chemical equation similar to a mathematical equation as equal sign means both sides.
Explanation:
Chemical equations and mathematical equations have a lot in common. The equal sign in a math equation means that both sides, however they're written, are equivalent expressions of the same thing: 2(3) - 4 = 5(2) - 8 ← Try it for yourself. The arrow or arrows in a chemical equation mean the same thing.
Two electrons in the 1s orbital must have different spin quantum numbers to satisfy.
The electron pair in the 1s orbital satisfies the exclusion principle because they have opposite spins, or spin quantum numbers that are +1/2 and -1/2, which are different from each other. Compared to electrons in the 1s orbital, those in the 2s level have a different quantum number.
How does the Pauli exclusion principle work?According to Pauli's Exclusion Principle, no two electrons in the same atom can have values for all four of their quantum numbers that are exactly the same, put alternatively. There can never be more than two electrons in a single orbital, and they must also have opposing spins.
What is the Pauli exclusion principle, exactly, and how does it work?According to the Pauli exclusion, no two electrons can have the exact same set of quantum numbers.
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how to balance the following precipitation reaction
K3PO4 + Cu(NO3)2
The balanced equation of the precipitation reaction would be [tex]3Cu(NO_3)_2 + 2K_3PO_4 -- > Cu_3(PO_4)_2 + 6KNO_3[/tex]
What is precipitation?Precipitation reactions are reactions involving two aqueous salts leading to the production of, at least, one insoluble salt or a precipitate.
In the reaction given, [tex]K_3PO_4[/tex] reacts with [tex]Cu(NO_3)_2[/tex]. The two reactants are soluble and will exchange radicals during the reaction to produce [tex]Cu_3(PO_4)_2[/tex], an insoluble salt or a precipitate, and [tex]KNO_3[/tex], a soluble salt.
In order to balance the equation, it must be made to obey the law of conservation of atoms. According to the law, atoms of elements that participate in chemical reactions may change forms but are always conserved in terms of number.
In other words, the number of atoms of each element in the reactants must be equal to their respective numbers in the products.
Thus, the equation that shows that the precipitation reaction obeys the law of conservation of atoms is [tex]3Cu(NO_3)_2 + 2K_3PO_4 -- > Cu_3(PO_4)_2 + 6KNO_3[/tex]
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A student is designing an investigation of the distribution of charges in conductors. She will use two conducting spheres mounted on insulating stands in the investigation. The conducting spheres are shown.
Explanation:
explain how the electron was discovered
Since the charge is evenly distributed between the two spheres, each sphere will have a charge of +10 μC. Therefore, the charge on one of the spheres is +10 μC.
What is distribution of charges in spherical conductors ?The distribution of charges in spherical conductors refers to the way in which electric charges are distributed on the surface of a conductor that has a spherical shape.
When a conductor is charged, the charges distribute themselves over its surface in such a way that the electric field within the conductor is zero.
The spheres are connected with a wire and allowed to come to the same charge, which means that the total charge is evenly distributed between the two spheres.
The total charge is (-10 μC) + (+30 μC) = +20 μC. Since the charge is evenly distributed between the two spheres, each sphere will have a charge of +10 μC. Therefore, the charge on one of the spheres is +10 μC.
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Your question is incomplete. But your complete question is as follows:
A student is designing an investigation of the distribution of charges in conductors. She will use two conducting spheres mounted on insulating stands in the investigation. The conducting spheres are shown.
One has a charge of -10 μC and the other has a charge of +30 μ C. They are connected with a wire and allowed to come to the same charge.
What is the charge on one of the spheres?
