The continuation of the electronic configuration would be [tex]3p^6, 4s^6, 3d^4.[/tex]
What is an electron configuration?Electronic configuration, also called electronic structure, is the arrangement of electrons in energy levels around an atomic nucleus.
The initial p-orbital (the [tex]3p^3[/tex]) is incompletely filled. Thus, the first thing would be to fill it completely ([tex]3p^6[/tex]) so as to obey the orbital-filling rule. This leaves 6 more electrons.
After 3p orbital, the next orbitals are 4s, 3d, 4p, 5s, etc.
The 4s orbital will take a maximum of 2 electrons, leaving 4 more electrons.
Next would be the 3d orbital which can take a maximum of 8 electrons, but only 4 electrons are left.
Thus, the electronic configuration would be [tex]3p^6, 4s^6, 3d^4.[/tex]and elements is Vanadium (V).
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how many moles of oxygen from the are needed to consume 2.49 mol c55h104o6
Select all statements that correctly describe the stability of eclipsed and staggered conformers. Multiple select question. Staggered conformers possess torsional strain. Eclipsed conformers possess torsional strain. Staggered conformers are lower in energy than eclipsed conformers. Electron-electron repulsion between bonds in an eclipsed conformer may contribute to the low energy of this conform
Eclipsed conformers possess torsional strain and Staggered conformers are lower in energy than eclipsed conformers are TRUE about the stability of conformers.
What does 'eclipsed conformers' mean?Eclipsed conformers are molecular arrangements where two substituents are very close and thus produce torsion.
Moreover, Staggered conformers are molecular arrangements where substituents are found at a maximum length.
In conclusion, Eclipsed conformers possess torsional strain and Staggered conformers are lower in energy than eclipsed conformers are TRUE about the stability of conformers.
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Ahmed doesn't believe in electromagnetism so he makes an electromagnet to prove his teacher wrong. To his surprise, the electromagnet works and he's able to pick up metal objects with it. Even still, he's not satisfied with his electromagnet because it's very weak. What can he do to make it stronger?
Answers: use a weaker battery
1. use a stronger battery
2. use a plastic nail
3. glue the wire to the nail
4. wrap the wire around the nail fewer times
Answer:
1) Use a stronger battery
Explanation:
I'm going to quote Northeastern University (I could try to type out an explanation but this will probably be more concise)
"Electromagnets are made of coils of wire with electricity passing through them. Moving charges create magnetic fields, so when the coils of wire in an electromagnet have an electric current passing through them, the coils behave like a magnet."
4) So, if the coils are creating a moving charge, and there are more coils, each coil will be "setting up" its own magnetic field. This means that less coils will make the electromagnet weaker
2) Because it is an electromagnet, a plastic nail is not going to produce the same effect. An electromagnet is picking up metal, and it is not picking up plastic. This is because plastic (a material with low permeability) does not have a magnetic field that is able to interact with a magnet.
[Permeability is a measure of how easily magnetic lines of force can pass through a material.]
3) There's not really a point that I can imagine of gluing the wire to the nail. Glue would put more distance between the nail and the magnet than nothing being there at all.
1) More voltage in a battery produces a larger current in the wire. This means that the strength of an electromagnet is affected by the voltage/strength of the battery. So, a stronger battery would make the electromagnet stronger, and a weaker battery would make the electromagnet weaker.
The electromagnet works, and he's able to pick up metal objects with it, he does to make it stronger to use a stronger battery. Therefore, option 1 is correct.
What is electromagnet ?An electromagnet is a type of magnet where an electric current creates the magnetic field. The wire that makes up an electromagnet is typically twisted into a coil. A magnetic field is produced by a current flowing through the wire and is concentrated in the hole in the center of the coil.
Electrical devices including motors, generators, speakers, computers, and MRI machines cannot be built without electromagnets. They are well known for their ability to lift and move heavy magnetic objects, such as scrap iron.
Many electromagnets have an advantage over permanent magnets because they can be easily turned on and off, and increasing or decreasing the amount of electricity flowing around the core can control their strength.
Thus, option 1 is correct.
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Calculate the volume of hydrogen chloride gas, HCl at s.t.p that would yield 1.2dm3 of 0.15mol/dm3 aqueous HCl solution. (Molar volume of a gas at s.t.p = 22.4dm3)
The volume of hydrogen chloride gas, HCl at s.t.p yielded is determined as 4.032 dm³.
Number of moles of the HCl gas yieldThe number of moles of the gas yield is calculated as follows;
n = 1.2 dm³ x 0.15 mol/dm³
n = 0.18 mole
one mole of HCl gas at stp = 22.4 dm³
0.18 mole = ?
= 0.18 x 22.4 dm³
= 4.032 dm³
Thus, the volume of hydrogen chloride gas, HCl at s.t.p yielded is determined as 4.032 dm³.
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For compounds of similar size and/or molar mass, which attractive force would result in the highest melting point
The compounds with high Intermolecular forces , will result in the highest melting point.
What is Melting Point ?The temperature at which the solid and liquid form of a solvent are in equilibrium and applying any more heat will lead to melting of the solid into liquid is called Melting Point.
The Intermolecular force that would result in highest melting point is the Ion-Ion interaction , the more the bonding the higher will be the melting point.
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A container of carbon dioxide (CO2) has an initial temperature of 170 K with a pressure of 50 kPa. When the container is heated the pressure is measured at 283 kPa. The volume is constant at 12 L throughout. What is the final temperature of the carbon dioxide (CO2)?
A. 1179.16 K
B. 6.94 K
C. 962.2 K
D. 391.0 K
Answer:
962.2 K
Explanation:
Ideal Gas Law Equation:
PV = nRT
Writing a Equation to find T2:
PV = nRT
(P1V)/(nT1) = R = (P2V)/(nT2)
(P1)/(T1) = R = (P2)/(T2) V and n cancel out since they are constant.
(P1)/(T1) = (P2)/(T2)
T2 = (P2)(T1)/(P1)
Substituting Into the Equation:
T2 = (283 kPa * 170 K)/(50 kPa)
T2 = 962.2 K
6. Explain the impact on fresh water of:
a. Farming wastes
b. Household pollutants
c. Industrial wastes
d. Erosion
e. Oil and Gasoline
f. heat
7. In your opinion which of the above-mentioned pollutions is more dangerous?
Fresh water pollutants are substances which pollute fresh water and industrial waste, is most harmful fresh water pollutant to man and aquatic organisms.
What are pollutants?Pollutants are substances which cause harm when they are present in the environment.
Pollutants include chemicals such as petroleum and material such as sewage.
The presence of pollutants in freshwater results in water pollution and make the water unfit for drinking purposes and also harms aquatic life in freshwaters.
Some freshwater pollutants include:
Farming wastesHousehold pollutantsIndustrial wastesErosionOil and GasolineheatOf these pollutants, the most dangerous fresh water pollutant is industrial wastes as they kill aquatic organisms most due to the presence of harmful chemicals in them.
Therefore, fresh water pollutants such as industrial waste is most harmful to man and aquatic organisms.
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What is a real-life example of equilibrium and what would happen if there was a shift in the system of that example?
Answer:
Refrigerator
Explanation:
Think about it. Equilibrium is between 2 "places", and if you didn't open the fridge, there would be a buildup of cold air.
Because of that buildup, it would keep getting colder until it isn't possible to get cold anymore. That is equilibrium.
However, if you were to open the door for a very, very long time, you would lower the temp. inside the fridge, therefore causing for the room you are in to be slightly colder, and the fridge to decrease in cold. The fridge will still be slightly cold, but it won't be lukewarm if you leave it for 2 hours. (Unless it's broken)
That is equilibrium :)
I have ten moles of iron atoms in the reactant side of a reaction. Do I have enough information to determine how many moles of iron atoms I will have following the reaction? If so, how many moles of iron atoms will I have at the end of a reaction? If not, what else do I need to know?
Answer:
See below
Explanation:
If your reaction equation is balanced, you will know the number of Fe atoms following the reaction.....it will be the same on both sides of the equation.
Which planet do scientists believe prevented the asteroids in the asteroid belt from forming a planet?.
The planet that scientists believe prevented the asteroids in the asteroid belt from forming a planet is Jupiter.
What are asteroids?
Asteroids are known to be leftovers from the formation of the solar system for about 4.6 billion years ago.
Why Jupiter prevented asteroids
The gravity in Jupiter is so strong, that it caused the instability of asteroid orbits within the Kirkwood gapsIt prevented planetary bodies from forming in between Mars and itselfIt also caused small objects to collide with each other and fragment into the asteroids seen todayTherefore, Jupiter made asteroids form group of debris, rather than forming a planet.
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What is the mass of 5.00 moles of KaS04?
A
34.8 grams
B
174 grams
C
675 grams
D
870 grams
Answer: D
Explanation:
I assume you meant [tex]\text{K}_{2}\text{SO}_{4}[/tex].
The atomic mass of potassium is 39.0983 g/mol.The atomic mass of sulfur is 32.065 g/mol.The atomic mass of oxygen is 15.9994 g/mol.So, the formula mass of potassium sulfate is 2(39.0983)+32.065+4(15.9994)=174.2592 g/mol.
So, 5.00 moles have a mass of (5.00)(174.2592), which is about 870 g
Why can alkaline batteries not be recharged
Answer:
The biggest risk with recharging alkaline batteries is leakage. As you probably know, alkaline batteries leak even under normal circumstances. Internal off gassing, made worse by heat, creates pressure that can breach battery seals. Therefore, the risk of leakage is an even bigger risk when recharging.
when 2 moles of C6H6 react with excess Oxygen gas, how many moles of water are produced?
C6H6 + 9 O2 ------> 6CO2 + 6 H20
Answer:
12 moles H₂O
Explanation:
To find the amount of water produced, you need to use the given amount and multiply it by the mole-to-mole ratio from the equation. These numbers are the coefficients of the molecules you are converting from and to. When writing the ratio, make sure to arrange it in a way that allows for the cancellation of units.
1 C₆H₆ + 9 O₂ ----> 6 CO₂ + 6 H₂O
2 moles C₆H₆ 6 moles H₂O
--------------------- x ------------------------- = 12 moles H₂O
1 mole C₆H₆
Classify the following as mixtures or pure substances. (a) the vegetable soup you had for lunch (b) the fertilizer your dad spreads on the front lawn in the spring (c) the salt you sprinkle on your French fries (d) the hydrogen peroxide you cleaned a cut finger with
(a) The vegetable soup you had for lunch: mixtures substances
(b) The fertilizer your dad spreads on the front lawn in the spring: mixtures substances
(c) the salt you sprinkle on your French fries: pure substances
(d) the hydrogen peroxide you cleaned a cut finger with: pure substances
What are mixtures?
In chemistry and related fields, a mixture refers to a substance that is composed of two or more substances. This is the opposite of a pure substance that has not been combined with others. In the case of vegetable soup, this is a mixture because it integrates multiple substances such as water, salt, vegetables, etc.
On the other hand, a mixture is classified as homogeneous if the elements are completely integrated, and the final substance is uniform or as heterogeneous if the mixture is not uniform. In the case of the soup, this can be classified as a heterogeneous mixture because in most cases you can identify the elements in it such as pieces of vegetables and therefore it is not a uniform or homogeneous mixture.
Thus, this could be the answer.
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how many grans of NaoH Are needed to neutralize grans of H2So4
Answer :]
to convert from g NaOH to mol NaOH. = 1.48 g NaOH are needed to neutralize the acid.
A balloon inflated in a room at ayo℃ has a volume
of 4,004, the balloon is then heated to a tempicture of
58°C. What is the new volume if the pressure remains constient?
Answer:
new volume = 4.458 Liters
Explanation:
A balloon inflated in a room at 24°c has a volume of 4.00Liters The balloon is heated to a temperature of 58°c.What is the new volume if the pressure remains constant
charles law
volume1/temperature1 = volume2/temperature2
temperature has to be converted to kelvin
temperature 1 = 24+273=297
temperature 2 = 58+273=
4/297 = volume2/331
volume2 = (4*331)/297
volume2 = 4.45791245791 Liters
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The conductance of the electric current through the electrolytic solution increases with
a)decrease in dilution
b)increase in dilution
c)increase in concentration
d)low degree of ionization
The conductance of the electric current through the electrolytic solution increases with increase in concentration.
What is electrolytic solution?
Electrolytic solutions are solutions that are capable of conducting an electric current due to presence of ions.
The current flowing in an Electrolytic solutions is calculated as;
Q = It
I = Q/t
where;
Q is chargesIncrease in the concentration of the charges, increases the amount of charges in the solution and hence the conductance of the solutions will increase as well.
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How many atoms are in 3.2 moles of N2
Answer:
38.54 x 10^23 atoms of N2
Explanation:
Each mole contains Avagadro's Number ( 6.022 x10^23) of particles
3.2 x 6.022 x 10^23 = 19.27 x 10^23 MOLECULES
N2 is TWO atoms soooo 2 x 19.27 x 10^23 = 38.54 x 10^23 atoms
Ammonia is produced by reacting hydrogen and nitrogen gases. If 30.0L of hydrogen is mixed with 12.0L of nitrogen at the same temperature and pressure, what is the maximum volume of ammonia gas that could be produced?
[tex](2.4L)NH_3[/tex] is the maximum volume of ammonia gas that could be produced.
What is a mole?A mole is a very important unit of measurement that chemists use. A mole of something means you have 602,214,076,000,000,000,000,000 of that thing, like how having a dozen eggs means you have twelve eggs.
Here is the balanced equation:
[tex]N_2 +3H_2[/tex] → [tex]2NH_3[/tex]
At STP, 1 mole has a volume of 22.4 Liters. To do a dimensional analysis conversion from Liters to moles:
Please observe that Liters and moles vary directly, therefore, we can simply multiply each of the coefficients (that represent moles) by
1.2 L to obtain the volumes:
[tex]\frac{N Litres}{1} \frac{1}{22.4 Litres} =\frac{N }{22.4} mole[/tex]
[tex](1.2L)N_2+(3.6L)H_2 = (2.4L)NH_3[/tex]
Hence, [tex](2.4L)NH_3[/tex] is the maximum volume of ammonia gas that could be produced.
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The distance between city A and city B is 22 miles. The distance between city B and city C is 54 miles. The distance between city A and city C is 51 miles.
What type of triangle is created by the three cities?
an acute triangle, because 222 + 542 >512
an acute triangle, because 222 + 512 >542
an obtuse triangle, because 222 + 542 >512
an obtuse triangle, because 222 + 512 >542
The type of triangle that is created by the three cities is an obtuse triangle, because 22 + 51 > 54.
What is an obtuse triangle?
Obtuse triangle is a type of triangle in which any of its angle is greater than 90 degrees, and the sum of the interior angles must by equal to 180 degrees.
Considering length AB and AC = 22 miles + 51 miles = 73 miles
The sum of length AB and AC is greater than length BC, and the opposite angle of side BC is greater than 90 degrees.
Thus, the type of triangle that is created by the three cities is an obtuse triangle, because 22 + 51 > 54.
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What is the name of the configuration management procedure that involves the collection of information about a system under normal operating conditions, to be used as a comparison when conditions are abnormal
The name of the configuration management procedure that involves the collection of information about a system under normal operating conditions is Baselining.
What is Baselining?Baselining is a management process used to analyze a collection of information about a particular system.
This procedure (Baselining) is well known to analyze computer performance in a given network.
In conclusion, the name of the configuration management procedure that involves the collection of information about a system under normal operating conditions is Baselining.
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A new band sensation is playing a concert and recording it for a live album to be released this summer. select all the statements that are true for band producing sound.
a) the frequency or amplitude of the sound waves will not change
b) the frequency or amplitude of the sound waves will change if the singer varies their voice
c)producing sound changes the wane from an electromagnetic wave to a mechanical wave
d)the produced sound waves are mechanical waves
e)the produced sound waves are electromagnetic waves
f) producing the sound does not change the wave type
g) producing sound changes the wave from mechanical wave to an electromagnetic wave
They travel in compressions and rarefactions and are propagated through air.
What are sound waves?Sound waves are longitudinal waves. They travel in compressions and rarefactions and are propagated through air.
The following are true about sound waves:
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pls help me with this chem question
Answer:
B
Explanation:
i just know
Answer:
B
Explanation:
Hydrocarbons are with hydrogen and carbon only, so therefore you can immediately eliminate C and D. Therefore, we are left with A and B. Unsaturated hydrocarbons have double bonds or more, so B would be our answer (Double bond between carbon 1 and 2)
PLEASE I REALLY NEED HELP!!! ITS NOT MULTIPLE CHOICE BTW :'(
A 76.0-gram piece of metal at 96.0 °C is placed in 120.0 g of water in a calorimeter at 24.5 °C. The final temperature in the calorimeter is 31.0 °C. Determine the specific heat of the metal. Show your work by listing various steps and explain how the law of conservation of energy applies to this situation.
Answer:
660J/kg.°C
Explanation:
Using the fact that
∆E of metal + ∆E of water = 0
∆E of the metal = Q = m*c*(T2-T1)
Where
Q = heat lost or gained = ?
m = mass of metal in kg = 0.076kg
c = specific heat of the metal = ?
T1 = 96°C
T2=31°C
∆E of the water=Q= m*c*(T2-T1)
Where
Q = 0.120*4180*6.5 = 3260J
Therefore
3,260J + Q of the metal =0
3,260J + 0.076*C*(31.0–96.0)=0
3,260J - 4.94c = 0
3,260 = 4.94c
3,260/4.94 = c
660J/kg.°C = specific heat of the metal
hope this helps:)
How does the kinetic energy of solids, liquids, and gases compare?
OA. Gases have no kinetic energy, solids have a little, and liquids have
the most.
O
B. Gases have the same kinetic energy as liquids, which is more than
solids.
O
C. Gases have the highest kinetic energy, followed by liquids, and
then solids.
O D. Gases have the lowest kinetic energy, followed by liquids, and then
solids.
Answer:
Gases have the highest kinetic energy, followed by liquids, and then solids.
Explanation:
Question:How does the kinetic energy of solids, liquid, and gases compare ?
Context:Higher kinetic energy causes particles to vibrate or move around faster. Solids have the lowest kinetic energy so vibrate very little.
Liquids have more kinetic energy so particles slide past each other.
Gases have the most kinetic energy so fly around in the air.
Answer:
C
Explanation:
you can relate this with their temprature, more kinetic energy means more movement of molecules. This creates heat which then melts or vaporizes substances. So, as K.E increases a substance will change from solid to liquid and eventually gas.
I need help please;-;
The order of increasing reactivity of the metals is: magnesium, sodium, and potassium.
How does the reactivity of metals increase?The reactivity of metals increases as one goes down the group and increases from right to left in th periodic table.
For the three elements, sodium potassium, and Magnesium, the least reactive is magnesium while the most reactive is potassium.
This is because of increase in reactivity based on the properties of the elements.
Therefore, the order of increasing reactivity of the metals is: magnesium, sodium, and potassium.
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Identify the solutions among the following mixtures
Soil, Sea water, Air, Coal, Soda water
Answer:
Out of the above mixtures, seawater, air, and soda water are solutions.
hope this helps :3
When an atom loses an electron, it becomes d. ionized. e. a plasma. a. dissociated. b. an isotope. c. sublimated.
Answer:
When an atom loses an electron it becomes ionized
In a neutralization reaction, an aqueous solution of an arrhenius acid reacts with an aqueous solution of an arrhenius base to produce:.
An aqueous solution of an arrhenius acid reacts with an aqueous solution of an arrhenius base to produce water and salt.
What is a Salt?This is a compound which is formed as a result of a neutralization reaction between acid and base.
Arrhenius acid reacts with an aqueous solution of an arrhenius base to produce water and salt due to increased concentration of H+ and OH- respectively.
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Common Tasks for Chemists.
Answer:
analysis organic and inorganic compounds,refine substances and chemicals products