The atomic symbol superscript 206 subscript 82 upper p b. represents lead-206 (pb-206), an isotope that has 82 protons and 124 neutrons. which atomic symbol could represent an isotope that undergoes radioactive decay to produce pb-206? superscript 238 subscript 92 upper u. superscript 222 subscript 87 upper p b superscript 178 subscript 72 upper h f. superscript 192 subscript 77 upper p b.

Answers

Answer 1

Answer: The atomic symbol represent an isotope that undergoes radioactive decay to produce Pb-206 can be, Polonium (Po).


Related Questions

Which animal feels no pain when they are exposed to acid?.

Answers

Researchers have found out why the African nak.ed mole-rat, one of the world's most unusual mammals, feels no pain when exposed to acid. The animals have an altered ion channel in their pain receptors that is inactivated by acid and makes the animals insensitive to this type of pain.

hope it helps...!!!

A nearly complete skeleton, ____ is a classic example of a Neanderthal with many defining Neanderthal characteristics. Group of answer choices Taung Child La Ferrassie 1 Piltdown Man KNM-ER 1805

Answers

Answer:  La Ferrassie 1

Explanation: La Ferrassie 1, often referred to as LF1, is a male Neanderthal skeleton estimated to be 70–50,000 years old. It was discovered at the La Ferrassie site in France by Louis Capitan and Denis Peyrony in 1909. The skull is the most complete Neanderthal skull ever found.

Name the compound
i: (CH3)2CHCOOH ​

Answers

Answer:

methylpropanoic is your answer

What's the name of this molecule?

Answers

Answer:

option d

Explanation:

Two atoms interact with each other and change as shown by the equation Complete the equation by filling in the missing parts.

Answers

Answer: the missing parts are ³₂He

Explanation:

The equation shown represents a nuclear reaction, meaning that, instead of the two hydrogen atoms form a molecule by a chemcial bond between the electrons of the atoms, the nuclei of the two interacting atoms change, leading to a new kind of atoms and particles.

That is mainly indicated by the appearace of the particle ¹₀ n, which is the symbol for a neutron.  The superscript 1 to the left of the symbol (letter n) means that the mass number of the neutron is 1, and the subscript 0 to the left of the symbol means that the atomic number of neutron is 0.

To determine the symbol, superscript and subscript needed to complete the missing parts of the equation, you need to do a mass number and atomic number balance.

Mass number balance:

The mass number is the superscript to the left of the symbol of the atom.

Each hydrgogen atom, in the reactant side, contributes a mass number 2, and the neutron on the product side contributes a mass number 1, so the balance is:

   2 + 2 = x + 1,

from which you determine that the unknown mass number is x = 4 - 1 = 3.

Atomic number balance

The atomic number is the subscript to the left of the element.

Each hdyrogen atom contributes an atomic number 1, and the neutron contributes 0 atomic number. So, the atomic number balance is:

   1 + 1 = x + 0 ⇒ x = 2.

Hence, the unknown atomic number is 2.

Conclusions:

The atomic number of the unknown element is 2, meaning that it has 2 protons.

In a periodic table you find that the element with atomic number 2 is helium, whose symbol is He.

The mass number of this atom of helium is 3, which implies that it has 3 - 2 = 1 neutron.

Using the corresponding notation, the complete equation is:

        ²₁ H + ²₁ H  → ³₂He + ¹₀ p

hope this helps

What is a large area of air with the same temperature?.

Answers

Sorry this is late but it would be the air mass

Hope this halpes :))

if the theoretical yield is 27.71 g and the actual yield is 20.02 g what is the yield?

Answers

20.02/27.71=0.7341
0.7341*100=73.41%

What is the most significant intermolecular force between water molecules?.

Answers

Answer:

cohesive force

Explanation:

A balloon is filled with 100.0 Lair at 1.300 atm pressure. what pressure is needed to change the volume to 25.00 L

Answers

Answer:

4 atmospheric pressure is needed to get a volume of 25 litres

How long are peeled potatoes good for in the fridge?.

Answers

Answer:

24 hours

Explanation:

You can safely leave peeled potatoes in the refrigerator for 24 hours. It's a great way to get a head start on your holiday meal preparation. As the Idaho Potato Commission notes, you can keep both whole, peeled potatoes or cut potatoes in the refrigerator.

A sample of methane occupies 3. 0 L at 200. C and 1. 4 ATM. What is the volume of the gas at STP?

Answers

Answer:

2.42 liters

Explanation:

P1V1/T1 = P2V2/T2       T 'S are in K

 STP is    273.15 K  and  1 atm

1.4(3) / 473.15   =   (1) ( V) /273.15

V = 2.42 liters

Ba(C204) + K(IO3) = Ba(IO3)2 + K2(C2O4)

Answers

Explanation:Reaction Type

Double Displacement (Metathesis)

Net Ionic Equation

Ba(C2O4) + 2K(IO3) = Ba(IO3)2 + K2(C2O4) might be an ionic equation. Calculate the net ionic equation for Ba(C2O4)(s) + 2K(IO3)(aq) = Ba(IO3)2(aq) + K2(C2O4)(aq).

Divers get "the bends" if they come up too fast because the gas in their blood expands, forming bubbles in their blood. If a diver has 5.0 mL of gas in his blood under a pressure of 250. atm then rises instantaneously to a depth where his blood has a pressure of 50.0 atm, what will the volume of gas in his blood be?

Answers

Solve without converting volume into dm³ as it will led into same answer

According to Boyles law

P1V1=P2V25(250)=50V21250=50V_2V_2=25mL

According to Boyle's law, the volume of gas in his blood  will be 25 ml at constant temperature.

What is Boyle's law?

Boyle's law is an experimental gas law which describes how the pressure of the gas decreases as the volume increases. It's statement can be stated as, the absolute pressure which is exerted by a given mass of an ideal gas is inversely proportional to its volume provided temperature and amount of gas remains unchanged.

Mathematically, it can be stated as,

P∝1/V or PV=K. The equation states that the product of of pressure and volume is constant for a given mass of gas and the equation holds true as long as temperature is maintained constant.

According to the equation the unknown pressure and volume of any one gas can be determined if two gases are to be considered.That is,

P₁V₁=P₂V₂

substitution gives V₂=250×5/50=25 ml.

Therefore, the volume of gas in his blood  will be 25 ml at constant temperature.

Learn more about Boyle's law,here:

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When discussing solutions, the amount of solute dissolved in the solvent is important to know
as it will affect the Colligative Properties of that solution. A solution prepared by dissolving
the maximum amount of solute in a given amount of solvent is BEST described as:
A) a supersaturated solution.
B) a saturated solution.
C) an unsaturated solution
D) a dilute solution.

Answers

Answer: B

Explanation:


10 grams CH10 + excess O2 → ? grams CO2 + H2O

Answers

Answer:

20  gm  CO2

Explanation:

CH10   mole weight = ~ 22 gm

  each 22 gm CH10 produces 44 gm CO2

        44 / 22 = x / 10 = 20 gm

The Asian long-homed beetle can infect a variety of tress such as maple trees and elm trees. These beetles eat the inside of an
infected tree and destroy the pathways that water and nutrients travel through to get from the roots to the rest of the tree. This results
in the tree becoming sick and eventually dying.
A cargo ship canying Asian long-homed beetles introduces the species into a region where the beetles were not previously present
This region has a diverse population of maple and elm trees. How will humans in the area likely be impacted?
OA. The housing industry will be negatively impacted due to an increase in lumber costs.
OB. The maple syrup industry will be negatively impacted due to a decrease in the maple population
OC. The lumber industry will be negatively impacted due to a decrease in available resources.
OD. all of

Answers

Answer: The answer to your question is OD

Hope this helps.

Answer:

The answer is D, all of these.

Explanation:

The person above was right ^^

Order the following pH values from most acidic to least acidic (most basic).
5.7
7.0
1.2
9.1

Answers

1.2, 5.7, 7.0, 9.1 in order most acidic to least

Answer: 1.2 to 5.7 to 7.0 to 9.1

Explanation: Highest acidic begins with 1

Which of the molecules below is propyne? two carbons are double bonded to each other; the pair is single bonded to h above left, below left, and below right, and to c h 3 above right. two carbons are double bonded to each other; the pair is single bonded to c h 3 above left and right, and to h below left and right. an h is single bonded to c, which is triple bonded to another c, which in turn is single bonded to a c with h above and below and yet another c to the right; the final c is bonded to h above, below, and right. an h is single bonded to c, which is triple bonded to another c, which in turn is single bonded to a c which is bonded to h above, below, and right.

Answers

Propyne is is composed of only hydrogen and carbon. It is a hydrocarbon molecule.

What is propyne

The molecule propyne is hydrocarbon. This means that it is composed of only hydrogen and carbon. The molecule contains three carbon atoms and four hydrogen atoms as shown.

The structral formula that corretly reperesents the molecule called propyne is shown in the image attaced to this answer.

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Answer:

C.

Explanation:

Which is not a property of bases Group of answer choices react with metals to produce hydrogen gas react with acids to form a salt and water bitter taste slippery feel

Answers

Answer:

react with metals to produce hydrogen gas

Explanation:

NaOH is a common base and is a strong base. Look what happens with it reacts with a metal:
OH- (aq) + Li(s) --> LiOH. It forms a salt not H2

(I removed spectator ions)

Which part of experimental design is most important to a scientist when replicating an experiment?.

Answers

Answer:

A split-plot design lets us replicate our treatments twice using only 24 runs in a single time period, hence it is the most efficient use of resource.

Explanation:

hope this helps

Given 2.3 moles of TiO2, how many grams of Na2O can i produce

Answers


The molar mass of NaOH (sodium hydroxide) is M1=39.997 g/mol M 1 = 39.997 g/mol , and the molar mass of (sodium oxide) Na2O is M2=61.978 g/mol N a 2 O is M 2 = 61.978 g/mol . Thus, the required mass of sodium oxide is equal to 123.9 grams.

Hypothesis for candy bar density lab

Need answer ASAP!!!!!

Answers

Goodbar candy bars are the most dense because they contain peanuts, and milk chocolate and dark chocolate candy bars are intermediate and of similar density because they only contain chocolate

The combustion of propane (C3H8) produces CO₂ and H₂O:
C₂H8 (g) +5O₂ (g) → CO₂ (g) + 4H₂O(g)
The reaction of 5.5 mol of O₂ will produce ____ mol of H2O

Answers

Answer:

4.4 moles of water

Explanation:

Propane is C3H8. Is the chemical equation, you wrote C2H8 which is wrong. Type everything properly and give a check before finally posting the question.

The chemical equation that is given, is not properly balanced. The BALANCED equation would be

C3H8 + 5O2 → 3CO2 + 4H2O

From this balanced chemical equation, we see that 5 moles of oxygen produce 4 moles of water.

5 moles of Oxygen → 4 moles of water

1mole of oxygen → [tex]\frac{4}{5}[/tex] moles of water

5.5 moles of oxygen → ([tex]\frac{4}{5}[/tex] × 5.5) moles of water = 4.4 moles of water

∴ The reaction of 5.5 mol of O2 will produce 4.4 mol of H2O. [Answer:]

Answer:

5.5

Explanation:

First, you will need to balance the equation ( the equation in your question is not balanced....typo?)

C2 H8    + 4 O2   ===> 2 CO2   + 4 H2O

Now, from the balanced equation:

O2 : H2O =  4/4 = 1/1

SO   5.5 MOLES  OF  O2  PRODUCES 5.5 MOLES  H20  

Question 3 (1 point)
Electrochemical processes involve redox reactions because electrons are transferred.
O True
O False
Question 4 (1 point)
The activity series of metals helps determine the result of chemical reactions.
O True
O False

Answers

An electrochemical process involves any process that has to do with the transfer of elecrons.

What is an elecrochemical process?

An electrochemical process involves any process that has to do with the transfer of elecrons. These process include redo reactionand electron transport chains.

It is a true statement that the actiivity series helps to detect the products in a reaction because a metal that is lower in the series is always displaced by a metal that is higher in the series.

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a gas has a volume of 2.00 at 323k and 3.00 ATM What would be the new volume if the temperature is changed to 273 K in the pressure is changed to 1ATM

Answers

Answer:

[tex]V_2 = 5.07L[/tex]

Explanation:

[tex]\frac{P_1 V_1}{T_1} = \frac{P_2 V_2}{T_2}\\V_2 = \frac{P_1 V_1 T_2}{T_1 P_2} = \frac{3.00atm \cdot 2.00L \cdot 273K}{323K \cdot 1.00atm} = 5.07L[/tex]

Apply combine gas law

[tex]\\ \rm\Rrightarrow \dfrac{P_1V_1}{T_1}=\dfrac{P_2V_2}{T_2}[/tex]

[tex]\\ \rm\Rrightarrow \dfrac{3(2)}{323}=\dfrav{V_2}{273}[/tex]

[tex]\\ \rm\Rrightarrow 6(273)=323V_2[/tex]

[tex]\\ \rm\Rrightarrow 1638=323V_2[/tex]

[tex]\\ \rm\Rrightarrow V_2=5.07L[/tex]

An aqueous solution has a hydroxide ion concentration of 1.20 × 10–2 M at 25°C. Calculate the pOH of the solution.

Answers

Given↷

[OH-] = 1.20 × 10^–2 MTemperature = 25°To find↷

pOH of the solutionAnswer ↷

pOH = 1.92Solution ↷

[OH-] = 1.20 × 10^–2 MpOH = - log [OH^1-]pOH = - log [1.20 × 10^–2]pOH = 1.92

Let's see

25°C is normal room temperature denotion

pOH

[tex]\\ \rm\Rrightarrow -log[OH^-][/tex]

[tex]\\ \rm\Rrightarrow -log[1.2\times 10^{-2}][/tex]

log(ab)=loga+logb

[tex]\\ \rm\Rrightarrow -log1.2-log10^{-2}[/tex]

[tex]\\ \rm\Rrightarrow -0.0791812460476+2[/tex]

[tex]\\ \rm\Rrightarrow 2.0791812460476[/tex]

Approximately 2

In a chemical reaction, when particle size is reduced, the rate of reaction increases because of increased surface area of the
reactants.
Why would increased surface area increase reaction rate?
-0)
A)
It increases the number of collisions among particles.
B)
It decreases the activation energy.
It increases the concentration.
D)
It decreases the temperature.

Answers

Answer:

option A

for more information, refer to https://brainly.com/question/13441946

An increased surface area would increase the reaction rate because it increases the number of collisions among particles.

What is rate of a reaction?

Rate of a reaction is the speed or length of time it takes for a reaction to take place.

The rate of a chemical reaction can be affected by the following:

Increase in surface area of reactantsIncrease in temperature

According to this question, when particle size is reduced, the rate of reaction increases because of increased surface area of the reactants.

This is because the increase in surface area increases the number of collisions among particle.

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A solid substance turns directly into a gas. Which term describes this change?
deposition
evaporation
melting
sublimation

Answers

Answer:

sublimation

Explanation:

Deposition is like dew forming

evaporation is going from liquid to gas

melting is going form solid to liquid ( like ice does when it warms)

sublimation is going from solid directly to gas ( like moth balls)

An increase in blood carbon dioxide content causes hemoglobin to ________. release all bound carbon dioxide molecules bind more oxygen molecules bind more H release more oxygen molecules denature

Answers

An increase in blood carbon dioxide content causes hemoglobin to release more oxygen molecules. Details about hemoglobin can be found below.

What is hemoglobin?

Hemoglobin is the iron-containing substance in red blood cells that transports oxygen from the lungs to the rest of the body.

Hemoglobin consists of a protein (globulin) and heme (a porphyrin ring with an atom of iron at its centre). This justifies its oxygen affinity.

However, excess carbon dioxide in the blood causes blood pH to decrease, resulting in hemoglobin proteins releasing more oxygen molecules.

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If the mass of the electron were magically doubled, would the ionization energy of hydrogen increase, decrease, or stay the same?.

Answers

Answer:

The ionization energy would increase

Explanation:

because the increased mass would mean the electron would orbit closer to the nucleus and would require more energy

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Stan and kenya are investigating the properties of gases in the lab. Stan has a balloon filled with helium, and kenya has a balloon filled with hydrogen. Under which condition do the gases in the two balloons have the same kinetic energy? Evaluate the expression for the given values.(a) The expression 5p 7d evaluated for p = 8 and d = 1/7(b) The expression 5p 7d evaluated for p = 3 and d = 6 (a) The expression 5p7d evaluated for p=8 and d= 1/7 is______ .Part 2 Of Question b) The expression 5p 7d evaluated for p = 3 and d = 6 is ______ When the selling division in an internal transfer can sell every product at its market price, then the lowest acceptable transfer price as far as the selling division is concerned is: g Solve the system of equations: 4x+1=5(x3y)63(x+6y)+4=9y+19 Killer whalesSea lionsSalmonBaleen whalesHerringZooplanktonPhytoplanktonWhich of the following are missing from the food web shown above?F ProducersG DecomposersH OmnivoresPredators Is 10, 20, 40, 80... an arithmetic sequence? The function f(t)=6500(1.85)^{365t}f(t)=6500(1.85) 365t represents the change in a quantity over t years. What does the constant 1.85 reveal about the rate of change of the quantity? Can somebody help me?(2, 9) is the solution of the system of equations.y = x + 7y = 2x + 5true or false What is the simplest form of (5x+2)(5x-2) A stock __________ is the distribution of additional shares to stockholders according to their percent ownership. When this occurs, the corporation "calls in" its outstanding shares and issues more than one new share in exchange for each old share. Find the error in the solution. Identify the solution, and then solve the problem correctly.In KLM, mUse the Law of Cosines to find the length of LM to the nearest tenth.LM = 23 - 20 - 2 (23) (20) cos 119LM = 529 - 400 - 920 cos 119LM575.02LM24.0 Two masses m1 500 g and m2 1.5 kg on a frictionless, horizontal surface are connected by a light string. A force F with magnitude 5 N is exerted on m2 to the right. Assume the tension hasthe same magnitude at every point in the string, and neglect air resistance.(a) Since the masses are connected by a string, they are constrained to move together. Express this constraint as an equation relating the accelerations of the two masses.(b) Draw free-body diagrams for the two masses and write down the horizontal component of the net force on each mass.(c) Use Newtons 2nd law and the constraint from part (a) to find the acceleration of both masses and the magnitude T of the tension in the string. Please answer by tonight!Match the term to the definition.Question 1 options:As the amount of salt in water increases, the density of the water _________.This is what moves forward and through a wave.The distance from the crest of one wave to the crest of another.The amount of dissolved salt in a liquid.Water circulation created by prevailing wind systems. The Gulf Stream is an example.The rising of ocean water bringing nutrients up from the deep.Water circulation created by differences in density.The cyclical process of the changing state and movement of water around the Earth through evaporation, condensation, and precipitation.The length of open sea over which wind can blow steadily to create waves.The type of energy possessed by moving water.1. The water cycle2. vapor transport3. salinity4. increases5. decreases6. surface currents7. Coriolis Effect8. deepwater currents9. trough10. wave period11. wavelength12. water molecules13. energy14. crest15. fetch16. electrical17. kinetic18. downwelling19. upwelling 3. Give an example of a mechanical wave that changes frequency. Increasing levels of greenhouse gases have caused a:. Which best explains the relationship between evaporation and temperature?A liquid evaporates slower at lower temperatures because the molecules are more spread apart and are not pushed as easily from the liquids surface.A liquid evaporates faster at lower temperatures because the attractions are decreased and more particles can escape the surface of the liquid.A liquid evaporates slower at higher temperatures because the vapor pressure of the liquid is higher, so fewer molecules can escape the surface.A liquid evaporates faster at higher temperatures because more particles have a higher speed and can overcome attractions in the liquid. What is the name of bird W? Which sentence uses theunderlined vocabulary wordcorrectly?A. I could infer by the tone of his voice thatthe situation was urgent.B. I put on sunblock to block out the inferred rays.C. I choose to infer the installation of carpetin my room. helppppppppppppppppppppppppppppppp 3'AGGTCAGGT5' which is the correct complementary DNA for this segment?