Nitorgen-13 undergoing positron emission and form of carbon-13 and a positron particle .
The nuclear equation is given as ,
[tex]^{13} _{7}N[/tex] → [tex]^{0} _{+1} P[/tex] + [tex]^{13}_{6} C[/tex]
where P represents proton , C represent carbon , and N represent nitrogen .
Nuclear equation is the symbolic representation of reaction occur in with nucleus . Positron emission , also known as positive beta decay (+-decay), occurs when a proton in the parent nucleus decays into a neutron that stays in the daughter nucleus. The daughter nucleus then emits a neutrino and a positron , a positive particle with mass similar to an ordinary electron but an opposite charge .
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There are numerous starting points that a composer could use when writing a piece of music.
A. True
B. False, dynamics and tempo are the only starting points
C. False, composers never us a starting point
D. False, structure is the only starting point
There may be numerous starting points that a composer could use when writing a piece of music. A. True
The composer may additionally begin at a unique factor depending on the ideas they've at that moment in time. A music composer is someone who sings or performs a musical tool. In other phrases, it may be said that a singer or a guitarist is referred to as a musician for that count number. A composer however is a person who sets a track to a song.
Musical composition can discuss an original piece or work of the track, both vocal or instrumental, the structure of a musical piece, or the procedure of making or writing a new piece of music. people who create new compositions are referred to as composers.
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Please answer question 2, 100 points!
Answer:
the answer is attached
Explanation:
Which of the following characteristics best describe the properties of liquids? Select all that apply.
A. Not easily compressed
B. Easily compressed into a smaller volume
C. Takes the shape of its container
D. Has indefinite shape and fixed volume
E. Has definite shape and volume
F. Particles are packed tightly together, often in an orderly arrangement
G. Expands to fill any volume
The characteristics among the choices given which best describe the properties of liquids are
Easily compressed into a smaller volumeTakes the shape of its containerHas indefinite shape and fixed volume.The correct answer choices are options B, C and D.
Of course, liquid do not have a fixed shape but they a fixed volume. The particles of liquids are not tightly packed together as in solids but have some spaces between their particles.
What are characteristics of liquids?Liquids are characteristized by the following properties such as:
Fixed volumeindefinite shapeThey are easily compressedSo therefore, the characteristics among the choices given which best describe the properties of liquids are
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If there are 6.10 moles of H, how many moles of each of the compounds are present?
If there are 6.10 moles of H, number moles of compounds H₂SO₄ is 3.05 moles, C₂H₄O₂ is 1.52 moles, and NaOH is 6.1 moles.
A mole is the unit to measure small entities as atoms, molecules, etc. It is equivalent to Avogadro's number which is equal to 6.022 x 10²³.
To calculate moles of each compound -
H₂SO₄ -
6.10 mol H x 1 mol H₂SO₄ = 3.05 mol
2 mol H
Hence, there are 3.05 moles of H₂SO₄.
C₂H₄O₂ -
6.10 mol H x 1 mol C₂H₄O₂ = 1.52 mol
4 mol H
Hence, there are 1.52 moles of C₂H₄O₂
NaOH-
6.10 mol H x 1 mol of NaOH = 6.1 mol
1 mol of H
Hence, there are 6.1 moles of NaOH.
Complete question is -
If there are 6.10 moles of H, how many moles of each of the compounds are present?
a) H₂SO₄
b) C₂H₄O₂
c) NaOH
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A car's engine provides a forward force of 2000 N while the force of air resistance is 800 N in the opposite direction. With what
force will the car move, and in which direction? (1 point)
2800 N forward
O 16000 N forward
O 1200 N backward
O 1200 N forward
The car will move with a force of 1200 N forward
Data obtained from the questionThe following data were obtained from the question:
Forward force = 2000 NForce of air resistance = 800 NNet force =?How to determine the net force and the directionWe can obtain the force (i.e net force) the car will use to move as illustrated below:
Net force = forward force - force of air resistance
Net force = 2000 - 800
Net force = 1200 N forward
Thus, the car will move with a force of 1200 N forward
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Hello!
So...
The force of the car will be 12000 N forward.
Hope this helps! Also, if you need more help regarding this assignment, I made a really easy and helpful study guide for the rest of these, and even goes over a summary of the guidelines to properly answer question 11-15. So, if you need it, feel free to check it out. Thanks and good luck!
Quizlet - "Newton's Laws UT"
h t t p s : / / q u i z l e t . c o m / _ c 7 h q 1 o ? x = 1 q q t & i = 3 8 n a a s
Which of the following is the
correct way to express the
number below in standard form?
3.4 x 10^5
A. 0.000034
B. 0.00034
C. 3400000
D. 340000
Answer:
D
Explanation:
Write the symbol for the ion depicted here
Answer:
can you repost with picture? I can help.
If you have a stock solution of 0.369 g/L NaCl, how would you make 200 mL of a 0.1 g/L NaCl solution?
Using the dilution formula, the volume of stock required is 54 mL and is made up to 200 mL to give 0.1 g/L NaCl solution.
What is the procedure for preparing dilute solutions from stock solutions?To prepare dilute solutions from stock solutions, the dilution formula is used to calculate the volume of stock solution required in order to prepare the dilute solution.
The dilution formula is given below:
M₁V₁ = M₂V₂
where;
M₁ is the concentration of the stock solutionV₁ is the volume of stock solution requiredM₂ is the concentration of the dilute solutionV₂ is the volume of the dilute solution requiredFrom the data provided:
M₁ = 0.369 g/L
V₁ = ?
M₂ = 0.1 g/L
V₂ = 200 mL
V₁ = M₂V₂/M₁
V₁= 200 * 0.1/0.369
V₁ = 54 mL
Therefore, 54 mL f the stock solution is measured into a volumetric flask and diluted with water to volume of 200 mL.
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Cite as organelas citoplasmáticas de a função de duas.
R:?
Analyze two different crime scenes, such as a homicide and a burglary, and determine two forensic personnel that are likely to be involved in solving each crime. Describe at least two roles and responsibilities for the forensic personnel in each case.
Homicide is referred to as manslaughter and involves a human killing another while burglary is referred to as the breaking into or gaining access to a building without permission.
Who are the forensic personnel?They include the crime scene photographers and sample collector who are involved in the taking of photographs and collecting of body parts such as hair which can help reveal the identity of the suspect through the use of DNA extraction techniques.
The forensic technicians are also present at the crime scene and they help to make sketches of the crime scene and also assist in the gathering of the evidences which are left behind.
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What mass in grams of nitrogen would be present in a 10.0 g sample of N2O5?
1 mole of any substance contains 6.022×[tex]10^{23}[/tex] particles
Therefore,
0.18516 mol of nitrogen contains = (0.18516 mol) × (6.022 x [tex]10^{23}[/tex]) = 1.115×[tex]10^{23}[/tex] nitrogen atoms = 1.1×[tex]10^{23}[/tex] atoms of N.
Hence, in 10.0g of [tex]N_{2} O_{5}[/tex], 1.1×[tex]10^{23}[/tex] atoms of nitrogen are present.
The mass of one atom of nitrogen is 2.32×[tex]10^{-23}[/tex] grams.
Therefore, mass of 1.1×[tex]10^{-23}[/tex] atoms of nitrogen will be 1.1×[tex]10^{-23}[/tex] x 2.32×[tex]10^{-23}[/tex] grams = 2.55 x [tex]10^{-46}[/tex] grams.
Dinitrogen pentoxide, sometimes referred to as nitrogen pentoxide or nitric anhydride, is the chemical compound having the formula N2O5. It belongs to the family of chemicals known as binary nitrogen oxides, which simply consists of nitrogen and oxygen.It is practical to express the quantity of a substance using the mole idea. The numerical magnitude and the units in which the magnitude is expressed are the two components that make up any measurement. The magnitude is "2" and the unit is "kilogram," for instance, when a ball's mass is measured to be 2 kilograms.Hence the correct answer is that 10.0g of [tex]N_{2} O_{5}[/tex] contains 2.55 x [tex]10^{-46}[/tex] grams of Nitrogen.
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what are the 8 physical properties of matter
Answer:
color ,hardness,maleabillit,sulubility,electrical,
Name the following aromatic hydrocarbon: A. chlorobenzene C. chlorohexane -Cl B. chlorohexyne D. benzene chloride
Answer:
A
Explanation:
benzene is an automatic chemical, so a answer A chlorobenzene, had to be the the aromatic hydrocarbon
Which of the Newman structures below represents this conformation of 3-chloro-2-methylpentane, as viewed along the C2-C3 bond?
The formula for 3-chloro-2-methylpentane is C6H13Cl if that helps). I have a picture of the four possible answers attached below.
The Newman structures above which represents the conformation of 3-chloro-2-methylpentane, as viewed along the C2-C3 bond is the one where the branch substituent chloro is found at carbon 3 and the branch substituent methyl is found at carbon 2.
The correct answer choice in the picture above is option b.
In this structure, there are two different branch substituents; which are ethyl and chloro. The parent substituent is known has pentane, having 5 carbon atoms the the Newman structures above
What are organic compounds?These are compounds containing carbon and hydrogen. The study of organic compounds in chemistry is called organic chemistry.
So therefore, the Newman structures above which represents the conformation of 3-chloro-2-methylpentane, as viewed along the C2-C3 bond is the one where the branch substituent chloro is found at carbon 3 and the branch substituent methyl is found at carbon 2.
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If the mass of a crucible is 12.1 g and the mass of a crucible containing CuSO4 is 23.1 g, then what is the mass of the CuSO4?
If the mass of a crucible is 12.1 g and the mass of a crucible containing CuSO4 is 23.1 g, then the mass of the CuSO4 is 11 gram.
A basic characteristic of all matter, inertia can be quantified as mass. It essentially refers to a body of matter's resistance to changing its speed or location in response to the application of a force. we know the mass of crucible and mass of crucible containing copper sulphate so to find out the mass of copper sulphate we will subtract mass of crucible from mass of crucible containing copper sulphate.Given,
mass of crucible is 12g
mass of crucible with copper sulphate is 23.1g
so the mass of CuSO4 = mass of crucible with copper sulphate - mass of crucible
= 23.1 g - 12.1g = 11 g
Therefore mass of CuSO4 is 11g
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How many significant figures are there in 10082 kilometers?
The total number of Significant digits are 5.
We have a measurement of distance - 10082 Kilometers.
We have to determine the total number of significant digits in this measurement.
What are significant digits ?Significant figures are the digits of a number that are meaningful in terms of accuracy or precision.
According to the question -
Distance = 10082 Km
In this measurement, the total number of significant digits are 5 since all the 5 digits are important for a accurate measurements.
Hence, the total number of Significant digits are 5.
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Fred Frantic, a busy student, needed to get back to his job, and was in a hurry. Tell what effect each of the following procedural errors would have on both the percent copper and the percent chlorine that he would determine. In other words, would the percent of each element increase or decrease? Consider and briefly explain each error individually.
b. Fred removed the aluminum wire from the solution while it was still blue. He went ahead and de canted the solution, and isolated the solid remaining.
It would probably be around 20 because of the aluminy
If the amount of H2 is doubled, how many moles of H2O would have formed?
10H2+7O2=10H2O+2O2
If the amount of hydrogen gas (H₂) is doubled, the number of moles of water (H₂O) that will be formed is 20.
What is the principle of combining ratio of atoms?
This principle states that atoms cannot be created or destroyed.
However, atoms of different elements may combine with each other in a fixed, simple, whole number ratios to form compound atoms.
Atoms of same element can combine in more than one ratio to form two or more compounds.
The given chemical equation;
10H₂ + 7O₂ → 10H₂O + 2O₂
In the equation above, we can infer the following;
10 moles of hydrogen gas (H₂) gave 10 moles of water (H₂O).
10 H₂ ----------------------> 10 H₂O
when the hydrogen gas (H₂) is doubled,
20 H₂ ----------------------> ? H₂O
= (20 x 10)/10
= 20 moles of water (H₂O)
Thus, if the amount of hydrogen gas (H₂) is doubled, the number of moles of water (H₂O) that will be formed is 20.
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b) if each mole of gas occupies 51 mL under the conditions of the explosion, how many liters of gas are produced?
Answer:
5.59L
Explanation:
If each mole of gas is 55 L, then this relationship can be used as a conversion factor to find the volume of gas produced
9. Write the name of each of the following ionic
substances, using -ous or -ic endings to indicate
the charge of the cation.
a. CoCl2
b. CrBr3
c. PbO
d. SnO₂
e. Fe₂O3
f. FeCl3
The name of [tex]CoCl_{2}[/tex] is Cobaltous Chloride , [tex]CrBr_{3}[/tex] is Chromic Bromide , PbO is Plumbous oxide , [tex]SnO_{2}[/tex] is Stannous oxide , [tex]Fe_{2} O_{3}[/tex] is Ferric oxide and [tex]FeCl_{3}[/tex] is Ferric Chloride.
Ionic compounds are made up of ions. The positively charged species are referred to as cations and negatively charged species are referred to as anions. Ionic compounds are named based on the nomenclature of ionic compounds.
For [tex]CoCl_{2}[/tex] , the cation is [tex]Co^{2+}[/tex] which is called cobaltous ion. The anion is [tex]Cl^{-}[/tex] which is the Chloride ion. So, the name of the compound is Cobaltous Chloride.
For [tex]CrBr_{3}[/tex] , the cation is [tex]Cr^{3+}[/tex] which is called chromic ion. The anion is [tex]Br^{-}[/tex]which is the bromide ion. So, the name of the compound is Chromic Bromide.
For PbO , the cation is [tex]Pb^{2+}[/tex] which is called Plumbous ion. The anion is [tex]O^{2-}[/tex] which is the oxide ion. So, the name of the compound is Plumbous oxide(Lead Oxide).
For [tex]SnO_{2}[/tex] , the cation is [tex]Sn^{2+}[/tex] which is called stannous. The anion is [tex]O^{2-}[/tex]which is the oxide ion. So, the name of the compound is Stannous oxide.
For [tex]Fe_{2} O_{3}[/tex] , the cation is [tex]Fe^{3+}[/tex] which is called Ferric ion. The anion is [tex]O^{2-}[/tex] which is the oxide ion. So, the name of the compound is Ferric oxide.
For [tex]FeCl_{3}[/tex] , the cation is [tex]Fe^{3+}[/tex] which is called Ferric ion. The anion is [tex]Cl^{-}[/tex] which is the Chloride ion. So, the name of the compound is Ferric Chloride.
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8. How are organs similar to cities?
b. On the periodic table, what three pieces of information are given about every element?
i._______
• Where is it written?
• What information does it give?
ii.______
• Where is it written?
• What information does it give?
iii._____
• Where is it written?
• What information does it give?
someone please help and fast !!
On the periodic table, three pieces of information are given about every element are the elemental symbol, the atomic number and the atomic weight
In the periodic table the chemical elements are arranged from left to right and top to bottom in order of increasing atomic number the horizontal rows on the periodic table are called periods and vertical column are called as group and they show atomic elements that have the same number of valence electrons the three main information are given about every element are the elemental symbol, the atomic number and the atomic weight atomic number means the number of protons in an atom's nucleus is referred to as the atomic number of that element, atomic symbol means the atomic symbol (or element symbol) is an abbreviation chosen to represent an element, atomic mass or atomic weight means the standard atomic weight of an element is the average mass of the element written in atomic mass units.
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which of the following is not a unit that could be used for density
A. g/cm3
B.g/mL
C.mL/g
D.kg/m3
Answer:
Explanation:
c
Q2.22
Homework Unanswered
What is the chemical symbol of the halogen located in the second period that naturally occurs as a diatomic gas?
Type your answer and submit
X, X Ω·
viia I
of light?
The chemical symbol of the halogen located in the second period that naturally occurs as a diatomic gas is F
A chemical symbol is a one or two letter designation of an element and some examples of chemical symbols of halogen are like Florine is F chlorine is Cl the first letter of a symbol is always capitalized and if the symbol contains two letters the second letter is lower case
The halogen elements are the six elements in Group 17 and second period of the periodic table group 17 occupies the second column from the right in the periodic table and contains fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and are all halogens and in that main halogen is fluorine and chemical symbol is F
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You notice the water level in your fish bowl gets lower over time. What change in state is happening? How do you know?
Answer:
Evaporation
Explanation:
Overtime the water is slowly changing its physical state from liquid form to gaseous form in the form of evaporation.
Examine the diagram below.
Which of the following statements is true of the above graph?
A.
An object is moving at a variable speed away from the origin.
B.
An object is standing still at a distance of 6 meters from the origin.
C.
An object is standing still on the origin.
D.
An object is moving at a constant speed of 6 m/s away from the origin.
Please help- I'm already failing this subject
Answer:
B
Explanation:
the distance doesnt change over time
1. What stage do stars - and their planets in solar systems - form from?
and larger?
Clumps of gas and dust shrink to much smaller sizes, which leads to the formation of stars and planets.
Each of these contracting clusters was too cool to emit visible light during the early stages of star formation.The clumps shrank steadily, packing their substance into ever-tinier volumes due to the attraction of each part to every other part.The temperature at the centre of the clumps increased as the clumps continued to contract due to the resulting increase in density.Atomic nuclei eventually started to fuse as this centre temperature rose above 10 million degrees.when nuclear fusion begins, marks the creation of a new star.According to scientists, planets start to form when a nebula or dense cloud of gas and dust revolves around a young star. Gravity forces the nebula's material fragments to clump together over time. These aggregates develop and gather over time. These clusters eventually develop into planets.This is how stars and planets formed.
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5 μl (microliter) = _____ l (liter)
Potassium chlorate decomposes when heated to produce potassium chloride and oxygen gas: 2 KClO3 (s) à 2 KCl (s) + 3 O2 (g) (a) If a test tube holding 87 g KClO3 is heated and the reaction goes to completion, calculate the volume of O2 gas that will be obtained if it is collected at a pressure of 1 atm and temperature of 27 °C. (Assume ideal gas behavior.)
Taking into account the reaction stoichiometry and the ideal gas law, the volume of O₂ obtained is 26.199 L.
Reaction stoichiometryIn first place, the balanced reaction is:
2 KClO₃ → 2 KCl + 3 O₂
By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:
KClO₃: 2 molesKCl: 2 molesO₂: 3 molesThe molar mass of the compounds is:
KClO₃: 122.55 g/moleKCl: 74.55 g/moleO₂: 32 g/moleBy reaction stoichiometry, the following mass quantities of each compound participate in the reaction:
KClO₃: 2 moles ×122.55 g/mole= 245.1 gramsKCl: 2 moles ×74.55 g/mole= 149.1 gramsO₂: 3 moles ×32 g/mole= 96 gramsIdeal gas lawIdeal gases are a simplification of real gases that is done to study them more easily. It is considered to be formed by point particles, do not interact with each other and move randomly. It is also considered that the molecules of an ideal gas, in themselves, do not occupy any volume.
The pressure, P, the temperature, T, and the volume, V, of an ideal gas, are related by a simple formula called the ideal gas law:
P×V = n×R×T
where:
P is the gas pressure.V is the volume that occupies.T is its temperature.R is the ideal gas constant. The universal constant of ideal gases R has the same value for all gaseous substances.n is the number of moles of the gas.Mass of O₂ formedThe following rule of three can be applied: if by reaction stoichiometry 245.1 grams of KClO₃ form 3 moles of O₂, 87 grams of KClO₃ form how many moles of O₂?
moles of O₂= (87 grams of KClO₃× 3 moles of O₂)÷ 245.1 grams of KClO₃
moles of O₂= 1.065 moles
Volume of O₂ obtainedAssuming ideal gas behavior and knowing:
P= 1 atmn= 1.065 molesR= 0.082 [tex]\frac{atmL}{molK}[/tex]T= 27 C= 300 Kthe volume of O₂ obtained is calculated by the ideal gas law:
1 atm×V = 1.065 moles× 0.082 [tex]\frac{atmL}{molK}[/tex]× 300 K
Solving:
V= (1.065 moles× 0.082 [tex]\frac{atmL}{molK}[/tex]× 300 K)÷ 1 atm
V= 26.199 L
Finally, the volume of O₂ obtained is 26.199 L.
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(a)
As you respond to Part A, Part B, and Part C, follow the directions below.
Address all of the instructions in each prompt.
Use evidence from the information provided and your own knowledge of science to support your responses.
Part A
Describe one way scientists near Lake Tahoe can detect if the lake has been impacted by zebra mussels.
Since then, it has spread to other rivers, colonized them, clogged the water intake pipes, and competed with local species for food. Zebra mussels are the method for removing a lot of plankton from the water column.
The Caspian Sea in Asia is where zebra mussels, or Driessen polymorpha, are found naturally. They arrived in the Great Lakes region in the late 1980s via ballast water from a transatlantic ship. The Great Lakes, Mississippi, Tennessee, Hudson, and Ohio river basins were all overrun by these mussels within ten years. The lake's brilliant blue hue is a result of Tahoe's clean air and water. There is more to this phenomenon than just the fact that Lake Tahoe's surface reflects the sky, which contributes to its blue color.
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