Answer:
In order to draw the 3-D structure of an organic compound, we can use wedge-dash representation.
Write the symbol for the ion depicted here
Answer:
can you repost with picture? I can help.
Which of the following statements is TRUE about graphic scores?
A. Graphic scores can only be written on manuscript paper
B. The performer can interpret the score however he/she wishes
C. Graphic scores cannot show dynamic changes
D. The composer is not allowed to make suggestions regarding the performance
The performer can interpret the score however he/she wishes in a graphic score. The correct option is B.
What is graphic score?A graphic score is simply another method of notating music or sounds on a page, in addition to the more traditional 5-line stave.
They created graphic scores or graphic notation, a new way of visualizing music. Graphic scores are frequently distinct from traditional musical scores.
Graphic scores, as opposed to lines and dots on a musical stave, can use a variety of images and symbols to instruct the performer on what to play.
In a graphic score, the performer can interpret the score however he or she sees fit.
Thus, the correct option is B.
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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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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?
how is the stellar spectrum of Betelgeuse different than the spectra of the other stars in the constellation Orion?
Due to the temperature of the stars the stellar spectrum of Betelgeuse different than the spectra of the other stars in the constellation Orion.
What are constellation Orion?Constellation Orion is defined as a prominent constellation of the orion which has been located on the equator of celestial and it can be visible throughout the whole world. It is the most identified constellations in the sky at night.
Constellation Orion is the most identified constellations in the sky at night. Constellation Orion is defined as a prominent constellation of the orion which has been located on the equator of celestial and it can be visible throughout the whole world.
Therefore, Due to the temperature of the stars the stellar spectrum of Betelgeuse different than the spectra of the other stars in the constellation Orion.
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Guide Questions. 1.) What is the color of the Freshly cut apple/eggplant/potato in glass A and glass B? 2.) What is the color of the apple/ eggplant/potato After 48 hours in glass A and glass B? 3) What is the effect of the exposing the slice of the material in oxygen in glass A and glass B after 48 hours? 4) What is the effect of puting an Vitamin C (as antioxidant that prevents Further oxidantion of apple /eggplant in Glass B?
Freshly-cut eggplant, while uncovered to the air, quickly oxidizes and turns black, kind of the manner an apple goes brown after it is reduced and uncovered to air. the Apple inexperienced eggplant's outer skin is smooth, shiny, and maybe yellow or pale inexperienced.
Leaving slices of apples exposed to the air results in the apple turning an acquainted brown shade. This process, referred to as enzymatic browning, is due to the reaction of positive enzymes with phenolic compounds, both gift inside the apple, that occurs when they may be uncovered to oxygen inside the air.
The eggplant turns brown whilst uncovered to air because a reaction is occurring whilst a cut piece of fruit is exposed to oxygen. this is called enzymatic browning. The call enzymatic browning comes from the truth that an enzyme positioned inside the fruit reacts with oxygen from the air to turn the fruit brown.
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How many moles of ammonia would be required to react exactly with 0.764 moles of copper(II) oxide in the following chemical reaction?
2 NH₃(g) + 3 CuO(s) → 3 Cu(s) + N₂(g) + 3 H₂O(g)
0.313 moles NH3 moles of ammonia would be required to react exactly with 0.764 moles of copper(II) oxide in the following chemical reaction.
What is a balanced equation?
A balanced equation is one for a chemical reaction where the overall charge and the number of atoms for each component are the same for both reactants and the products. In those other words, the weight and charge of both ends of the reaction are equal.
2 NH₃(g) + 3 CuO(s) → 3 Cu(s) + N₂(g) + 3 H₂O(g) is a balanced equation.
The coefficients of the compounds give the mole ratios,
So 2 moles of ammonia (NH3) will react with 3 moles of copper(II) oxide, (CuO).
We use simple proportion or use dimensional analysis
By proportion: 2 mol NH3/3 mol CuO = x mol NH3/0.470 mol CuO and x = 0.313 moles NH3
By dimensional analysis: 0.470 mol CuO x 2 mol NH3/3 mol CuO = 0.313 moles NH3
Therefore, 0.313 moles of NH3 of ammonia would be required to react exactly with 0.764 moles of copper(II) oxide in the following chemical reaction.
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Be sure to answer all parts.
Which monatomic ions would you expect rubidium (Z = 37) and phosphorus (Z = 15) to form?
rubidium (Z = 37)
phosphorus (Z = 15)
Answer:
Explanation:
z=36
f=88
c=66
When an electron moved from ground state to the excited state it
When an electron moved from the ground state to the excited state it gained energy and passed to a high level of energy.
What is an electron shell?An electron shell is a layer of the electrons that contains a given amount of energy and may pass to higher levels by excitation which also read to change the orbital from the ground state to the excited state.
In conclusion, when an electron moved from the ground state to the excited state it gained energy and passed to a high level of energy.
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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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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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what is the total length of two pieces of tubing which measure 4.5 cm and 3.222 cm? express the answer to the correct number of significant figures
The total length of the two pieces of tubing with correct number of significant figures is 7.7 cm.
There are certain rules regarding significant figures.
The rule about the addition of two quantities is that when two quantities are added then the number of digits after decimal in the sum of the two quantities should be equal to the least number of decimal places present in the given quantities.
In the above case, the two numbers are 4.5 cm and 3.222 cm and they contain 1 and 3 digits after decimal. So, the final answer should have only 1 decimal place.
Adding 4.5 cm + 3.222 cm = 7.722 cm
The answer should contain only 1 digit after decimal so the answer is rounded off to 7.7 cm.
Thus, the total length of the two pieces of tubing with correct number of significant figures is 7.7 cm.
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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
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:
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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Cite as organelas citoplasmáticas de a função de duas.
R:?
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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Please answer question 2, 100 points!
Answer:
the answer is attached
Explanation:
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
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 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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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
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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A(n) ___ is equal to the mass of a proton.
electron
nucleus
neutron
electron cloud
Answer:
neutron
Explanation:
A proton is one of three main particles that make up the atom. Protons are found in the nucleus of the atom. This is a tiny, dense region at the center of the atom. Protons have a positive electrical charge of one (+1) and a mass of 1 atomic mass unit (amu), which is about 1.67×10−27 kilograms.
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
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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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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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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