The energy graph for a collision method includes the system under consideration, the relative kinetic energy before and after the collision, and how the change in energy is represented.
In this collision method, let's consider a system consisting of two objects: Object A and Object B. The relative kinetic energy of the system before the collision is represented by a certain value on the y-axis of the graph. This value will depend on the masses and velocities of the objects involved in the collision.
During the collision, energy may be transferred between the objects. If the collision is elastic, the total kinetic energy of the system will remain constant. In this case, the graph would show a horizontal line at the same level as the initial relative kinetic energy.
However, if the collision is inelastic, some kinetic energy will be lost, and the graph would show a decrease in the relative kinetic energy. The extent of the decrease will depend on factors such as the nature of the collision and the objects involved.
To represent the change in energy, we can plot the relative kinetic energy after the collision on the y-axis of the graph. The difference between the initial and final values of the relative kinetic energy will indicate the change in energy resulting from the collision.
By analyzing the energy graph, we can gain insights into the nature of the collision and the energy transformations that occur during the process.
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Cat or Dog?
Zebra or Tiger?
China or NYC?
Sing or Dance?
Exercise or Yoga?
Gaming or Study?
Cooking or Reading?
:3 bye hope you have a lovely day!
Answer:
Dog
Zebra
Sing
Yoga
Gaming
Cooking
What is the number of nitrogen molecules that reacted with excess hydrogen to make 2 x 10^10 molecules of ammonia? 3H2 + N2 <-------> 2 NH3 a. 2 x 10^10 b. 3 x 10^10 c. 5 x 10^9 d. 1x 10^10
The number of nitrogen molecules that reacted with excess hydrogen to make 2 × 10¹⁰ molecules of ammonia is 1 × 10¹⁰ molecules.
Given that :
The molecules of the Ammonia = 2 × 10¹⁰ molecules
The reaction is given as :
3H₂ + N₂ ⇄ 2NH₃
1 mol = 6.022 × 10²³ molecules
from the reaction it is clear that :
1 mole of the N₂ will produces the 2 mol of the ammonia.
therefore, 1 molecule of the nitrogen produces 2 mol of the ammonia
molecules of the nitrogen, N₂ = 2 × 10¹⁰ / 2
= 1 × 10¹⁰ molecules.
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Scientists have changed the model of the atom as they have gathered new evidence. One of the atomic models is shown below.
A purple ball in the center surrounded by overlapping concentric black ovals, each with a small green ball on each of the 6 ovals.
What experimental evidence led to the development of this atomic model from the one before it?
Every time a magnet was placed close to cathode rays, the same kind of bend occurred.
Describe cathode rays.
cathode ray, a stream of electrons exiting the cathode of a discharge tube that contains a gas at reduced pressure, or electrons released by a filament in some electron tubes.
What makes it a cathode?
Positively charged ions called cations give rise to cathodes, while anions give rise to anodes (negatively charged ions). The cathode is indeed the negative charges electrode in an electrically powered device.
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What process is this balanced equation? I + I -> I 2
The process is this balanced equation is I₂ + I⁻ = I⁻₃. Molecules of elemental iodine are consist of two atoms of iodine.
What is iodine ?Iodine is highly stable halogen. The chemical element iodine have an atomic number 53. The symbol of iodine is "I". It is present in halogen group.
An iodine atom formed by gaining an electron due to its high electron affinity. When it accepts an electron it will become iodide ion (I⁻).
Thus, The process is this balanced equation is I₂ + I⁻ = I⁻₃. Molecules of elemental iodine are consist of two atoms of iodine.
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Earth is the third planet from the sun why is this an insignificant claim
Answer:
The third planet from the sun is the one you happen to be living on right at this very moment. Yes, that is planet Earth.
Explanation:
It tells us how far the planet we are currently living on is towards our star (aka the sun) which is why that information/statement/claim is important.
What ends of the sugars are removed when sugar molecules join to form either disaccharides or polysaccharides????
Answer:
an -OH end from one molecule and an H end from another
Explanation:
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s: How many moles of fluorine atoms are in 5.50 moles of Freon (CCl₂F2)?
The number of moles of fluorine atoms are in 5.50 moles of Freon is 11 moles.
What are the moles of a substance?The mole is the amount of a substance that contains exactly as many molecules, atoms, radicals, ions, or electrons as there are in 12 grams of 12C.
The moles of atoms of an element present in a compound is obtained from the formula of the compound.
The moles of fluorine atoms present in 5.50 moles of Freon (CCl₂F₂) is obtained as follows:
From the formula of Freon, there are 2 moles of fluorine atoms in 1 mole of Freon.
In 5.50 moles of Freon, there will be 5.5 * 2 moles of fluorine = 11 moles of fluorine atoms.
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If the following elements are arranged by increasing atomic radius (from smallest to largest); F, B, Be, O, the correct order would be...
If the following elements are arranged by increasing atomic radius (from smallest to largest); F, B, Be, O, the correct order would be...F<O<B<Be.
What is Atomic radius ?A chemical element's atomic radius serves as a gauge for the size of its atoms.A chemical element's atomic radius, which is typically the average or typical distance between the nucleus's core and the outermost isolated electron. There are numerous non-equivalent definitions of atomic radius since the border is not a clearly defined physical entity.It also serves as a gauge for the size of an atom. Atomic radius of :F=42pmO=60pmB=85pmBe=112pmTo know more about atomic radius visit
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Psolvent = X Solvent x Po Psolute = X x Po Psolvet =(1-X ) x Po Delta P = Po Solvent-Psolvent = X x Po Complete the subscript on the following equations above with: Solution or Solvent or Solute
The equations of vapor pressure are :
P solvent = X solvent × P° solventP solute = X solute × P° soluteP solvent = 1 - X solute × P° solventΔP = P° solvent - P solvent = X solute × P° solventThe colligative properties of the solutions , depend upon the concentration of the solute and not depend of the identity of solute.
The vapor pressure equations are given as :
1) The P° solvent is the pure solvent, X solvent is the mole fraction of the solvent. The equation is given as :
P solvent = X solvent × P° solvent2) The P° solute is the pure solute and the X solute is the mole fraction of the solute. The equation is :
P solute = X solute × P° solute3) X solvent + X solute = 1 , the equation is :
P solvent = 1 - X solute × P° solvent4) ΔP = P° solvent - P solvent = X solute × P° solvent
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Firt, once in the imulation, click on "olution value". Move the blue lever (olute amount) and (olution volume) to the required amount and find the molarity of the following:
1. Uing Drink Mix mode:
a. What i the molarity when. 772 mole are diolved in. 500 Liter of water?
b. What i the molarity when. 453 mole are diolved in. 450 Liter of water?
Using Drink Mix mode:
a. To find the molarity when 772 moles of a solute are dissolved in 500 liters of water, you can use the formula:
Molarity (M) = number of moles of the solute present in the solution / liters of solvent
Molarity (M) = 772 moles / 500 liters
= 1.544 M
b. To find the molarity when 453 moles of a solute are dissolved in 450 liters of water, you can use the formula:
Molarity (M) = number of moles of the solute present in the solution / liters of solvent
Molarity (M) = 453 moles / 450 liters
= 1.01 M
It's worth noting that molarity is a unit of concentration and is often used to describe the concentration of a solute in a solution. It is calculated as the number of moles of solute per liter of solvent.
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explain in terms of their structures and bonding their relative melting points strengths and abilities to conduct electricity of graphene diamond and fullerene
Around 3600 degrees Celsius is the temperature at which graphite melts, but it sublimes rather than melting. Tetrahedrally organised carbon atoms are found in diamond, whereas there are an infinite number of carbon atoms in graphite.
What is melting point?The temperature at which a substance transforms from a solid into a liquid is known as its melting point. The temperature at which a substance transforms from a solid into a liquid is known as its melting point. The balance between the solid and liquid phases is reached at the melting point. Pressure affects a substance's melting point, which is often reported at a standard pressure of 1 atmosphere, or 100 kPa. The melting point is the fixed temperature at which a solid transforms into a liquid. For instance, at 0°C, ice cubes begin to melt and turn from a solid to a liquid.
How do you find melting point?By placing a small amount of an organic solid in a tiny capillary tube, affixing it to the stem of a thermometer centred in a heating bath, and gradually heating the bath, one may calculate the temperature at which melting begins and finishes. Melting points are frequently used to describe and rate the purity of organic and inorganic crystalline substances. Pure compounds melt at a fairly narrow temperature range of 0.5 to 1 °C, whereas contaminated, impure chemicals frequently show a huge melting gap.
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howany grams of carbon dioxide CO2 is produced when 3.5 moles of octane C8H18 is burned ?
Answer:
1232 g of carbon dioxide are formed
Explanation:
As octane is being burned it would be combustion reaction.
writing the balanced equation:
C8H18 + 25/2 O2 → 9 H2O + 8 CO2
now stepping up mole ratio from the balanced equation:
moles of octane : moles of carbon dioxide
1 : 8
3.5 : X
X = 3.5 x 8 = 28
therefore when 3.5 moles of octane are burned in air 28 moles of carbon dioxide are evolved.
now in order to calculate the mass of CO2 formed
molar mass of CO2 = 12 + (16 x 2) = 44g
now calculating the mass of 28 moles:
moles : mass
1 : 44 g
28 : X
X = 28 x 44 = 1232 g
1232 g of CO2 are formed
How many formula units are in 4.43 g of N2 molecules?
There are 9.6 * 10^22 formula units in 4.43 grams of the nitrogen molecule.
What is the number of the formula units?We know that the number of the formula units that we have can easily be obtained from the use of the Avogadro's hypothesis. Let us note that we can see that there are 4.43 g of the nitrogen molecules.
We have the number of moles of the nitrogen molecules as;
Number of moles = mass/molar mass
= 4.43/28 g/mol
= 0.16 moles
If 1 mole of the molecule contains 6.02 * 10^23 formula units
0.16 moles would contain 0.16 * 6.02 * 10^23/ 1
= 9.6 * 10^22 formula units
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how many moles of h are in one mole of the compound (nh4)3po4
A sample of ammonium phosphate, (NH4)3PO4 contains 18 moles of hydrogen atoms.
What is (nh4)3po4?Ammonium phosphate is NH4PO4, in one particle of this, they are 4 hydrogen atoms. 1 mole = 6.022x10^23 atoms/molecules (Avogadro's constant). So, 2 moles of hydrogen in 1 mole of H2O. One mole of Water is collected from 1 mole of Oxygen and two moles of Hydrogen.
By this definition, one mole of hydrogen is 2.016 grams, one mole of methane is 16.043 grams, and one mole of water is 18.015 grams. n one mole of hydrogen atoms, there exist roughly 6.02⋅1023 hydrogen atoms. Use the mass of the hydrogen gas to compute the gas moles directly; divide the hydrogen weight by its molar mass of 2 g/mole. For instance, 250 grams (g) of hydrogen gas corresponds
So we can conclude that There are 2 moles of hydrogen in 1 mole of water.
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How can I balance this?
The given chemical reaction can be balanced as written below:
[tex]\rm 4 Fe + 3O_{2} \rightarrow 2 Fe_{2}O_{3}[/tex].
What is a balanced chemical equation ?The balanced equation of a chemical reaction represents the perfect stoichiometry of all the reactants and products. Thus, the total mass in the reactant side must be equal to the total mass in the product side.
The number of each element in the reactant side must be equal with their number in the product side. In the given reaction, there are 2 Fe and 3 O in the product side.
To balance the number of oxygen, multiply by 3 in the reactant side and by 2 in the product side. Then we get 6 oxygens in both side. Now there are 4 Fe in the product side. Then put 4 to the Fe in the reactant side as written in the reaction above.
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How many molecuses are in 2.3 mole of carbon dioxide?
A carbon atom has a relative atomic mass of 13.5. 60% of the carbon atom has a mass number of 12.8, 30% of the carbon atom has a mass number of 13.8, whilst the remaining 10% has a mass number which is not known.
Calculate the mass number of the carbon isotope which is 10% of the Carbon 13.5 atom.
Give your answer to 1 decimal place.
The mass of the unknown isotope is 16.8.
What is the mass of the unknown isotope?Let us know that the relative atomic mass would be the weighted average of all the atomic masses of the elements that we have in the question as it has been stated.
Now we can see that we need to collect the masses of all the isotopes because;
Relative atomic mass = Weighted sum of the masses of all the isotopes
Thus;
13.5 = (0.6 * 12.8) + (0.3 * 13.8) + (0.1 * x)
x = mass of the unknown isotope
x = 13.5 - (7.68 + 4.14)/0.1
x = 16.8
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What is the mole fraction of water in methanol when 18 grams of h2o is added to 32 grams of methanol, ch3oh?
atomic weight of H2O=18
atomic weight of methanol=32
mole =gram weight/atomic weight
mole of H2O = 18/18=1
mole of CH3OH =32/32=1
mole fraction of H2O = mole of H2O/mole of H2O+mole of CH3OH
mole fraction of H2O=1/1+1=1/2=0.5
What is Mole?Mole, also spelled mol, in chemistry, a standard scientific unit for measuring large quantities of very small entities such as atoms, molecules, or other specified particles.The mole designates an extremely large number of units, 6.02214076 × 1023. The General Conference on Weights and Measures defined the mole as this number for the International System of Units (SI) effective from May 20, 2019. The mole was previously defined as the number of atoms determined experimentally to be found in 12 grams of carbon-12.The number of units in a mole also bears the name Avogadro’s number, or Avogadro’s constant, in honour of the Italian physicist Amedeo Avogadro (1776–1856). Avogadro proposed that equal volumes of gases under the same conditions contain the same number of molecules, a hypothesis that proved useful in determining atomic and molecular weights and which led to the concept of the mole.To learn more about Avogadro’s refer to:
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bonding theories and molecular geometry lab
Valence bond theory, Lewis theory and the molecular orbital theory are the three bonding theories in chemistry. Molecular geometry is the three dimensional arrangement of atoms in the molecule.
Bonding theories are the vital postulates in chemistry that provide the basic information regarding the bonds present in a particular molecule. Three bonding theories are Lewis theory, valence bond theory, and molecular orbital theory. In Lewis theory, the electrons and lone pairs are symbolized as dots surrounding the atom. In valence bond theory, electrons are shared among orbitals of atoms, that forms bonds. In molecular orbital theory, two atomic orbitals combine to make a molecular orbital. Bonding theories are very significant as they maintain the orientation in a bond. They provide information on the sort of bond present in the molecule, the sort of bonding taking place to form a simple or complex compound.
Molecular geometry is also known as the molecular structure. It is the three-dimensional structure or arrangement of atoms in a molecule. Helps to understand the molecular structure of a compound. It helps to determine the polarity, reactivity, phase of matter, color, magnetism, as well as the biological activity.
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The complete question is,
Explain bonding Theories and molecular geometry.
According to the law of conservation of mass, matter can be ________
Answer: According to the law of conservation of mass, matter can be neither created nor destroyed, but it can be transformed from one form to another.
Explanation: The law of conservation of mass is one of the fundamental principles of physics, which states that the total mass of a closed system remains constant over time. In other words, matter can be neither created nor destroyed, but it can be transformed from one form to another, such as through chemical reactions or nuclear reactions. This principle is based on the work of Antoine Lavoisier, who first proposed it in the 18th century.
What kind of bond is formed when one or more electrons are transferred from one atom to another?
A student has measured the volume of a sample of hydrogen gas and has found that
she has a total of 15.84 moles of the gas. What is the mass of this sample of
hydrogen gas? Please round your answer to two digits after the decimal point, and
remember to include correct, complete units (including substance formula).
The correct answer is 2.03×1/10² mol
500 cm³ = 0.5 L,760 mm of Hg=1 atm.
Now apply the ideal gas law, n= PV/RT
n= 1×0.5/ 0.0821×300
⟹n=2.03×10 ^−2 mol
What is the ideal gas law?
It is also called the general gas equation, is the equation of state for a hypothetical ideal gas. It is a good approximation of the behavior of many gases under many conditions, although it has several limitations. It was first stated by Benoît Paul Émile Clapeyron in 1834 as a combination of the empirical Boyle's Law, Charles' Law, Avogadro's Law, and Gay-Lussac's Law.To know more about ideal gas law, click the link given below:
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an object has a fixed volume and shape before it changes state. After the change, it still has a fixed volume but can now change in shape. Which change of state has occurred?
A. gas to liquid
b. gas to plasma
c. solid to liquid
d. liquid to gas
The object with fixed volume and shape is a solid. When it converts to liquid, it miss the shape but still have a definite volume. Thus, the given phase transition is solid to liquid.
What is phase transition ?The transition of one state of matter to the other is called phase transition. For example the transition from liquid to solid or solid to gas etc. are phase transitions. Phase transitions are physical changes.
In solid state, the particles are closely packed with strong intermolecular forces. Thus, they have a definite shape and size. In liquid phase, the molecules have some space to move and they lack a perfect shape and assume the shape of the container.
The molecules in gas phase, are far apart and they don't have a shape and volume. Therefore, the given transition is from solid to liquid. Hence, option c is correct.
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Explain how the size of the human population is affected by age structure, survivorship rate fertility, and migration. Make a prediction about the size of the human population. Justify your answer.
The size of the human population is affected by several factors, including age structure, survivorship rate, fertility, and migration.
Age structure refers to the distribution of individuals in a population by age. A population with a large proportion of young individuals is likely to have higher fertility rates and a higher potential for population growth. A population with a large proportion of older individuals is likely to have lower fertility rates and a lower potential for population growth.Survivorship rate refers to the likelihood of an individual surviving to a certain age. A population with a high survivorship rate is likely to have a larger population overall, as more individuals are living to reproductive age.What is the human population about?Fertility rate refers to the number of children born to women of childbearing age. A population with a high fertility rate is likely to have a higher potential for population growth.
Migration refers to the movement of individuals into or out of a population. A population with high levels of immigration is likely to have a higher potential for population growth, while a population with high levels of emigration is likely to have a lower potential for population growth.
Therefore, It is difficult to predict the size of the human population with certainty, as it depends on many complex factors and can be affected by unexpected events. However, based on current trends and projections, it is likely that the human population will continue to grow in the coming decades, although at a slower rate than in the past.
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What is the name given to compounds formed when elements or compounds react with oxygen?
Answer:
oxides
Explanation:
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For a given recipe, 14 cups of flour are mixed with 21 cups of sugar. How many cups of flour should be used if 36 cups of sugar are used?.
Draw a Lewis diagram for the amine C2H5NH2
The carbon atom forms a 4 sigma bond and is SP 3 with tetrahedral geometry. It is also SP 2 hybridized with tetragonal planner geometry with a 3 sigma & 1 bond. an oxygen atom with two loan electrons
What does a carbon atom represent?A live organism's body, coal, a carbon dioxide particle, and other kinds of existence are only a few examples of the many various ways that carbon can exist. Carbon atoms can change their forms as a result of several processes. Carbon can appear in a variety of things, such as carbon dioxide, anthracite, a cow, sugar, and diamond.
What is a simple carbon atom?It is a non-metal, denoted by the symbol C. There are 6 protons, 6 neutrons, and, of course, 6 electrons in it. Because of its almost infinite capacity for bonding with other carbon atoms, a carbon atom is regarded as distinctive and unique.
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Draw the Lewis structure of CH3OH2+.
Draw the Lewis dot structure of CH3OH2+.
The lewis structure of the CH₃OH₂⁺ :
H
| ..+
H - C - O - H
| |
H H
The given molecule is :
CH₃OH₂⁺
The number of the valence electrons of the carbon = 4
The number of the valence electrons of the hydrogen = 1
The number of the valence electrons of the oxygen = 6
The lewis structure for the molecule is given as :
H
| ..+
H - C - O - H
| |
H H
H
: ..+
H : C : O : H
: :
H H
The compound given has the formal charge of +1.
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How many grams of ammonia (NH3) can be produced from the reaction of 28 grams of nitrogen gas with an excess of hydrogen gas?
3H2 (g) + N2 (g) ----> 2 NH3 (g)
A. 5.05 gram NH3
B. 34.0 gram NH3
C. 17.0 gram NH3
D. 51.0 gram NH3
The grams of ammonia (NH₃) can be produced from the reaction of 28 grams of nitrogen gas with an excess of hydrogen gas is 34 g.
The reaction is given as :
3H₂ + N₂ ----> 2NH₃
The mass of the Nitrogen gas = 28 g
Moles of the N₂ = mass / molar mass
= 28 / 28 g/mol
= 1 mol
The 1 mole of the N₂ produces the 2 moles of the NH₃
Therefore , the moles of the NH₃ = 1 × 2
= 2 mol
The mass of the ammonia, NH₃ = moles × molar mass
= 2 × 17
= 34 g
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Under certain conditions, 2,4-hexadiendial can function both as a diene and a dienophile. Draw a structural formula for the Diels-Alder adduct formed by reaction of 2,4-hexadiendial with itself.
A conjugated diene and an alkene (dienophile) react to generate unsaturated six-membered rings in the Diels-Alder reaction. The reaction is also known as a "cycloaddition" because it results in the production of a cyclic product via a cyclic transition state.
Bicyclic structures with substituents in the endo position are more likely to arise during Diels-Alder reactions involving cyclic dienes. Diels-Alder reactions can only occur in conjugated dienes with the s-cis structure. A diene cannot conduct a Diels-Alder reaction if it is not conjugated or cannot be in the s-cis configuration. Ring-bound dienes are unable to spin and are thus locked in either an s-cis or an s-trans conformation.
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