Answer:
Methanol is the solvent in this solution.
Explanation:
Mixtures are the union of two or more pure substances, which can be classified as heterogeneous when the components of the mixture can be observed and homogeneous when the components cannot be observed (they are not distinguished).
When the mixtures are homogeneous, it can be said that they are chemical solutions.
In a solution you can distinguish solutes and solvent. A solute is a substance that dissolves in another with which it forms a solution. The solute is normally a solid, but it can also be a liquid or a gas. It is found in a lower proportion than the solvent in a solution.
It is called a "solvent", the element that dissolves in the other. That is, the solvent is the substance that dissolves a solute, forming a homogeneous solution. This is normally a liquid, but it can also be a solid or a gas. It is found in greater proportion than the solute in a solution.
In this case, since methanol is the component that has the greatest volume, it means that it is found in a greater proportion. So methanol is the solvent in this solution.
Answer:
Its (A) methanol
Explanation:
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Name the following straight-chain
alkane.
CH3CH2CH2CH3
A. butane
B. ethane
C. propane
D. methane
Answer:
B. Propane
Explanation:
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SO NOT HALAL MODE :(
Answer:
umm
Explanation:
are bath bombs covalent or ionic bonds?
Name one situation in which gravi- tational potential energy might be useful, and name one situation in which it might be dangerous.
Be as explicit as you can in describing how the covalent bond between an atom of Chlorine and an atom of Iodine forms. (What happens to the electrons, which electrons are involved, and what allows this to happen MUST all be part of your answer to receive full credit.)
When two atoms of chlorine and iodine join together to form a covalent bond, their outermost electrons interact to form a chemical bond.
What is a Covalent bond?
A covalent bond is a type of chemical bond that involves the sharing of a pair of electrons between two atoms. Covalent bonds are formed when two atoms come together to share their electrons in order to reach a more stable electron configuration. As a result, the two atoms become bonded together by the attraction of their shared electrons.
The chlorine atom has seven valence electrons, while the iodine atom has seven as well. Both atoms will want to complete their octets, so the two atoms share their outermost electrons with each other. During the formation of the covalent bond, the chlorine atom will donate one of its electrons to the iodine atom, while the iodine atom will donate one of its electrons to the chlorine atom. This sharing of electrons allows the two atoms to form a single bond and fill their octets, forming a covalent bond.
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What behavior of light PROVES that it is a wave? Hint: will this ONLY happen because light is a wave, or could it also be true of fast moving particles? *
Reflection of light
Absorption of light
Light changes speed in glass and water.
Interference between two or more light waves
Answer:
Light changes speed in a glass of water.
Explanation:
Place the following in order of increasing magnitude of lattice energy:
K2O Rb2S Li2O
least lattice energy < --- --- ---> most lattice energy
I am really struggling with how to calculate lattice energy. So if you could, please explain how you got the answer and how that method could be generalized to other similar questions. I realize it has something to do with the charge product between the elements in the molecule, and secondary to that is the atomic radius... it's just not clicking for me to do on the fly.
Li2O > K2O > Rb2S is the order of given compounds lattice energy in the increasing order
Lattice energy is a measure of the strength of the electrostatic attraction between the positively charged cations and negatively charged anions in an ionic compound. The greater the lattice energy, the stronger the electrostatic attraction and the more stable the compound.The most common method for determining lattice energy is the Born-Haber cycle. This method uses thermochemical data of the individual steps in the formation of an ionic compound to calculate the lattice energy. However, it is often impractical to use this method in a test environment, so a more practical method that is used to compare lattice energies of different compounds is the use of the Coulomb's law which relates the lattice energy to the charge product of the cations and anions and the distance between them.
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Can being obese kill?
which of the following is a combustion reaction ? ( please answer asap !! ) <3
Answer: 3
Explanation:
Compare a nuclear reaction, such as uranium’s alpha particle emission, with a nonnuclear reaction, such as the reaction of sodium with chlorine. What’s the fundamental difference between these two types of reactions?
Be sure to discuss electrons vs nuclear changes and fundamental differences.
A nuclear reaction like α decay takes place in the nucleus of an atom.An element becomes a different element. A chemical reaction like the formation of NaCl involves rearranging the electrons, which are outside the nucleus. The elements are not change. Salt is consists of sodium and chlorine.
What is nuclear reaction ?The splitting of the uranium-235 nucleus when it is blasted with neutrons is a crucial illustration of nuclear fission. This nuclear reaction can result in a number of different compounds.
Nuclear vs Chemical reactions
1. Alpha decay
U₉₂²³⁸ ⇒ He₂⁴ + Th₉₀²³⁴
A nuclear reaction like α decay takes place in the nucleus of an atom.
An element becomes a different element.
2. Chemical reaction
Na· + ·Cl ⟶ Na⁺ + Cl⁻
A chemical reaction like the formation of NaCl involves rearranging the electrons, which are outside the nucleus.
The elements are not change. Salt is consists of sodium and chlorine.
Thus, A nuclear reaction like α decay takes place in the nucleus of an atom.
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3. Why are fossils so rare?
the conditions needed to form the
fossil are rare
most organisms die when eaten by
others
all organisms form fossils when
they die, we just have not found them
yet
Answer:
fossils are rare bc most dead organisms get decayed by environmental change and decomposers,most fossils are parts of bones and mostly found indry areas like deserts
select all that apply. please help! i will mark you brainliest
Kinetic energy increases as mass increases
The shape of the mass vs energy graph shows a linear relationship
When we double the mass, we double the energy.
Interpreting a graphThe graph shown in the image is a plot of the kinetic energy of objects on the y-axis and the mass of the objects on the x-axis.
The graph is a straight line. This shows that there is a linear relationship between the two parameters - the kinetic energy and mass of objects. Thus, the kinetic energy increases as mass of objects increases, and decreases as mass of objects increases.
From the graph, when the mass of objects are doubled, there is also a double in the amount of the kinetic energy of objects.
In summary, the graph shows that:
Kinetic energy increases as mass increasesThe shape of the mass vs energy graph shows a linear relationshipWhen we double the mass, we double the energy.More on interpreting graphs can be found here: https://brainly.com/question/28418462
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does vinegar conduct? yes or no
If I have 2.00 moles of a gas at a pressure of 0.600 atm and a volume of 12.0 liters, what is the temperature?
Answer:
there it is fella tried on ma own consciousness
2. How many moles of helium are present in a balloon at STP if the volume is 3.7 L? Please show all work!
Using the Ideal Gas Law equation: [tex]PV=nRT[/tex]
P = pressure (kPa)V = volume (L)n = moles (mol)R = gas constant( [tex]\frac{kPaL}{molK}[/tex])T = Temperature (K)STP also known as Standard Temperature and Pressure is a set of conditions at sea level
At STP:
P = 101.3 kPa
T = [tex]0^o C[/tex] or 273 K
[tex]n=\frac{PV}{RT}[/tex]
[tex]n=\frac{101.3kPa)(3.7L)}{(8.31\frac{kPaL}{molK})(273K)}[/tex]
[tex]n = 0.16 mol[/tex]
In an experiment, potassium chlorate decomposed according to the following chemical equation.
2 KClO3 → 2 KCl + 3 O2
If the mass of potassium chlorate was 240 grams, what is the mass of oxygen gas formed?
Answer Choices:
A)
94. 03g
B)
1378g
C)
41. 8g
D)
612. 5g
Grams have been employed to estimate the mass of decomposition. Option C is correct, so.
The chemical response is as follows:
Every mole of must be broken to generate one mole of KCl.
180 kilograms of KCl was produced.
KCl produced in moles =
Produced moles of KCl equals moles.
Degradation of the same material is necessary for the creation of moles of KCl.
Therefore, the moles of the must be decomposed = moles.
Decomposition of mass equals moles of molecular weight
122.2 grammes of moles must be degraded from the mass.
Has to be decomposed for the production of 2 moles of KCl =
kilos.
Thus, kilograms has supplied the mass of decomposition. Option C is correct, however.
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True or false chemical potential energy is energy stored in a substance because of its composition 
Answer: yes
Explanation:
Chemical potential energy is energy stored in a substance because of its composition.
Answer:
True
Explanation:
Chemical Potential Energy Energy is the capacity for doing work or supplying heat. When you fill your car with gasoline, you are providing it with potential energy. Chemical potential energy is the energy stored in the chemical bonds of a substance.
Make a claim about how exercise affects the balance of salt and water in your body
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If a strong force acts on the metal towers of the suspension bridge, the towers will not break into pieces, like glass would, but will bend instead. Which property of metals explains this phenomenon?
The periodic chart has many different types of elements. Some elements are metals, some are nonmetals, and yet others are metalloids. Therefore, ductility is the property of metals that explains the given phenomenon.
What is metal?Metals are hard, conduct electricity, are ductile, lustrous, and malleable materials. Since metals have free electrons that's why they can conduct electricity. Since atoms in metals are very closely packed in a definite crystal solid. It is not brittle that is it can not be broken down easily.
If a strong force acts on the metal towers of the suspension bridge, the towers will not break into pieces, like glass would, but will bend instead. Ductility is the property of metals that explains the given phenomenon.
Therefore, ductility is the property of metals that explains the given phenomenon.
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Which molecular geometry, of an ABn molecule, results in a polar molecule?
O tetrahedral
O trigonal pyramidal
O square planar
O linear
Answer:
trigonal pyramidal
Explanation:
In the case of water.
Step 4: measure the mass of the book
The book will serve as a flat surface on which you later place additional weights. It has its own mask but you need to measure.
Zero the balance. Place the book on the balance.
Measure the mass of the nearest gram (1g)
498 g
In this experiment, you will measure all masses in kilograms. Convert the books mass to kilograms
0. 498 kg
The weight of the book in kilograms is 0.498Kg.
A body's bulk is an innate characteristic. It was widely believed to be related to the volume of matter in a physical body prior to the discovery of the atom and particle physics.
You can work on a level surface provided by the book.
will eventually add more weights. It is distinctive in its own way. The mass must be measured.
the account balance to 0 the scale with the book on it. Weigh the object down to the nearest gram (1 g). 498g In this experiment, all masses will be measured in kilograms. the books weigh 0.498 kg in kilograms.
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What term do we use to describe how bright a star “seems” to us here on Earth?
absolute magnitude
apparent magnitud
Answer:
Apparent magnitude
Explanation:
By definition, Apparent magnitude which is usually denoted by "m" is the measure of the brightness of a star or even other astronomical objects that are observed from Earth. Meanwhile the absolute magnitude is defined as the intrinsic luminosity emitted by a star or other astronomical objects.
Thus, apparent magnitude is correct.
Please help, I have tried everything that I can think of
Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, theoretical yield of Al[tex]_2[/tex]O[tex]_3[/tex] is 136g.
What is mole?The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity or amount of substance. We know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number. The stoichiometry represents the number of moles.
4AI + 3O[tex]_2[/tex]→ 2Al[tex]_2[/tex]O[tex]_3[/tex]
moles of Al =54/26=2.07
moles of O[tex]_2[/tex]=64/32=2
Since oxygen is limiting reagent, so product will be according to oxygen
Theoretical yield of Al[tex]_2[/tex]O[tex]_3[/tex]=136g
Therefore, theoretical yield of Al[tex]_2[/tex]O[tex]_3[/tex] is 136g.
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What volume will 25.0g ammonia occupy at stp
Answer:
The volume of 25 g O2 at STP is ~18 L.
Explanation:
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Which of the following is the strongest type of interaction that occurs between the atoms within the circled areas of the two molecules represented above? A) Polar covalent bond B) Nonpolar covalent bond C) Hydrogen bond D) London dispersion forces
The strongest type of interaction that occurs between the atoms is hydrogen bond.(option c)
A hydrogen atom that is bound to a highly electronegative atom and another highly electronegative atom that is close by interact with one another to form hydrogen bonds, which are an unique kind of attractive intermolecular interactions. This process is known as hydrogen bonding.
As a result of hydrogen bonding, a hydrogen atom simultaneously forms a covalent bond with one electronegative atom and a hydrogen bond with the other. These are the prerequisites for hydrogen bonding:
1.A strongly electronegative atom connected to the hydrogen atom must be present in the molecule. The degree of polarization of the molecule increases with increasing electronegativity.
2.The electronegative atom should have a tiny size. The strength of the electrostatic attraction increases with decreasing size.
So, the hydrogen bonding is the strongest bond.
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What is the relationship between CO2 levels and sea levels?
The relationship between the CO₂ and the sea levels is the carbon dioxide is higher about 10 % at deep ocean than the surface.
This warms world due to the greenhouse gases that included the carbon dioxide , the water heat up and it expands due to which the sea level rises. if we remove the extra heat from the ocean that caused by the short lived gases , it lowers the sea levels and this process is very slow.
The carbon dioxide that dissolves in the ocean will cause the sea water to be acidify. this will harmful for the shellfish and the corals.
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Can someone please help me with this question??
Which of the following molecules are polar: Cl2, CO2, BF3, NO, SO2, XeF4
Group of answer choices
O NO, SO2 only
O Cl2, CO2 only
O NO, XeF4 only
O BF3, XeF4 only
Only the molecules of NO, SO2 are polar. These chemicals are referred to as polar solvents since they have both positive as well as ends.
What does the chemical term "polar" mean?a structure where the density of electrons is unevenly distributed. Nonpolar refers to a structure where the density of electrons is more or more uniformly distributed. Numerous physical, molecular, and ecological properties of molecules are influenced by polarity, which can take many different forms.
Why are bonds polar?A polar molecule bond is one in which there is an electrostatic potential difference in between atoms of between 0.5 and 2.0. A polar covalent link is a type of covalent bond with which the atoms are attracted to electrons in uneven amounts, resulting in looked.
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What is the name of most reactive non-metal element on the periodic table?
The name of most reactive non-metal element on the periodic table is fluorine
Fluorine is the nonmetal in the periodic table that is the most reactive.
On the Pauling scale, it has the highest electronegativity of any element (3.98). Fluorine is a highly reactive, diatomic gas that may mix with practically every other element to form compounds that have entirely different properties from either of the original components. The boiling point of fluorine is -188 °C (-310 °F).
Hydrofluoric acid and hydrogen fluoride gas are produced during the reaction with water: HF + H₂O ⇒H⁺ + HF + OH.
Chemical elements are shown on a periodic table in order of their atomic number. The classification of elements and their relationships to one another can be understood using the periodic table.
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Calculate the frequency of a photon with an energy of 4. 26 x10-19 J and a wavelength of 4. 67 x 10-7m.
[E= 6. 626 x 1034 x frequency C(3. 0 x 108 m/s) = wavelength x frequency]
The frequency of a photon with an energy of 4. 26 x10-19 J and a wavelength of 4. 67 x 10-7m. [E= 6. 626 x 1034 x frequency C(3. 0 x 108 m/s) = wavelength x frequency] is 28.22 × 10¹⁵hz.
So formula is :-
Energy of photon, E=hc/λ or λ=hc/E
E = hν = hc/λ,
Where, h=6.626×10−³⁴Js,c=3×10⁸
By putting all these values, we get:-
4.26× 10-¹⁹ = 6.626×10-³⁴ × ν
v = 4.26 × 6.626 × 10¹⁵
= 28.22 × 10¹⁵ hz
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