Intermolecular force is the force of attraction that holds the particles in the atom together. The force referred to in the question is the force that binds the various elements together when they come together.
The intermolecular forces presented in the answer options in order of strength to weakness are ion-dipole hydrogen bonds dipole-dipole and van der Waals forces. The dipole-dipole interaction is the strongest intermolecular attraction. These are the weakest intermolecular forces and exist between all types of molecules, whether ionic or covalent, polar or non-polar.
Solids usually have the strongest intermolecular forces compared to liquids and gases. In solids, they are incompressible and dense because the particles are close together. The weakest intermolecular force is the London dispersion force. London Dispersion Force The London dispersion force is also known as the induced dipole induced dipole because it is a temporary attractive force that generates a temporary dipole. London dispersion exists in nonpolar monatomic gases.
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Answer:
nonpolar substance < polar substance < ionic substance
Explanation:
Answer key
Plz help me well mark brainliest if correct!!
Answer:
A
Explanation:
Waxing means getting bigger.
Waning is.. you guessed it... the exact opposite.
Answer:
a
Explanation:
..........................
What are the charges of the ions in an ionic compound containing cobalt(III) and fluoride ions?
Write the formula for the compound.
The charge on the ions in an ionic compound containing cobalt(III) and fluoride ions is Co³⁺ and F⁻¹ and the formula of the compound is CoF₃.
Ionic compounds are a type of chemical compound where the oppositely-charged ions of a metal and a nonmetal are attracted to each other to form an ionic bond.
The compound formed from the bonded ions will have very different properties from the elements that make up the compound.
While atoms are neutral because they have an equal number of protons and electrons, ions have a net charge and result when an atom loses or gains electrons.
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Which of the following is an example of something that is made of cells?
A flower
A ball
A sock
A television
Which elements in group is the most reactive nonmetals
Answer:
flourine
Explanation:
Which of the following is a possible
way to describe the SO3 component in
the reaction below?
Sa(s) + 120₂(g) → 8SO3(g)
A. 8 atoms SO3
B. 8 molecules SO3
C. 80.07g SO3
D. 32 LSO3
The correct answer is B. 8 molecules \(SO_3\). Option B
In the given reaction:
S(s) + \(O_2\)(g) → \(SO_3\)(g)
The stoichiometric coefficient in front of the \(SO_3\)molecule is 8, which indicates that 8 molecules of \(SO_3\)are formed as a product. This coefficient represents the ratio of the number of molecules involved in the reaction.
Option A (8 atoms \(SO_3\)) is incorrect because it only mentions the number of atoms, not molecules. The stoichiometric coefficient does not represent the number of atoms, but rather the number of molecules.
Option C (80.07g \(SO_3\)) is incorrect because it mentions a specific mass. The stoichiometric coefficient does not directly represent the mass of the substance, but rather the relative amount of molecules involved in the reaction.
Option D (32 \(SO_3\)) is incorrect because it mentions a specific volume. The stoichiometric coefficient does not directly represent the volume of the substance, but rather the relative amount of molecules involved in the reaction.
Therefore, the correct way to describe the \(SO_3\)component in the reaction is option B: 8 molecules \(SO_3\). This represents the ratio of the number of molecules of \(SO_3\)that are produced in the reaction.
Option B
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what is the formula for paracetamol
A gas occupies 700.0 mL at a temperature of 27.0 °C. What is the volume of gas at 120.0 °C assuming pressure did not change?
3122.0 mL of gas are present at 120.0 °C.
The volume of a gas is the amount of three-dimensional space it occupies. The volume of a gas is directly proportional to the temperature if the pressure is held constant.The force exerted perpendicularly to an object's surface in relation to its area is known as pressure. The average kinetic energy of the molecules that make up a system is measured by temperature.This means that the volume at 120°C will be the same multiple of the volume at 27°C. To calculate the multiple, we divide the final temperature by the initial temperature:
\(\frac{120.0\°C}{27.0\°C} = 4.44\)
Therefore, the volume at 120°C will be 4.44 times the volume of 700.0 mL at 27°C.
Volume at 120°C = 4.44 x 700.0 mL = 3122.0 mL
Therefore ,The volume of gas at 120.0 °C is 3122.0mL
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A 25 ml solution of 0.5 M NaOH is titrated until neutralized into a 50 ml sample of HCl?
The concentration of the acid is \(0.25 M\).
Titration is a laboratory technique used to determine the concentration of a substance in a solution by reacting it with a standardized solution of known concentration.
The titration formula can be given by,
(Volume of the Base) \(\times\) (Normality of the Base) = (Volume of the Acid) \(\times\) (Normality of the Acid)
\(\Rightarrow V_1N_1=V_2N_2\)
Given, the volume of the base (\(NaOH\)), \(V_1 =25 ml\).
The concentration of the base (\(NaOH\)), \(M_1=0.5 M\).
The equivalence of the base (\(NaOH\)) is \(1\).
Hence, the normality of the base (\(NaOH\)), \(N_1=\frac{0.5}{1}N=0.5N\).
Given, the volume of the acid (\(HCl\)), \(V_2 =50 ml\).
Let us assume that the normality of the acid (\(HCl\)) \(N_2\).
Substitute the values in the given formula of titration.
\((25\times0.5)=(50 \times N_2)\\\Rightarrow 12.5=50N_2\\\Rightarrow N_2=\frac{12.5}{50} N\\\Rightarrow N_2=0.25 N\)
Hence, the normality of the acid (\(HCl\)), \(N_2=0.25 N\).
The equivalence of the acid (\(HCl\)) is \(1\).
Therefore, the concentration of the acid, \(M_1=\frac{0.25}{1}=0.25 M\).
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Does a reaction occur when aqueous solutions of silver(I) acetate and sodium bromide are combined?
yesno
If a reaction does occur, write the net ionic equation.
Use the solubility rules provided in the OWL Preparation Page to determine the solubility of compounds.
Be sure to specify states such as (aq) or (s).
If a box is not needed leave it blank.
Yes, , we can see that the silver ion (Ag⁺) and the bromide ion (Br⁻) combine to form the insoluble silver bromide (AgBr) precipitate, which is the evidence of a reaction occurring.
Yes, a reaction occurs when aqueous solutions of silver(I) acetate and sodium bromide are combined. When these two solutions are mixed, a precipitation reaction takes place.
To determine the net ionic equation, we need to identify the soluble and insoluble compounds based on the solubility rules.
Silver(I) acetate (AgC2H3O2) is a soluble compound because all acetates are soluble according to the solubility rules. It dissociates completely in water to form Ag⁺ and C2H3O2⁻ ions.
Sodium bromide (NaBr) is also a soluble compound because all bromides are soluble except when combined with silver, lead(II), or mercury(I) ions. It dissociates in water to form Na⁺ and Br⁻ ions.
When the two solutions are combined, a double displacement reaction occurs. The silver ion (Ag⁺) from silver(I) acetate reacts with the bromide ion (Br⁻) from sodium bromide to form a solid precipitate of silver bromide (AgBr).
The balanced molecular equation for the reaction is:
AgC2H3O2(aq) + NaBr(aq) → AgBr(s) + NaC2H3O2(aq)
To write the net ionic equation, we eliminate the spectator ions (ions that do not participate in the reaction). In this case, the sodium ion (Na⁺) and the acetate ion (C2H3O2⁻) are spectator ions and do not change during the reaction. The net ionic equation is:
Ag⁺(aq) + Br⁻(aq) → AgBr(s)
In this net ionic equation, we can see that the silver ion (Ag⁺) and the bromide ion (Br⁻) combine to form the insoluble silver bromide (AgBr) precipitate, which is the evidence of a reaction occurring.
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1. a Use the valence electron molecular orbital diagram for F2 to propose ground state F2ions that satisfy the following conditions
(1.5 points) (i) A F2 ion that is paramagnetic and that has a non-integer bond order.
(1.5 points) (ii) A F2 ion that is paramagnetic and that has an integer bond order.
(1.5 points) (iii) A F2 ion that is diamagnetic and that has a bond order of 3.
Clearly show the charge on your ion, label all valence molecular orbitals, and show the corresponding electrons in their orbitals. Full calculations for bond orders must be included.
b) Using only the valence electron molecular orbital diagram for F2, is a ground state diamagnetic ion with a bond order of 2 possible? Write one or two sentences to explain why or why not.
What is the temperature (in K) of 0.660 mole of neon in a 2.00 L vessel at 4.68 atm?
\(\\ \sf\longmapsto PV=nRT\)
\(\\ \sf\longmapsto 4.67(2)=0.66(8.314)T\)
\(\\ \sf\longmapsto 9.34=5.48T\)
\(\\ \sf\longmapsto T=1.7°C\)
T=274.7kKey words
P=PressureV=Volumen=No of molesR=Universal gas constantT=TemperatureFissure eruptions can produce a flattened layer of cooled lava called a lava ____.
Answer:
magma
Explanation:
brainly me and il give reason in comment
Which of the following processes absorbs heat energy from the environment?
A.
Freezing
B.
Deposition
C.
Condensation
D.
Melting
Answer:
Freezing
Explanation:
To break this bond, heat energy is absorbed from the surroundings to separate the molecules apart from each other. Freezing is the process in which liquid changes to a solid state. During the freezing process also, heat energy is released.
Hydrogen reacts with oxygen according to the balanced equation
2H₂ (g) + O2(g) → 2H₂O(g). If X is the number of molecules of H₂ which react,
then the number of O2 molecules reacting is
Answer:
x/2
Explanation:
X = 2 molecules of H2
For 2 molecules of H2, there's only 1 molecule of O2. Meaning, there's twice the amount of H2, so O2 = x/2 molecules.
I hope I'm understanding this question right.
What reaction type is 1p4+302 = 2p2O3
Answer:
13
Explanation:
What type of reaction?
HCN,Na2So4
Mg3N2
Co2, H2O
Cu,Zn(NO3)2
Na,N2
HCN, Na2SO4: Combination of compounds.
Mg3N2: Chemical compound.
CO2, H2O: Dissolution or hydration reaction.
Cu, Zn(NO3)2: Single-replacement reaction.
Na, N2: Combination of elements.
Let's analyze each chemical combination to determine the type of reaction involved:
HCN, Na2SO4:
The combination of hydrogen cyanide (HCN) and sodium sulfate (Na2SO4) does not represent a specific chemical reaction. It is simply the combination of two compounds.
Mg3N2:
Mg3N2 represents a chemical compound, magnesium nitride. It does not indicate a specific reaction.
CO2, H2O:
The combination of carbon dioxide (CO2) and water (H2O) represents a chemical reaction known as hydration or dissolution. When carbon dioxide dissolves in water, it forms carbonic acid (H2CO3), which can further dissociate into hydrogen ions (H+) and bicarbonate ions (HCO3-).
Cu, Zn(NO3)2:
The combination of copper (Cu) and zinc nitrate (Zn(NO3)2) represents a single-replacement reaction. Copper displaces zinc from the compound, resulting in the formation of copper nitrate (Cu(NO3)2) and zinc metal (Zn).
Na, N2:
The combination of sodium (Na) and nitrogen gas (N2) does not represent a specific reaction. It is simply the combination of two elements.
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What term describes the length of one complete wave cycle?
Answer: Wavelength
Explanation:
The term wavelength describes the length of one complete wave cycle.
What is wavelength?The length of one complete wave cycle is referred to as the wavelength. One wavelength, for example, would be the distance from crest to crest or trough to trough.
Compressions and Rarefactions are areas of maximum displacement in a Longitudinal wave.
The wavelength is the distance between two wave crests, and it is also the distance between two wave troughs.
The frequency is measured in cycles per second (Hz) and is the number of vibrations that pass over a given spot in one second (Hertz). This implies the relationship between wavelength and frequency.
The greater the energy, the shorter the wavelengths and higher the frequency. As a result, the longer the wavelengths and lower the frequency, the lower the energy. E = hv is the energy equation.
Thus, the answer is wavelength.
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why is co2 hard to break apart than h2o
4. Identify the conjugate acid – base pairs in the following equations;
H2PO4- + OH- HPO42- + H2O
Answer:The correct options is, H2O and H3O+
Explanation:
According to the Bronsted Lowry conjugate acid-base pair concept, an acid is a substance which donates protons and a base is a substance which accepts protons.
From the given options, and represents a base-conjugate acid pair.
The balanced reaction will be :H2O +H+ = H3O+
In this, H2O is a base which accepts a proton to form conjugate acid .
Hence, the correct options is,H2O and H3O+
Taking into account the Brønsted-Lowry acid-base theory, the conjugate acid – base pairs are H₂PO₄²⁻/HPO₄⁻ and H₂O/OH⁻.
Brønsted-Lowry acid-base theoryThe Brønsted-Lowry acid-base theory (or the Brønsted-Lowry theory) identifies acids and bases based on whether the species accepts or donates protons or H⁺.
According to this theory, acids are proton donors while bases are proton acceptors. That is, an acid is a species that donates an H⁺ proton while a base is a chemical species that accepts an H⁺ proton from the acid.
So, reactions between acids and bases are H⁺ proton transfer reactions, causing the acid to form its conjugate base and the base to form its conjugated acid by exchanging a proton.
In other words, a conjugate base is an ion or molecule resulting from the acid that loses the proton, while a conjugate acid is an ion or molecule resulting from the base that gains the proton:
acid + base ⇄ conjugate base + conjugate acid
Conjugate acid – base pairs in this caseIn this case, you know
HPO₄⁻ + OH⁻ → H₂PO₄²⁻ + H₂O
HPO₄⁻ behaves like acid because donates an H⁺ proton while OH⁻ behaves like base because accepts an H⁺ proton from the acid.
So, H₂PO₄²⁻ is the conjugate base of the HPO₄⁻ and H₂O is conjugate acid of OH⁻.
In summary, the conjugate acid – base pairs are H₂PO₄²⁻/HPO₄⁻ and H₂O/OH⁻.
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How many grams of argon (Ar) are in 32.1 moles?
Answer:
The answer is 39.948.
Explanation:
you are converting between grams Argon and mole. You can view more details on each measurement unit: molecular weight of Argon or mol The molecular formula for Argon is Ar. The SI base unit for the amount of substance is the mole.
Answer:The answer is 0.025032542304996.
Explanation:
We assume you are converting between moles Argon and gram. You can view more details on each measurement unit: molecular weight of Argon or grams The molecular formula for Argon is Ar. The SI base unit for amount of substance is the mole.
draw the structure(s) of the branched ether(s) with the chemical formula c4h10o?
The structure of the branched ether of chemical formula c4h10o, is \(CH_3 - CH_2 - CH_2 - O - CH_2 - CH_2 - CH_3.\)
\(C_4H_{10} O\) is a branched ether, also known as an alkoxyalkane or a glycol ether. It is an organic compound composed of four carbon atoms, ten hydrogen atoms, and one oxygen atom. Its molecular formula is \(C_4H_{10} O\)and its molecular weight is 86.13 g/mol.
Its structure is linear, with a carbon backbone and an oxygen atom attached to two of the carbons in the chain. The oxygen atom is then connected to two methyl (\(CH_3\)) groups, one on each side of the central carbon atom.
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whats the energy in joules of one mole of photons of visible light having a wavelength of 4.11×10^2 nm?
The energy in joules of one mole of photons of visible light having a wavelength of 4.11×10^2 nm? can be expressed as 2.9*10^5 J
How can the energy be calculated?From the question we were told to find the energy and the parameters that is needed to calculate these are;
c=3*10^8
h= 6.626 * 10^-34 J.s
1 mol photons = 6.023x10^23 photon
λ = 4.11×10^2 nm = 4.11 × 10-7 meters
The parameters can be input as Energy of one mole photon (E) = ( 6.023x10^23 * 6.626 * 10^-34 * 3*10^8)/ (4.11 × 10^-7)
=291302
=2.9*10^5 J
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Hello please someone help me with this
An equation is formed of two equal expressions. The value of x in the given equation can be -5.237 or 3.437.
What is an equation?An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
In the given equation, the value of x can be found as shown below,
x²/(0.001 - x) = 1.8 × 10⁻⁴
x²/(0.001 - x) = 1.8/10000
x² · 10000 = (0.001 - x) · 1.8
\(x=\dfrac{-0.00018+\sqrt{0.0000007524}}{2},\:x=\dfrac{-0.00018-\sqrt{0.0000007524}}{2}\)
x = -5.237, 3.437
Hence, the value of x in the given equation can be -5.237 or 3.437.
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Please if you know the answer put it thanks
The diagram shows a picture of a compound.
What is a compound?A compound is a substance that is made up of two or more different elements that are chemically bonded together in a specific ratio.
This means that the elements are combined in a way that creates a new substance with different physical and chemical properties than the individual elements.
Compounds can be formed through a variety of chemical reactions, such as combining elements through a chemical bond or through a reaction between an acid and a base.
So for the given diagram, we can see that it represents two or more elements chemically combined.
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A chemist determines that a substance is composed of 30.4% nitrogen by mass and 69.6% oxygen by mass. The molar mass of the compound is 230.5 g/mol.
A chemist determines that a substance is composed of 30.4% nitrogen by mass and 69.6% oxygen by mass. The molar mass of the compound is 230.5 g/mol, the molecular formula is NO₂.
We must compute the empirical formula in order to ascertain the compound's chemical composition.
If we have 100 grams of the compound.
This suggests we have:
30.4 g of nitrogen
69.6 g of oxygen
Now, we have to convert the mass of each element to moles.
The molar mass of nitrogen (N) = 14.01 g/mol
the molar mass of oxygen (O) = 16.00 g/mol.
Number of moles of nitrogen (N):
2.17 mol
Number of moles of oxygen (O):
4.35 mol
The simplest whole-number ratio between the moles of nitrogen and oxygen must now be determined. To calculate the ratio, we divide both numbers by the smaller value.
Moles N / moles O = 2.17 mol / 2.17 mol = 1.00
Moles O / moles O = 4.35 mol / 2.17 mol = 2.00
The ratio is approximately N₁O₂.
We divide the subscripts by their greatest common divisor to obtain the simplest ratio, since we are looking for the empirical formula. The empirical formula is NO₂ since the greatest common divisor in this situation is 1.
The molecular formula of the compound is NO₂.
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Determine whether the following five molecules are polar or nonpolar and explain your answer:
a) Beryllium chloride b) Hydrogen sulphide c) Sulphur trioxide d) Water e) Trichloromethane
The following are categorized into polar or nonpolar molecules:
a) Beryllium chloride - nonpolar b) Hydrogen sulphide - polar c) Sulphur trioxide - nonpolar d) Water - polar e) Trichloromethane - polar How to determine polar or nonpolar?a) Beryllium chloride (BeCl₂) is a nonpolar molecule. The Be-Cl bond is polar due to the electronegativity difference between beryllium and chlorine, but the molecule is linear with the two polar bonds pointing in opposite directions, resulting in a net dipole moment of zero.
b) Hydrogen sulphide (H₂S) is a polar molecule. The H-S bond is polar due to the electronegativity difference between hydrogen and sulfur, and the molecule has a bent shape, resulting in a net dipole moment that is not zero.
c) Sulphur trioxide (SO₃) is a nonpolar molecule. The S-O bonds are polar due to the electronegativity difference between sulfur and oxygen, but the molecule is trigonal planar with the three polar bonds pointing in different directions, resulting in a net dipole moment of zero.
d) Water (H₂O) is a polar molecule. The H-O bond is polar due to the electronegativity difference between hydrogen and oxygen, and the molecule has a bent shape, resulting in a net dipole moment that is not zero.
e) Trichloromethane (CHCl₃) is a polar molecule. The C-Cl bonds are polar due to the electronegativity difference between carbon and chlorine, and the molecule has a tetrahedral shape, resulting in a net dipole moment that is not zero.
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What is a gas in the atmosphere that blocks high amount of infrared light?
What are these types of gases called?
The gases in the Earth's atmosphere that block a high amount of infrared light are called greenhouse gases.
These include carbon dioxide (CO₂), methane (CH₄), nitrous oxide (N₂O), and fluorinated gases, among others.
Greenhouse gases trap heat within the Earth's atmosphere and play a significant role in regulating the Earth's temperature.
However, when their concentration increases beyond natural levels, they can cause the Earth's temperature to rise, leading to global warming and climate change.
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Which statement is an example of an observation a scientist would make to classify a rock?
A rock is larger than other rocks.
A rock was found in a stream.
A rock is formed from molten lava.
A rock cracks in half after a rainstorm.
Answer:
A rock is formed from molten lava.
Explanation:
got it right on edge 2021
The statement is an example of an observation a scientist would make to classify a rock is a rock is formed from molten lava. Therefore, option C is correct.
What is molten lava ?The term molten lava is also known as magma. The lava is also used for the solidified the rock produced by the cooling of a molten lava. The molten lava is made up of a slush of crystals, liquid, and bubbles.
The molten lava specially coming from the Earth's middle layer, and the sandwiched between the crust and the core. The term magma for molten rock that is underground and lava for molten rock that split through the Earth's surface.
A rock is formed from molten lava is an example of an observation a scientist would make to classify a rock.
Thus, option C is correct.
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how does elemt's atomic mass differ from its mass number?
Answer:
Mass number is a whole number because it is the sum of number of proton and number of neutrons whereas atomic mass is fractional because it is the average relative mass of its atoms as compared with mass an atom of C-12 isotope taken as 12.
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______ + _______ --> H2O + FrF Complete and balance the equation representing neutralization reaction.
The general form of a neutralization reaction is HF + FrOH → FrF + H₂O
Which of the following is the formula for a neutralisation reaction?We refer to this as a neutralisation reaction. Only this reaction, which produces NaCl and water as products, is a neutralisation reaction since it involves HCl and NaOH. The resulting response is listed below: NaCl(aq) + H₂O = HCl(aq) + NaOH(aq) (l)
Which of these reactions neutralises an effect?The interaction of H⁺ ions and OH⁻ ions produces water in a neutralisation reaction, which occurs when an acid and a base combine to make water and a salt. The neutralisation of a strong acid and strong base yields a pH of 7.
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