What phyical and chemical propertie would be important in the tin that plate the outide of the can
Answers
Tin is not easily oxidized and resists corrosion because it is protected by an oxide film. Tin resists corrosion from distilled sea and soft tap water, and can be attacked by strong acids, alkalis and acid salts. Tin is used in for can coating: tin-plated steel containers are widely used for food preservation.
What happens when tin reacts with acid?
Characteristics: Metallic tin is soft and malleable. It slowly dissolves in dilute nonoxidizing acids or more readily in hot concentrated HCl. It reacts with HNO3 to form metastannic acid, H2SnO3, a white substance insoluble in alkalies or acids.
Tin can it oxidize things?
A reducing agent is TIN(II) OXIDE. due to slow oxidation to tin(IV) oxide, unstable in air. This oxidation starts to burn incandescently at 300 °C. powerful oxidizing agents incompatible.
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Related Questions
Perform the following mathematical operation and then report the answer in scientific notation.
554.3x10^117 - 5044x10^116 =
If an incorrect number of significant figures is used, the problem will be marked wrong.
Answers
The result of 554.3x10^117 - 5044x10^116 in standard form is -4988.57 x10^116
What is standard form?The term standard form refers to a way in which mathematical notation is made much easier. It is always a number multiplied by 10 raised to a given power.
As such, the problem 554.3x10^117 - 5044x10^116 can be written as; 55.43x10^116 - 5044x10^116 = -4988.57 x10^116
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For the reaction H2 + O2→ H2O, how many grams of water are produced from 6.00 mol of hydrogen?
Answers
Answer:
108 g
Explanation:
2H₂ + O₂ ⇒ 2H₂O
1) n(H₂) : n(H₂O) = 2 : 2
Hence, n(H₂O) = n(H₂) = 6,00 mol
2) m(H₂O) = n × M = 6,00 mol × (2 + 16) g/mol = 6,00 × 18 mol = 108 g
A 0.150 M Na2SO4 solution is saturated with Ag2SO4. It has a [Ag+] equal to 9.7 × 10–3. What is the value of Ksp for Ag2SO4?
Answers
A 0.150 M Na2SO4 solution is saturated with Ag2SO4. It has a [Ag+] equal to 9.7 × 10–3. The value of Ksp for Ag2SO4 is 1.4 × 10^-5.
The first step to solving this problem is to write the balanced chemical equation for the dissociation of Ag2SO4:
Ag2SO4(s) ⇌ 2Ag+(aq) + SO4 2-(aq)
The Ksp expression for this dissociation is:
Ksp = [Ag+]^2[SO4 2-]
We are given that the solution is saturated with Ag2SO4, which means that the concentration of Ag+ is equal to the solubility of Ag2SO4. Therefore, we can substitute the given [Ag+] value into the Ksp expression:
Ksp = (9.7 × 10^-3)^2 [SO4 2-]
To find the value of Ksp, we need to know the concentration of SO4 2-. This can be found using the stoichiometry of the balanced chemical equation:
1 mole of Ag2SO4 ⇌ 1 mole of SO4 2-
Since Ag2SO4 is a strong electrolyte, it completely dissociates into ions, so the initial concentration of Ag2SO4 is equal to the concentration of Ag+ (0.150 M). Therefore, the concentration of SO4 2- is also 0.150 M.
Substituting this value into the Ksp expression, we get:
Ksp = (9.7 × 10^-3)^2 (0.150) = 1.4 × 10^-5
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How many atoms would be in 4.5 moles of Oxygen gas?
7.47 x 10-24 atoms O2
2.71 x 1024 atoms O2
4.5 x 1023 atoms O2
Answers
Answer:
2.70..would be number of moles..2.71×1024 atoms
Rearrange the following equation and solve for x when the hydrogen ion concentration is 0.001 M.
pH= 5 + log x
(Recall that pH=−log[H+].)
Answer choices: x= 10, x= 0.20, x= 3
Answers
To rearrange and solve the equation pH = 5 + log x for x when the hydrogen ion concentration is 0.001 M, first recall that pH = -log[H+].
Since [H+] = 0.001 M, we can find the pH:
pH = -log(0.001) = 3.
Now substitute the pH value back into the equation:
3 = 5 + log x.
Next, isolate the log term by subtracting 5 from both sides:
-2 = log x.
Finally, use the inverse log function to solve for x:
x = 10^(-2) = 0.01.
However, none of the answer choices match this value. Please double-check the information provided and make sure there are no errors in the question or answer choices.
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Naming covalent CH4 + 20. CO₂ + 2H₂O
Answers
Like do u want the name of it?
WILL MARK BRAINLIEST FOR CORRECT ANSWER
Continue reading from Ruby Bridges’s autobiography.
We drove down North Galvez Street to the point where it crosses Alvar. I remember looking out of the car as we pulled up to the Frantz school. There were barricades and people shouting and policemen everywhere. I thought maybe it was Mardi Gras, the carnival that takes place in New Orleans every year. Mardi Gras was always noisy.
As we walked through the crowd, I didn’t see any faces. I guess that’s because I wasn’t very tall and I was surrounded by the marshals. People yelled and threw things. I could see the school building, and it looked bigger and nicer than my old school. When we climbed the high steps to the front door, there were policemen in uniforms at the top. The policemen at the door and the crowd behind us made me think this was an important place.
It must be college, I thought to myself.
–Through My Eyes,
Ruby Bridges
What evidence in the text supports the idea that Bridges did not realize the significance of her first day? Check all that apply.
“I remember looking out of the car as we pulled up to the Frantz school.”
“I thought maybe it was Mardi Gras.”
“As we walked through the crowd, I didn’t see any faces.”
“[The school] looked bigger and nicer than my old school.”
“The crowd behind us made me think this was an important place.”
“It must be college, I thought to myself.”
Answers
Answer: I remember looking out of the car as we pulled up to the Frantz school.”
“I thought maybe it was Mardi Gras.”
“As we walked through the crowd, I didn’t see any faces.”
“[The school] looked bigger and nicer than my old school.”
“The crowd behind us made me think this was an important place.”
“It must be college, I thought to myself.
Explanation:
“I thought maybe it was Mardi Gras.”
“[The school] looked bigger and nicer than my old school.”
“It must be college, I thought to myself.”
Describe the process of nuclear fusion. How do main sequence stars, red giants and red supergiants differ in their process of making energy
Answers
In main-sequence stars, nuclear fusion reactions take place in the core, where hydrogen atoms are fused to form helium. This process is known as the proton-proton chain reaction.
The energy released by this reaction is sufficient to balance the gravitational force that is trying to collapse the star. This process continues until the hydrogen in the core is exhausted, and the star enters the next phase of its life.
Red giants and red supergiants differ in their process of making energy. In red giants, nuclear fusion reactions take place in the outer layers of the star, where helium atoms are fused to form carbon. This process is known as the triple-alpha process. The energy released by this reaction is not sufficient to balance the gravitational force that is trying to collapse the star. The star expands and cools.
In red supergiants, nuclear fusion reactions take place in the core, where heavier elements are fused to form even heavier elements. This process releases much more energy than the proton-proton chain reaction or the triple-alpha process. This energy is not sufficient to balance the gravitational force that is trying
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PLZ HELP, NO MESSING AROUND, WILL GIVE BRAINLIEST!
Answers
Covalent bond is a type of chemical bond which is due to the sharing an electron from each and every atom that is participating in the bond.
Ionic Bond:Ionic bond is a type of bond which is formed due to the complete donation of an electron from one atom to another.
Ionic bond is formed between metals and non-metals. The group which provide the Metal are IA and IIA i.e. S block elements. The group which mostly provide non-metal is VII A i.e. halogens. The Metals give up their ONLY Valance shell electron which is accepted by the Non-metal. This results in formation of ions, The Metals gets the positive charge thus called cation and The non-metal gets a negative charge thus called anion. These Positive and Negative ion attract each other resulting in the formation of IONIC BOND.
_____________________________________The Ionic bond is formed between The metal and non metal because, the metals have low ionization energy due to which the valence shell is ejected out easily, and The Non-Metals have high electron affinity which means that they attract an electron with greater force because they need one electron to complete their octet. As the non metal has high electron affinity and metal have low electron affinity thus the electronegativity difference between the non metal and metal is more than 2 thus they make ionic bond.
_____________________________________Rule of Electronegativity:Electronegativity is the tendency of an atom to attract shared pair of electron. If there is electronegativity difference between the two atom more than 2 then it makes IONIC BOND. If the electronegativity difference is less than 2, it makes COVALENT BOND.
_____________________________________Question:The question says, the KCl has ionic bond but HCl has covalent bond, why?
Answer:Answer is that KCl has electronegativity difference between K and Cl atom more than 2 thus it forms ionic bond. H and Cl has electronegativity difference of less than 2 thus it makes Covalent Bond. K donates its valence electron completely to the Chlorine atom because chlorine has much more electronegativity than potassium(K). H shares an electron with chlorine, it is not completely donated. H has pair of electron for sometime and chlorine has pair of electron for sometime, It is because the Chlorine and Hydrogen has less difference of electronegativity so they attract with almost same electronegativity.
_____________________________________Best Regards,'Borz'a fluorinated organic gas in a cylinder is compressed from an initial volume of 940 ml at 156 pa to 402 ml at the same temperature. what is the final pressure?
Answers
The final pressure of the fluorinated organic gas in the cylinder is 363.7 kPa.
To solve this problem, we can use the ideal gas law, which states that
PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature in Kelvin.
Since the gas in the cylinder is fluorinated organic gas, we can assume that it behaves as an ideal gas.
First, we need to convert the volume and pressure to SI units, so we have
V1 = 0.94 L, P1 = 156 kPa, and V2 = 0.402 L.
We can also assume that the temperature remains constant, so T1 = T2.
Using the ideal gas law, we can write:
P1V1 = nRT1 and P2V2 = nRT2
Since T1 = T2, we can write:
P1V1/P2V2 = nR/nR = 1
Solving for P2, we get:
P2 = P1V1/V2 = 156 kPa x 0.94 L / 0.402 L = 363.7 kPa
In summary, we can use the ideal gas law to calculate the final pressure of a compressed fluorinated organic gas in a cylinder when the initial volume and pressure are given. It is important to convert the units to SI units and assume that the temperature remains constant.
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The Earth has been through many periods of warming and cooling in the past.
Identify what these periods known as. Propose what you would expect the climate on Earth to be like during a warming event and a cooling event.
Answers
The periods of warming and cooling that the Earth has been through in the past are known as climate cycles or glacial-interglacial cycles.
During a warming event, we would expect the climate on Earth to be generally warmer, with a higher concentration of greenhouse gases in the atmosphere and higher sea levels due to melting ice caps. This could lead to more extreme weather patterns, including more frequent and intense heatwaves, droughts, and hurricanes.
During a cooling event, we would expect the climate on Earth to be generally colder, with lower concentrations of greenhouse gases in the atmosphere and lower sea levels due to expanding ice caps. This could lead to periods of widespread glaciation and colder temperatures, which could have significant impacts on ecosystems and human populations.
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What amino acid sequence will be created during translation?
Answers
The amino acid sequence will be determined by the codons in the mRNA sequence that is being translated.
During translation, the mRNA sequence is read three nucleotides at a time, and each codon is translated into an amino acid based on the genetic code. This process is known as the "triplet code" because codons are made of three nucleotides.
The ribosome reads the mRNA sequence and translates it into a protein by recruiting amino acids in the correct order. The tRNA molecules carry the correct amino acids to the ribosome, where they are added to the growing polypeptide chain.
The ribosome continues to read the mRNA sequence until it reaches a stop codon, which signals the end of the translation and the completion of the amino acid sequence.
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Why can't a cell stop normal processes during interphase
Answers
H2-2 magnetization according to molecular orbital theory
Answers
Answer:
The two such half field atomic orbitals compbine to from a molecular orbital which contains both these electrons. But helium (Z=2) has already a filled orbital (1s2). Therefore, the atomic orbitals of the helium atoms donot combine. Thus, a molecule of H2 exists while that of He2 does not.
For a particular reaction, δh=−111.4 kj/mol and δs=−25.0 j/(mol·k).
required:
a. calculate δg for this reaction at 298 k. (in kj).
b. what can be said about the spontaneity of the reaction at 298 k?
Answers
The Gibbs free energy change (ΔG) for a reaction can be calculated using the equation ΔG = ΔH - TΔS, where ΔH is the enthalpy change, T is the temperature in Kelvin, and ΔS is the entropy change.
Given ΔH = -111.4 kJ/mol, ΔS = -25.0 J/(mol·K), and T = 298 K, we need to convert the entropy change to kJ/mol·K.
To convert ΔS to kJ/mol·K, we divide it by 1000:
ΔS = -25.0 J/(mol·K) / 1000 = -0.025 kJ/(mol·K)
Now we can calculate ΔG:
ΔG = ΔH - TΔS
ΔG = -111.4 kJ/mol - (298 K * -0.025 kJ/(mol·K))
ΔG = -111.4 kJ/mol + 7.45 kJ/mol
ΔG = -103.95 kJ/mol
Therefore, the value of ΔG for this reaction at 298 K is approximately -103.95 kJ/mol.
b. The sign of ΔG indicates the spontaneity of a reaction. If ΔG is negative, the reaction is spontaneous, meaning it can occur without any external intervention. If ΔG is positive, the reaction is non-spontaneous, and if ΔG is zero, the reaction is at equilibrium. In this case, since ΔG is negative (-103.95 kJ/mol), the reaction is spontaneous at 298 K. The negative value indicates that the reaction proceeds in the forward direction, releasing energy. The magnitude of ΔG indicates the extent of spontaneity, with larger negative values indicating a more spontaneous reaction.
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The mass of the sun is approximately 1,990,000,000,000,000,000,000,000,000,000,000 grams
Mass of a proton in scientific notation.
Answers
The mass of a proton is expressed in scientific notation as 1.67 x 10⁻²⁴ grams.
This notation makes it simpler to express very small or very large numbers since it represents a value that is stated as a number multiplied by a power of 10.
What is a Proton?The nucleus of an atom contains the subatomic particle known as a proton.Together with neutrons, it has a positive charge and forms the nucleus of an atom, which establishes the atomic number and subsequently the element.In scientific notation, the mass of a proton is roughly 1.67 x 10-24 grams, and it is frequently written in kilograms or atomic mass units (amu) (kg). The mass of a proton is substantially more than that of the electrons that orbit the nucleus, despite the proton's relatively modest size.The makeup of atoms and the characteristics of elements depend heavily on protons.The chemical characteristics of an element and its reactivity are determined by their electromagnetic interactions with electrons.To learn more about proton from the given link :-
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What is the charge on an atom with an equal number of protons and electrons?
Answers
Answer:
There is no charge
Explanation:
When you have an equal number of protons(+) and electrons(-), there is no charge because they cancel each other out.
7 pro (+) & 7 elec. (-), if there are more than each other like 8 pro and 7 elec., then it would have a charge of +1.
There is zero charge on an atom with an equal number of protons and electrons.
What is an atom?
An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.
The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.
Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.
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Elements and compounds are usually more dense in their solid than in their
liquid state. However, water is one of the notable exceptions. The density
of ice is 0.917 g/mL, while the density of liquid water is 1.00 g/mL. What
natural phenomena does this explain?
Answers
Explanation:
The molecules in water is more tightly packed than in ice, so water has greater density than ice.
What can we deduce from the list of ingredients of a product on a container or it’s packaging
Answers
Answer:
The English and French versions of the list of ingredients must begin on a separate line, except, for small packages with an available display surface (ADS) of less than 100 cm 2, where the second language version of the list of ingredients may start after the end of the first language list [B.01.008.2(9), FDR].
Explanation:
Can someone help me here please i need this :(
Answers
Write structural formulas for the following compounds:a. Ethyl isopropyl etherb. Divinyl etherc. cis-2,3-epoxyhexaned. di-n-butyl ethere. allyl methyl etherf. (2R, 3S)-2-methoxy-3-pentanolg. 2-ethoxyoctaneh. Cyclohexene oxidei. trans-2,3-dimethyloxirane
Answers
The structural formulas for the following compounds are:
a. Ethyl isopropyl ether: CH₃CH₂OCH(CH₃)CH₃
b. Divinyl ether: CH₂=CH-O-CH=CH₂
c. cis-2,3-epoxy hexane: CH₃CH(CH₂CH₂CH₂)CHCH₂O
d. di-n-butyl ether: CH₃(CH₂)₃O(CH₂)₃CH₃
e. allyl methyl ether: CH₂=CHCH₂OCH₃
f. (2R, 3S)-2-methoxy-3-pentanol: CH₃-CH(OH)-CH(CH₃)-CH₂-O-CH₃
g. 2-ethoxy octane: CH₃(CH₂)₆OCH₂CH₃
h. Cyclohexene oxide: C₆H₁₀O
i. trans-2,3-dimethyl oxirane: CH₃CH(OCH₃)CH(CH₃)O
Let us discuss some structures in detail.
c. cis-2,3-epoxy hexane:
```
CH3-CH2-CH2
| /
CH2
```
h. Cyclohexene oxide:
```
O
/ \
/ \
- -
\ /
\ /
-
```
i. trans-2,3-dimethyl oxirane:
```
CH3₃
|
CH2-O-CH2
|
CH3
```
Remember that these structural formulas represent the arrangement of atoms in the molecules.
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Q-3 Determine the fugacity in atm for pure ethane at 310 K and 20.4 atm and change in the chemical potential between this state and a second state od ethane where temperature is constant but pressure is 24 atm.
Answers
The fugacity in atm for pure ethane at 310 K and 20.4 atm is given by the equation: f = 20.4 exp (-Δg1/RT). The change in chemical potential between this state and a second state of ethane where the temperature is constant but the pressure is 24 atm is -0.0911RT.
Fugacity is a measure of the escaping tendency of a component in a mixture, which is defined as the pressure that the component would have if it obeyed ideal gas laws. It is used as a correction factor in the calculation of equilibrium constants and thermodynamic properties such as chemical potential. Here we need to determine the fugacity in atm for pure ethane at 310 K and 20.4 atm and the change in the chemical potential between this state and a second state of ethane where the temperature is constant but the pressure is 24 atm. So, using the formula of fugacity: f = P.exp(Δu/RT) Where P is the pressure of the system, R is the gas constant, T is the temperature of the system, Δu is the change in chemical potential of the system. Δu = RT ln (f / P)The chemical potential at the initial state can be calculated using the ideal gas equation as: PV = nRT
=> P
= nRT/V
=> 20.4 atm
= nRT/V
=> n/V
= 20.4/RT The chemical potential of the system at the initial state is:
Δu1 = RT ln (f/P)
= RT ln (f/20.4) Also, we know that for a pure substance,
Δu = Δg. So,
Δg1 = Δu1 The change in pressure is 24 atm – 20.4 atm
= 3.6 atm At the second state, the pressure is 24 atm.
Using the ideal gas equation, n/V = 24/RT The chemical potential of the system at the second state is: Δu2 = RT ln (f/24) = RT ln (f/24) The change in chemical potential is Δu2 – Δu1 The change in chemical potential is
Δu2 – Δu1 = RT ln (f/24) – RT ln (f/20.4)
= RT ln [(f/24)/(f/20.4)]
= RT ln (20.4/24)
= - 0.0911 RT Therefore, the fugacity in atm for pure ethane at 310 K and 20.4 atm is:
f = P.exp(Δu/RT)
=> f
= 20.4 exp (-Δu1/RT)
=> f
= 20.4 exp (-Δg1/RT) And, the change in the chemical potential between this state and a second state of ethane where the temperature is constant but pressure is 24 atm is -0.0911RT. Therefore, the fugacity in atm for pure ethane at 310 K and 20.4 atm is given by the equation: f = 20.4 exp (-Δg1/RT). The change in chemical potential between this state and a second state of ethane where the temperature is constant but the pressure is 24 atm is -0.0911RT.
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GEN CHEM2 PLEASE HELP
Answers
The concentration of the hydronium ion, [H₃O⁺] of 0.28 M calcium hydroxide, Ca(OH)₂ solution is 1.8×10⁻¹⁴ M (option A)
How do i determine the value of [H₃O⁺]?First, we shall determine the [OH⁻] of the solution. Details below:
Ca(OH)₂(aq) <=> Ca²⁺(aq) + 2OH⁻(aq)
From the above equation,
1 mole of Ca(OH)₂ is contains 2 mole ofOH⁻
Therefore,
0.28 M Ca(OH)₂ will contain = 0.28 × 2 = 0.56 M OH⁻
Finally, we shall determine the hydronium, ion [H₃O⁺] of the solution. Details below:
Concentration of hydroxide ion, [OH⁻] = 0.56 MConcentration of hydronium, ion [H₃O⁺] = ?[H₃O⁺] × [OH⁻] = 10¯¹⁴
[H₃O⁺] × 0.56 = 10¯¹⁴
Divide both side by 0.56
[H₃O⁺] = 10¯¹⁴ / 0.56
[H₃O⁺] = 1.8×10⁻¹⁴ M
Thus, hydronium, ion [H₃O⁺] of the solution is 1.8×10⁻¹⁴ M (option A)
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fluorine gas and water vapor react to form hydrogen fluoride gas and oxygen. what volume of hydrogen fluoride would be produced by this reaction if 1.39 ml of fluorine were consumed?
Answers
The volume of hydrogen fluoride would be produced by this reaction if 1.39 ml of fluorine were consumed is 27.791 m/l. in moles/liter.
The further calculation to find the volume of hydrogen fluoride produced by this reaction if 1.39 ml of fluorine were consumed is in steps:2F2(g) + 2H2O(g) --->4HF(g)+O2 (g) is the balanced equationAssuming STP (general temperature and pressure) we recognize that 1 mole of and concept gas =22.four liters1.39m/l x F2 x 1L / 1000 cm ^ 3 x 1mol / 22.4 L = 6.2053 moles of F2.moles HF produced =6.2035 moles F2 x 4 molesVolume of HF produced = HF/2 moles of F2 12.407 x 22.4 L= 27.791 m/l.Done any other manner with out the usage of moles considering that it's miles at STP the final volume is 27.791 m/l.Read more about the voulme:
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Are the following chemical equations reversible or irreversible?
2H2O ←→ H3O+ + OH-
HA + H2O ←→ A- + H3O+
HA + H2O → A- + H3O+
MOH → M+ + OH-
Answers
The first two chemical equations are reversible while the other two are irreversible.
What are chemical equations?Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.
A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .
The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.
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Why is the atomic radius trend related to the electronegativity trend?
Answers
Here is the Answer I Hope this Helps:-
The closer the electrons are to the nucleus, the more tightly they are bound, thus increasing the electronegativity of the atom.
figure 2. the concentration of nad (top) and lactic acid (bottom) in the blood of a representative treated individual (a) describe the pattern of inheritance that is most likely associated with a mutation in the mt -nd5 gene. explain why individuals are not typically heterozygous with respect to mitochondrial genes.
Answers
The pattern of inheritance most likely associated with a mutation in the mt-ND5 gene is maternal inheritance. This is because mitochondrial genes, including mt-ND5, are inherited exclusively from the mother.
The concentration of NAD (top) and lactic acid (bottom) in the blood of a representative treated individual can vary, but an mt-ND5 mutation may lead to abnormal concentrations due to its impact on cellular respiration. Individuals are not typically heterozygous with respect to mitochondrial genes because there is only one type of mitochondria in each cell, which comes from the mother.
This results in a homoplasmic condition, where all mitochondrial genes are identical, unlike nuclear genes where heterozygous conditions can occur due to contributions from both parents.
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Which one of the following statements about s orbitals is incorrect ?
Group of answer choices
Answers
You are heating a solution in the laboratory. As the solution heats up, it begins to bubble. After turning off the heat, you notice that the remaining liquid remains colorless, but you smell a sharp odor. Why might you think a chemical reaction has occurred? O A. there is no change of state so there wasn't a reaction B. a smell is produced O c. heating released bubbles O D. there is no color change so there wasn't a reaction
Answers
A chemical reaction might have occurred because of the smell produced. Option B.
Odor production as a sign of chemical reactionThe production of a sharp odor is a good indicator that a chemical reaction has occurred. A chemical reaction often involves the formation of new compounds with different properties from the original compounds. These new compounds may have different odor characteristics.
The lack of a change of state or color change does not necessarily rule out the possibility of a chemical reaction, as not all chemical reactions result in observable changes in these properties.
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A solution conducted an electrical current poorly and turned blue litmus paper red. This solution could be:
Answers
The solution could be an acid. Acids conduct electrical current poorly and turn blue litmus paper red due to their ability to donate protons (H+) to the litmus paper, causing a change in color.
Acids have a pH less than 7 and are known for their sour taste and corrosive properties. They typically contain hydrogen ions (H+) and have a higher concentration of positive ions, making them inefficient conductors of electricity compared to bases or salts. The reaction between the acid and the litmus paper indicates the presence of hydrogen ions, which leads to the color change. Examples of acids include hydrochloric acid (HCl) and sulfuric acid (H2SO4). turn blue litmus paper red due to their ability to donate protons (H+) to the litmus paper, causing a change in color.
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