what is another name for relative abudance?
Percent Composition
Mass
Weight
Answers
The another name for relative abundance is Percent Composition
So, option A is correct
The relative abundances of all the stable isotopes of an element always add up to 100% since relative abundances are typically reported as percentages. A weighted average of these numbers determines the average atomic mass of an element.
The fraction of an isotope that is present on earth is quantified as its percentage abundance. It provides the amount of that specific isotope. The fraction of an isotope species in relation to all other elements in nature is known as relative abundance.
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Related Questions
The standard enthalpy of formation of Cl(g) is +242 kJ/mol.
What is the dissociation energy of a Cl-Cl bond?
A) +242 kJ/mol
B) -242 kJ/mol
C) +484 kJ/mol
D) +121 kJ/mol
E) -121 kJ/mol
Answers
The dissociation energy of a Cl-Cl bond is +484 kJ/mol.
The correct option is C.
What is the standard enthalpy of the formation of a substance?The standard enthalpy of formation of a substance is the enthalpy change that takes place when 1 mole of the substance is created from its component elements in their standard states.
The standard enthalpy of the formation of Cl(g) is +242 kJ/mol.
The Cl-Cl bond contains two atoms of Cl(g)
The dissociation energy of a Cl-Cl bond will be twice the standard enthalpy of the formation of Cl(g).
The dissociation energy of a Cl-Cl bond = 2 * (+242) kJ/mol.
The dissociation energy of a Cl-Cl bond = +484 kJ/mol
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What is the mass in grams of 5.90 mol CH?
O A 0.0152 g
B. 19.49
O C.389 9
0.695 g
E. 695 g
Answers
Answer:
E
Explanation:
colonel flanders makes boxes of chicken with various numbers of pieces. He charges $ 0.40 for each piece of chicken, plus a fixed charge of $ 0.55 for the box, the rolls, etc. If Iddy Ottic bought the $6.95 box, how many piecesof chicken should the box contain?
Answers
Subtract 0.55 from 6.95 and you get 6.40
The divide 6.40 by 0.40 and you get 16
2(t. A gas sample is held at constant pressure. The gas occupies 3.62 L of volume when the temperature is 21.6"C. Determine thetemperature at which the volume of the gas is 3.45 L.a) 309 K b) 281 K e) 20,6 K d) 294 K e) 326 K
Answers
They tell us that the pressure of the gas is constant and the temperature and volume vary. If we assume that the gas behaves like an ideal gas, we can apply Charles's law, which tells us:
\(\frac{V_1}{T_1}=\frac{V_2}{T_2}\)where,
V1 is the initial volume, 3.62L
T1 is the initial temperature, 21.6°C=294.75K
V2 is the final volume, 3.45L
T2 is the final temperature, in Kelvin
Now, we clear T2 and replace the known data:
\(T_2=V_2\times\frac{T_1}{V_1}\)\(T_2=3.45L\times\frac{294.75K}{3.62L}=281K\)The temperature at which the volume of the gas is 3.45 L will be 281K
Answer. b) 281K
Given the balanced equation: 2 C₄H₁₀ + 13 O₂ ➞ 8 CO₂ + 10 H₂O, what is the mole to mole ratio of CO₂ to O₂ ? *
4 points
13/2
8/10
13/8
8/13
Answers
Answer:
8/ 13
Explanation:
.................................
Logistic Growth versus
Exponential Growth
Missouri Ponds
Largemouth bass are predators found in many
Missouri ponds. This species grows quickly, is
aggressive, and is well-suited for many pond
environments, where reproduction is facilitated.
Largemouth bass eat a variety of foods, including fish,
insects, frogs, and crayfish. Additionally, they have been
known to eat mice, moles, snakes, leeches, and baby
ducklings. When there is sufficient food, they generally
grow quickly. Largemouth bass can live for up to 15
years, but generally live for between 6 to 10 years.
What would happen to
the largemouth bass
population if there was a
drastic decline in the
populations of ducks and
leeches?
A. The largemouth bass population
would completely disappear from
the lake.
B. As they are not primary food
sources and at the top of the food
chain, the impact would be minimal.
C. The largemouth bass population
would rapidly increase.
Answers
The largemouth bass if there was a drastic decline in the populations of ducks and leeches as they are not primary food sources and at the top of the food chain, the impact would be minimal
The largemouth bass is a carnivorous freshwater gamefish in the Centrarchidae family and a species of black bass native to the eastern and central united states and southeastern Canada and northern Mexico but widely introduced elsewhere that's why the largemouth bass eat a variety of foods, including fish, insects, frogs, and crayfish and eat mice, moles, snakes, leeches, and baby ducklings so when drastic decline in the populations of ducks and leeches so no its not because they are not primary food sources and at the top of the food chain, the impact would be minimal
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me of an Irregular Solid
Use the image to determine the volume of the rock.
Initial volume:
mL
Final volume:
Volume of rock: 20
mL
cm³
Answers
The volume of the irregular solid from the image that have been shown is 12 mL
How do you determine the volume of an irregular solid?To obtain the volume of the irregular solid;
a. Measure the initial volume of water in the cylinder.
b. Carefully lower the irregular solid into the water, ensuring it is fully submerged without trapping any air bubbles.
c. Record the new volume of water in the cylinder.
d. The volume of the irregular solid is equal to the difference between the final and initial water volumes.
The volume is;
32 mL - 20 mL = 12 mL
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How is iodine 131 similar to a normal atom of iodine?
Answers
Answer: Iodine 131 is a radioisotope with a very short half-life of 8.02 days, making it highly radioactive.
Explanation:
i need help this is due tomorrow if you get it right I give brainiest
Answers
Which of the following have the empirical formula CHO?
Proteins
None of these
Nucleic Acids
Lipids
Answers
Out of the given options, none of the following have the empirical formula CHO.
The empirical formula is the simplest formula for a compound that reflects the ratio of elements present in the compound. It gives the ratio of atoms of different elements in the compound. The empirical formula can be different from the molecular formula.
Lipids are the biomolecules that are composed of carbon, hydrogen, and oxygen (CHO) in a different ratio. They are the esters of fatty acids and glycerol. They are also known as fats or oils. They are the major component of cell membranes. Lipids include fats, phospholipids, and steroids.
Nucleic acids are macromolecules composed of nucleotide units. Nucleotide units consist of a nitrogenous base, a sugar, and a phosphate group. They are the building blocks of DNA and RNA. The empirical formula of nucleic acids is C5H4O2N3P. They contain nitrogen, phosphorus, carbon, oxygen, and hydrogen. They do not have the empirical formula CHO.
Proteins are macromolecules composed of amino acids. They have a complex structure. Proteins are composed of carbon, hydrogen, oxygen, and nitrogen. Some proteins also contain sulfur and phosphorus. Therefore, they do not have the empirical formula CHO. Thus, out of the given options, none of the following have the empirical formula CHO.
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How many valence electrons does it have?
pls answer thank you
Answers
Answer:
One.
Explanation:
this is the structure of lithium which has valency 1 .Valency means no.electrons present in outermost shell or needed electrons to complete octet
what type of chemical bond joins sodium (element 11) and chlorine (element 17)?
Answers
The ionic bond is the type of chemical bond that joins sodium and chlorine.
When sodium and chlorine react, electrons are transferred from the sodium atom to the chlorine atom, resulting in the formation of positively charged sodium ions (Na+) and negatively charged chloride ions (Cl-). These ions are then attracted to each other due to their opposite charges, forming an ionic bond. This bond is relatively strong and requires a significant amount of energy to break. Ionic compounds such as sodium chloride (NaCl) have high melting and boiling points, and are typically crystalline solids at room temperature.
In an ionic bond, electrons are transferred from one atom to another. This results in the formation of positively charged cations and negatively charged anions, which are then attracted to each other by electrostatic forces, forming an ionic compound. In the case of sodium and chlorine, sodium has one valence electron in its outermost shell, while chlorine has seven electrons in its outermost shell. Sodium easily loses its outer electron to achieve a stable octet configuration, while chlorine readily accepts an additional electron to achieve a stable octet. This results in the formation of Na+ and Cl- ions, respectively, which are then attracted to each other due to their opposite charges.
Ionic compounds have a regular, repeating arrangement of ions called a crystal lattice. They typically have high melting and boiling points, as the strong electrostatic attractions between the ions require a lot of energy to overcome. Ionic compounds are generally soluble in polar solvents such as water, but not in nonpolar solvents. They also conduct electricity when dissolved in water or when melted, as the charged ions are free to move and carry electrical charge.
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when was the last time a third-party candidate won any electoral votes?
Answers
The last third-party candidate to win one or more states was George Wallace of the American Independent Party in 1968.
Who was George Wallace?
Born in Clio, Wallace attended the University of Alabama School of Law and served in the United States Army Air Corps during World War II. After the war, he won election to the Alabama House of Representatives and served as a state judge.He first sought the Democratic nomination in the 1958 Alabama gubernatorial election. Initially a moderate on racial issues, Wallace adopted a hardline segregationist stance after losing the 1958 nomination.To know more about George Wallace, click the link given below:
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9.
Look at the following equation. What is the oxidizing agent? 3Mg + N2 ->Mg3N2
Answers
Answer:
In this reaction, nitrogen acts as the oxidizing agent. Mg is a reducing agent.
hold bottles with your hand over the label while pouring.
Answers
The process of holding bottles with your hand over the label while pouring helps in keeping the label from getting wet. The moisture may cause the label to peel off or spoil the contents of the bottle. The practice of holding the bottle over the label also gives the drinker an idea of what is inside the bottle before drinking it.
The process of holding bottles with your hand over the label while pouring helps in keeping the label from getting wet. The moisture may cause the label to peel off or spoil the contents of the bottle. The practice of holding the bottle over the label also gives the drinker an idea of what is inside the bottle before drinking it. By reading the label, one can learn about the ingredients, the amount of alcohol, and the manufacturer of the beverage.
When pouring a drink, it is essential to handle the bottle with care. The bottle should be held steady with one hand, while the other hand is used to pour the contents. One should always pour the drink slowly and steadily to prevent any spillage. In the case of carbonated beverages, it is important to tilt the bottle at an angle to prevent the contents from overflowing.
Moreover, the bottles used for storing and pouring drinks should be of high quality. They should be made of sturdy and durable materials that can withstand the pressure of carbonated beverages. Glass bottles are the best option for storing drinks as they do not absorb the flavor or color of the drink.
In conclusion, holding bottles with your hand over the label while pouring is an important practice that helps preserve the label's quality and prevent spillage. When pouring drinks, it is essential to handle the bottle with care and pour slowly and steadily. High-quality bottles made of glass are the best option for storing drinks.
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What is the specific heat of a substance if a mass of 10.0 kg increases in temperature from 10.0°C to 70.0°C when 2,520 J of heat is applied?
Use q equals m C subscript p Delta T..
Answers
-Heat (q) is 2520
-Delta T (change in temperature) is 70-10 which is 60
-Mass (M) is 10kg
-specific heat (c) is unknown.
2520 = (10)C(60)
Use algebra to solve for C.
Multiply C by 60 and 10.
2520 = 600C
Divide both sides by 600 to get C by itself.
C = 4.2 J/g
Answer:
a
Explanation:
c. Mention the function of corolla.
Answers
Answer:
Overall, the main function of the corolla is to assist in the reproductive process of the plant. The petals of the corolla are designed to aid in pollination, and therefore, increase the chance of successful reproduction of the flower.
to assist in the reproductive process of the plant...
136 grams of barium sulfate is used to make a 2.5 M solution. How many liters of water are needed?
Answers
Answer:
yay well done good job keep going
an ideal gas is taken around the cycle shown in this p-v diagram, from a to b to c and back to a. process b c is isothermal. what can you conclude about the net entropy change of the gas and its environment during the cycle?
Answers
The net entropy change of the gas and its environment during the cycle is zero, as it is a closed cycle.
The net entropy change of the gas and its current circumstance during the cycle displayed in the p-V outline can't be resolved exclusively from the data given. Nonetheless, since process b-c is isothermal, the entropy change of the gas during that interaction is given by Q/T, where Q is the intensity consumed by the gas and T is the outright temperature at which the cycle happens. Since the interaction is isothermal, T is steady, so the entropy change of the gas during b-c is relative to Q. Assuming Q is positive, the entropy change of the gas is positive, implying that the gas ends up being more scattered during that cycle.
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The complete question is:
An ideal gas is taken around the cycle shown in this p-V diagram, from a to btoc Pb and back to a. Process b c is isothermal. What can you conclude about the net entropy change of the gas and its environment during the cycle? a) It is zero. b) It is positive c) It is negative. d) Two of A, B, and C are possible. e) All three of A, B, and C are possible 0 Two point charges and a point P lie at the vertices of an equilateral triangle as shown. Both point charges have the same magnitude q but opposite signs. There is nothing at point P. The net electric field that charges #1 and #2 produce at point P is in a) the ty-direction b) the-y direction c) the +x-direction. d) the-x-direction. ) none of the above. ) Charge #1 -q +q Charge #2 Constants R 8.314 mol K Isochoric Isobaric sothermal Adiabatic Constant Constant Constant No heat volume pressure temperature transfer Cice = 2.00e3 kg c steam2.00e3 kg c for water = 33.Se4 し,for water = 226e5 Na = 6,022e23- (efficiency) (carnot efficiency) On QH molecules .nole (adiabats only) (adiabats only) Nm pyr = constant TV"-1 = constant W71İ(pik-P2V2) (adiabats only) Any other needed constants should be given in the problems Heat and Temperature TKelvin = TCelcius + 273.15 EtotalB Misc Density 1 Dimension Thermal properties of matter Uniform (p+ (V-nb) = nRT NonUniform dm dL For Ideal Gas dm dA Ker = nRT (for degrees of freedom f) dv Valatonn.-5, Ynonatomic = 3 nonconservative forces-ΔΕ AL-Texternalt
If the atomic number of an element is 6 and the atomic mass is 12.01, how many protons are there in the nucleus?
A. 12
B. 6
C. 24
D. 52
Answers
The atomic number of an element represents the number of protons in the nucleus. In this case, the atomic number is 6. Therefore, there are 6 protons in the nucleus of this element. The correct answer is B. 6.
The atomic number of an element represents the number of protons in the nucleus. In this case, the atomic number is 6, which means there are 6 protons in the nucleus. The atomic mass is the sum of the number of protons and neutrons in the nucleus. Since the atomic mass is 12.01 and the atomic number is 6, we can subtract 6 from 12.01 to get the number of neutrons. This gives us a neutron count of approximately 6.01.
Therefore, The answer is B. 6 protons are in the nucleus of this element.
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the compound with the formula, chcl3 was used as an anesthetic in earlier times, but has been found to have some serious side effects. the compound is called
Answers
The compound with the formula CHCl3, also known as chloroform, was used as an anesthetic in earlier times but has been found to have serious side effects such as liver damage and respiratory issues.The compound with the chemical formula CHCl3 is called chloroform. Chloroform was indeed used as an anesthetic in the past due to its sedative properties. However, it has been largely phased out for medical use due to its potential serious side effects. Chloroform is known to be hepatotoxic and nephrotoxic, meaning it can cause damage to the liver and kidneys. It can also cause respiratory depression and may have carcinogenic properties. As a result, its use as an anesthetic has declined, and it is now primarily used as a solvent in some industrial and laboratory applications.
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How are volcanoes formed? *
Answers
Answer:
Volcanoes form when tectonic plates collide and one plate is pushed beneath another.
Explanation:
what forces are happening when a rabbit is jumping
Answers
Answer:
gravity
Explanation:
Answer:
gravity
Explanation:
the common name for 2-butanone, a readily available solvent, is
Answers
Answer:
The common name for 2-butanone is "methyl ethyl ketone" (MEK). MEK is a commonly used solvent due to its ability to dissolve a wide range of substances and its relatively low toxicity.
Explanation:
MEK, or methyl ethyl ketone, has a molecular formula of C4H8O and a structure consisting of a four-carbon chain with a carbonyl group (C=O) attached to the second carbon. It is a volatile liquid with a sweet, pungent odor.
As a solvent, MEK is valued for its ability to dissolve a wide range of substances, including resins, paints, varnishes, adhesives, and coatings. It has good solvency power for many polar and nonpolar compounds, making it versatile for use in different applications. MEK's solvency properties, combined with its relatively low toxicity, make it a popular choice in industries such as automotive, aerospace, printing, and construction.
MEK is known for its fast evaporation rate, which contributes to its effectiveness in processes that require quick drying. It also possesses good drying properties when used in coatings, contributing to efficient film formation.
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2 moles of NO, was placed in an empty I dm' bottle and allowed to reach equilibrium according to the equation:
At equilibrium, 1.2 moles of N,O, dissociated. Calculate the value of the equilibrium constant for the reaction at that
temperature.
Answers
2NO(g) ⇌ N2(g) + O2(g)
According to the problem statement, 2 moles of NO were placed in a 1 dm^3 bottle and allowed to reach equilibrium, and at equilibrium, 1.2 moles of NO had dissociated. This means that the initial concentration of NO was:
[NO]initial = 2 mol / 1 dm^3 = 2 M
And the concentration of NO at equilibrium is:
[NO]equilibrium = (2 - 1.2) mol / 1 dm^3 = 0.8 M
Since the stoichiometry of the balanced equation is 2:1:1 for NO, N2, and O2, respectively, the equilibrium concentrations of N2 and O2 will also be 0.6 M.
The equilibrium constant (Kc) can be calculated using the equilibrium concentrations of the reactants and products, raised to the power of their stoichiometric coefficients. Therefore:
Kc = ([N2][O2]) / ([NO]^2)
Substituting the equilibrium concentrations into the equation, we get:
Kc = (0.6 M x 0.6 M) / (0.8 M x 0.8 M)
Kc = 0.5625
Therefore, the value of the equilibrium constant for the reaction at that temperature is 0.5625. Note that the units of Kc depend on the stoichiometry of the balanced equation. Since the stoichiometric coefficients are all 1, the units of Kc in this case are M^-1
While visiting his uncle's farm, Derek learned that horses and donkeys are two different species. Based on this
information, what can Derek infer about horses and donkeys?
Horses and donkeys cannot survive in the same
environment.
Horses and donkeys produce fertile offspring.
Horses and donkeys are members of the same
population.
Horses and donkeys are members of different
populations.
Answers
While visiting his uncle's farm, Derek learned that horses and donkeys are two different species. Based on this information, Derek can infer that horses and donkeys are members of different populations.
Since horses and donkeys are different species, they belong to different populations. A population refers to a group of individuals of the same species that live in the same area and can interbreed. While horses and donkeys can mate, their offspring, known as mules, are usually infertile.
This means that mules cannot produce offspring of their own, which indicates that horses and donkeys are not members of the same population. In contrast, if they were members of the same population, they would be able to produce fertile offspring. Therefore, Derek can infer that horses and donkeys are members of different populations.
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What is the electronegativity periodic table?
Answers
The electronegativity periodic table is a chart that arranges elements according to their electronegativity, which is a measure of an atom's ability to attract electrons to itself. Electronegativity is a chemical property that reflects the relative tendency of an atom to draw electrons towards itself when it forms a chemical bond with another atom.
The electronegativity values are usually determined using the Pauling scale, which was developed by Linus Pauling and is widely used in chemistry. In this scale, the electronegativity of an element ranges from 0.7 for cesium to 4.0 for fluorine, with increasing electronegativity moving from left to right across a period and increasing as one moves down a group.
The electronegativity values can be useful in understanding chemical bonding and the behavior of molecules. For example, elements with high electronegativity values tend to form ionic bonds, while elements with low electronegativity values tend to form covalent bonds. Additionally, the electronegativity difference between two bonded atoms determines the type of bond, with larger differences indicating polar covalent bonds and smaller differences indicating nonpolar covalent bonds.
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which of the subshells i) 2 d ii) 3 f iii) 5 g iv) 6 i cannot exist in an atom? select all that apply
Answers
Out of all the given subshells it is 2d shell which doesn't have real existence as an atom.
(i) If d-subshell l=2, the values of sof l in the second shell (jn=2) are 0 and 1. Consequently, the third shell cannot contain any d-subshell. As a result, we can conclude that the second subshell does not actually exist as atom.
(ii) In the third shell (n=3), the values of l are 0, 1, and 2 in the case of the f-subshell, where l=3. There is no actual existence of 3f-subhsell because there cannot be any f-subshell in this shell.
(iii) In the fourth shell (n=4), where l=4, the values of l are 0, 1, 2, and 3. There is no actual 4g subshell because there cannot be any g sub shell in this shell.
(iv) The fifth shell (n=5) has l values of 0, 1, 2, 3, and 4, which proves that the d-sub shell is actually present
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How are insects different from arachnids?
A: Insects have a cephalothorax and abdomen.
B : Arachnids have a head, a thorax, and an abdomen.
C :Arachnids lack antennae.
D :Insects lack antennae.
Answers
Arachnids lack antennae. The main differences between insects and arachnids are in their body structure and legs.
What are insects?Both insects and arachnids are multi-legged creatures that tend to elicit fear, and while they have a lot in common, including that fear response, there are some distinct differences between the two.
The main differences between insects and arachnids are in their body structure and legs.
Arachnids have eight legs, whereas insects only have six. Arachnids have simple eyes, whereas insects have compound eyes. Arachnids lack antennae while insects do.
Therefore, Arachnids lack antennae. The main differences between insects and arachnids are in their body structure and legs.
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Can anyone explain and solve
Answers
The theoretical yield of Fe₂O₃ is 0.0059 moles and the percent Yield is 44.2%
How to determine theoretical and percent yield?Using stoichiometry to calculate the theoretical yield of Fe₂O₃:
From the balanced chemical equation, 4 moles of Fe react with 3 moles of O₂ to produce 2 moles of Fe₂O₃. Therefore, set up the following proportion:
3.4 g O₂ / 32 g/mol O₂ = x mol Fe₂O₃ / (2 mol Fe / 4 mol O₂ x 55.85 g/mol Fe)
Solving for x:
x = 3.4/32 x 4/3 x 1/55.85 x 2 = 0.0059 moles Fe₂O₃
Therefore, the theoretical yield of Fe₂O₃ is 0.0059 moles.
From the balanced chemical equation, 4 moles of Fe react with 3 moles of O₂ to produce 2 moles of Fe₂O₃. Therefore, for every 4 moles of Fe that react, expect to produce 2 moles of Fe₂O₃.
Using this information, set up the following proportion:
4 mol Fe / 55.85 g/mol Fe = 0.0059 mol Fe₂O₃ / x
Solving for x:
x = 55.85 x 0.0059 / 4 = 0.082 g Fe
Therefore, the theoretical yield of Fe is 0.082 g.
To calculate the percent yield, use the following formula:
Percent Yield = (Actual Yield / Theoretical Yield) x 100%
Substituting the values calculated:
Percent Yield = (0.0059 mol Fe₂O₃ / 0.082 g Fe) x 100% x (1.5 moles H₂O / 2 moles Fe₂O₃)
Percent Yield = 44.2%
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