Consider these two entries from a fictional table of standard reduction potentials.
X2+ + 2e- => X(s) E=1.85 V
Y2+ + 2e- => Y(s) E=0.39 V
Which pair of species would react under standard conditions?
_X and Y2+
_X2+ and Y
_X2+ and Y2+
_X and Y
Answers
_X2+ and Y2+
Under standard conditions, the species with the higher reduction potential (X2+) will act as the oxidizing agent (gain electrons) while the species with the lower reduction potential (Y2+) will act as the reducing agent (lose electrons). This will result in a spontaneous redox reaction between X2+ and Y2+.
Under standard conditions, the direction of electron flow in a redox reaction is determined by the difference in reduction potentials between the two species involved.
The species with the higher reduction potential will have a greater tendency to gain electrons, while the species with the lower reduction potential will have a greater tendency to lose electrons.
In this case, since X2+ has the higher reduction potential, it will attract electrons from Y2+ and oxidize it. This will result in a spontaneous redox reaction between X2+ and Y2+.
The specific reaction and products will depend on the identity of X and Y, as well as the reaction conditions such as temperature, pressure, and concentration.
In summary, the species with the higher reduction potential acts as the oxidizing agent, while the species with the lower reduction potential acts as the reducing agent in a redox reaction.
The direction of electron flow is determined by the difference in reduction potentials, and the resulting reaction is spontaneous under standard conditions.
To learn more about redox, refer below:
https://brainly.com/question/13978139
#SPJ11
Related Questions
Which two Real gases will devote the least from an ideal gas explain
Answers
The ideal gas equations of state express most real gases at low pressure but do not yield rational results at higher pressures
What is an ideal gas?An ideal gas is defined as a hypothetical gaseous material whose behavior is bold of ideal gas attractive and revolting forces and can be the Presence of electrons large in sulfur dioxide and hence greater van der Waals interplay. Due to greater intermolecular force, this gas has a high boiling point and essential high temperature to behave ideally. Hence sulfur dioxide act as the least ideal gas at low temperatures. It is also good to know that the ideal gas law takes that the gas molecules have negligible. Keeping that in mind, Xe is the largest of the bunch.
So we can conclude that an ideal gas is a theoretical gas controlled by many randomly moving point particles that are not subject to interparticle interactions.
Learn more about ideal gas here: https://brainly.com/question/25290815
#SPJ1
if you start with 55 grams of sodium flouride naf how many grams of magnesium fluride mgf2 will be produced
Answers
Answer:
Mass of MgF₂ formed = 40.5 g
Explanation:
Given data:
Mass of NaF = 55 g
Mass of MgF₂ formed = ?
Solution:
Chemical equation:
2NaF + Mg → MgF₂ + 2Na
Number of moles of NaF:
Number of moles = mass/molar mass
Number of moles = 55 g / 41.98 g/mol
Number of moles = 1.3 mol
now we will compare the moles of sodium fluoride with magnesium fluoride.
NaF : MgF₂
2 : 1
1.3 : 1/2×1.3 = 0.65 mol
Mass of magnesium fluoride:
Mass = number of moles × molar mass
Mass = 0.65 mol × 62.3 g/mol
Mass = 40.5 g
4. What is a homogeneous solution? Give an example.
Answers
Answer:
Homogeneous solutions are solutions with uniform composition and properties throughout the solution.
Explanation:
For example a cup of coffee, perfume, cough syrup, a solution of salt or sugar in water, etc. Heterogeneous solutions are solutions with non-uniform composition and properties throughout the solution.
Answer:
A homogeneous mixture is a mixture in which the composition is uniform throughout the mixture. Example: The salt water is homogeneous because the dissolved salt is evenly distributed throughout the entire salt water sample. Another examples are wine, blood, vinegar
Explanation:
If a car travels 800m in 40 seconds how fats is it going? Someone HELP
Answers
Answer:
20m/s
Explanation:
If it goes 800m in 40 seconds we can divide the 800 by 40 to see how far it goes in 1 second.
800 / 40 = 20
So, the car is going 20m/s
Hope this helps, have a nice day! :D
Convert 11 degrees Fahrenheit into degrees Celsius and then into kelvin. Show your work.
Answers
Celsius: -11.7
Kelvin: 261.5
Hope it helps! Please mark Brainliest! :)
Bloc ate 1 craft craft had 3 crafts. How much crafts are there?
Answers
what is emission spectrum and absorption spectrum?
Answers
- Absorption spectrum is a technique used to find out what makes up a sample of a substance – in other words, a chemical analysis.
Answer:
When matter interact with EMR then spectrum is obtained. We can understand both spectra using Bohr's hydrogen spectrum. let's have a look on Bohr's hydrogen spectrum what does it say. It says when a electron gains energy it moves from one energy level to other(lower to higher) which is Absorption phenomenon. When the electrons returns from excited state to ground state they emits several spectral lines. this spectrum is called as emission spectrum. inshort the
Emission spectrum is spectrum of electromagnetic radiations that were emitted from the higher energy state(Excited state) to lower energy state(Ground state). and study of emission spectrum is known as AES (Atomic Emission spectroscopy).
When an atom or ion is subjected to EMR, it absorbs certain level of radiations, and when this absorbed energies are studied under spectroscopy they are plotted as absorption spectrum, and study of Absorption spectrum is known as AAS (Atomic Absorption spectroscopy).
Thanks for joining brainly community!
Lab Report
Ocean Currents
It’s time to complete your Lab Report. Save the lab to your computer with the correct unit number, lab name, and your name at the end of the file name (e.g., U2_ Lab_OceanCurrents_Alice_Jones.doc).
What were the independent, dependent, and control variables in your investigation? Describe the variables for each part of the experiment.
Answers
Dependent variables are those that need a stimulus to present themselves. The independent variables are those that do not need a stimulus to present themselves and the control variables are the elements that remain unchanged throughout the experiment.
Importance of variablesThey present the relationship between the elements of the experiment.Allow hypotheses to be tested.Allows comparisons between experimental treatments.They encourage the evaluation of experimental data.To increase the understanding of these variables, we can use as an example an experiment that seeks to evaluate the influence of root growth of transgenic corn with water stress. In this experiment, five plants of transgenic corn will suffer different levels of water stress, while one plant of the same corn will not suffer this stress and will be watered normally.
According to this, root growth is a variable that needs a stimulus to present itself, so this is the dependent variable. Water stress does not need any stimulus, being the independent variable. Finally, the corn plant that will not suffer any type of stress will remain unchanged throughout the experiment, being the control variable.
You didn't show the experiments your question refers to, which prevents me from providing an exact answer, but I hope the information above can help you.
More information about dependent and independent variables at the link:
https://brainly.com/question/967776
Answer:
Dependent variables are those that need a stimulus to present themselves. The independent variables are those that do not need a stimulus to present themselves and the control variables are the elements that remain unchanged throughout the experiment.
Importance of variables
They present the relationship between the elements of the experiment.
Allow hypotheses to be tested.
Allows comparisons between experimental treatments.
They encourage the evaluation of experimental data.
To increase the understanding of these variables, we can use as an example an experiment that seeks to evaluate the influence of root growth of transgenic corn with water stress. In this experiment, five plants of transgenic corn will suffer different levels of water stress, while one plant of the same corn will not suffer this stress and will be watered normally.
According to this, root growth is a variable that needs a stimulus to present itself, so this is the dependent variable. Water stress does not need any stimulus, being the independent variable. Finally, the corn plant that will not suffer any type of stress will remain unchanged throughout the experiment, being the control variable.
You didn't show the experiments your question refers to, which prevents me from providing an exact answer, but I hope the information above can help you.
Explanation:
In which layer of the ocean do surface currents flow?
Answers
Answer:
ooh sorry, but will this help you now:
Ocean dynamics define and describe the motion of water within the oceans. Ocean temperature and motion fields can be separated into three distinct layers: mixed (surface) layer, upper ocean (above the thermocline), and deep ocean. Ocean currents are measured in sverdrup (sv), where 1 sv is equivalent to a volume flow rate of 1,000,000 m (35,000,000 cu ft) per second.
Surface currents, which make up only 8% of all water in the ocean, are generally restricted to the upper 4…
Explanation:
Hope this helps :)
At the UNAM's Science Faculty, the probability that a student who is admitted for studies takes Chemistry AND Geology is 0.08. The probability that a student takes Geology is 0.45. Let C denote the event: student chooses Chemistry; and let G denote the event: student chooses Geology. What is the probability that a student will choose Chemistry given that the student is taking Geology? 2. An X-ray test is used to detect a certain disease that is common in 3% of the population. The test has the following error rates: 7% of people who are disease-free do get a positive reaction and 2% of the people who have the disease do get a negative reaction from the test. A large number of people are screened at random using the test, and those with a positive reaction are further examined. What is the probability that a person tested at random indeed has the disease given that the test result shows positive?
Answers
P(C|G) = P(C and G) / P(G)
Given that the probability of a student taking Chemistry AND Geology is 0.08 (P(C and G) = 0.08) and the probability of a student taking Geology is 0.45 (P(G) = 0.45), we can substitute these values into the formula:
P(C|G) = 0.08 / 0.45 ≈ 0.1778
Therefore, the probability that a student will choose Chemistry given that the student is taking Geology is approximately 0.1778, or 17.78%.
To find the probability that a person tested at random indeed has the disease given that the test result shows positive, we can use Bayes' theorem:P(Disease|Positive) = (P(Positive|Disease) * P(Disease)) / P(Positive)
Given that the disease is common in 3% of the population (P(Disease) = 0.03), the error rate for people who are disease-free getting a positive reaction is 7% (P(Positive|Disease-free) = 0.07), and the error rate for people who have the disease getting a negative reaction is 2% (P(Negative|Disease) = 0.02), we can calculate the probability of a positive result (P(Positive)) as follows:
P(Positive) = (P(Positive|Disease) * P(Disease)) + (P(Positive|Disease-free) * P(Disease-free))
= (0.98 * 0.03) + (0.07 * 0.97)
≈ 0.0294 + 0.0679
≈ 0.0973
Now, we can substitute these values into Bayes' theorem:
P(Disease|Positive) = (0.98 * 0.03) / 0.0973
≈ 0.0294 / 0.0973
≈ 0.3026
Therefore, the probability that a person tested at random indeed has the disease given that the test result shows positive is approximately 0.3026, or 30.26%.
Learn more about Probability
brainly.com/question/31828911
#SPJ11
for making sanitary fittings 4. The harmful effects associated with plastic disposal can be countered by recycling and reducing the usage of plastics.
Answers
Indiscriminate disposal of plastic can damage environmental sanitation. This is because waste that is disposed of carelessly can contaminate the water to become dirty and undrinkable.
Plastic is a waste that is difficult to recycle. Even plastic cannot be decomposed for millions of years. If disposed of carelessly, it can have an impact on the surrounding environment. For example, in water areas, the waste that is disposed of can disrupt the ecosystem in the waters. Such as destroying coral reefs and damaging the digestion of aquatic animals that eat them. Garbage that accumulates on land also causes environmental pollution, especially the soil. So that the fertile land can no longer be cultivated. To prevent more and more waste, we can do it by recycling or reducing the use of plastic.
Learn more about plastic as hazard environment:
https://brainly.in/question/24342995
#SPJ11
Which of the following is not a gas in the Earth's atmosphere? A. oxygen B. carbon dioxide C. sulfur D.nitrogen 1
Answers
The leaves of African violets develop roots and form new
plants when they are placed in water or moist soil. Any leaf
'on the African violet plant shown can produce a new
African violet plant.
Which two terms best describe this kind of reproduction?
O A. Sexual reproduction
B. Vascular reproduction
O O O O
C. Vegetative reproduction
D. Asexual reproduction
Help pls
Answers
Answer:
vegetative reproduction and asexual reproduction
Explanation:
Answer:
Asexual and vegetation reproduction
Explanation:
What is DNA fingerprinting?
FORENSICS
Answers
Answer:
It is a method used to identify a suspect.
Explanation:
DNA fingerprinting is a method used to identify an individual from a sample of DNA by looking at unique patterns in their DNA.
From the list below, which item is not part of beta decay?
OA. The nucleus of the atom is unstable.
B. An atom has many more electrons than protons.
C. A neutron turns into a proton.
D. An electron is ejected from the nucleus
Answers
Answer:
C
Explanation:
When Beta decay happens, the atomic number of an element goes up, and that means there is an extra proton. A is not the answer because unstable atoms cause decay. B is also not correct because this is what happens in Beta decay: a neutron becomes a proton. D is not correct because an electron is actually emitted from the nucleus.
Answer:
The correct answer is B. An atom has many fewer protons than neutrons.
I just took the test.
Explanation:
What is the density of a substance that mass of 13.4 g and a volume of 3.1 mL. (D=m/v)
Answers
Answer:
The answer is 269.85 lb/cu ft
if a grating with more lines per unit length were used, how would the observed angles or spread of the spectra be affected?
Answers
Grating with more lines per unit length is given by, (a + b) sin (theta n)=n ( lambda), where, a + b is grating element, the distance between two consecutive slits, n is order of principal maxima and Lambda is wavelength of light.
Consider the first order maximum on either side of central maximum. For first order n=1. Therefore ,
sin(theta 1)=(lambda)/(a + b).
If we increase the number of lines of grating, correspondingly the grating element (a + b) decreases , hence diffraction angle becomes large for given wavelength . But, then there is limit on number of lines, because sin(theta) should not become greater than 1. However, within reasonable limit on number we can get better resolution that is more angular separation of spectral lines by increasing lines of the plane diffraction grating.
To learn more about Diffraction Grating please visit:
https://brainly.com/question/13902808
#SPJ4
You are conducting an experiment in science class. You fill Beaker 1 with 75 mL of water. You fill beaker 2 with 25 mL of water. They both are at the same temperature.
Which one has more thermal energy and why?
Answers
The Beaker of water that has more thermal energy is Beaker 1.
How to find the beaker with more thermal energy ?The total energy of all the particles is known as thermal energy. This implies that larger objects with slower-moving particles and lower temperatures can have more energy than smaller ones with higher temperatures (faster moving particles).
The amount of material in a sample of matter is measured by mass, hence the thermal energy is a function of the measured object's mass and temperature. An object's mass determines how many particles it contains and how much thermal energy it has at a given temperature.
For this reason, Beaker 1 which had more water, will have more thermal energy.
Find out more on thermal energy at https://brainly.com/question/7541718
#SPJ1
In the painting : Let My People Go by Aaron Douglas
What type of palette did the artist use in the painting? (analogous, limited, open, monochromatic)
What types of colors are used in the work of art? (full-intensity, low-key (shades), or high-key (tints))
Where is the light source in the work of art? Where are the shadows located in your work of art?
Did the artist use asymmetrical, symmetrical, or radial balance?
What is emphasized in the work of art?
What is the size of the objects or figures in the work of art? (normal (life-size), small, colossal)
Answers
Aaron Douglas was a prominent figure of the Harlem Renaissance, a cultural movement that emerged in the 1920s and 1930s.
Who is Aaron Douglas?Based on his style, it is likely that Douglas used a limited palette in his painting Let My People Go. He often used a muted color scheme, with earthy tones and blues, greens, and purples.
Douglas typically used high-key colors in his paintings, which means that he used bright, saturated colors that create a sense of energy and vitality. He also used low-key colors to create contrast and depth.
The light source in Douglas' paintings is often not clearly defined, as he tended to flatten the picture plane and eliminate shadows. When shadows are present, they are often stylized and simplified.
In terms of balance, Douglas often used symmetrical and asymmetrical compositions in his paintings. He was also known for using repetition and pattern to create a sense of visual harmony.
In Let My People Go, it is likely that Douglas emphasized the figures and their struggle for freedom. The painting depicts the biblical story of Moses leading the Israelites out of slavery in Egypt, which was a powerful symbol of hope and liberation for African Americans during the Harlem Renaissance.
Finally, the size of objects and figures in Douglas' paintings varied depending on the composition and the message he wanted to convey. He often used large, monumental figures to emphasize their strength and resilience.
Learn more about Aaron Douglas:https://brainly.com/question/3429106
#SPJ1
a student was synthesizing aspirin in the laboratory. using the amount of limiting reactant, she calculated the mass of aspirin that should form as 10.34 g. when she weighed her aspirin product on the balance, its mass was 3.10 g. calculate the percent yield for this synthesis. %
Answers
Filtration can be used to separate the water-soluble acetic acid from the aspirin. The limiting reagent will be salicyclic acid.
How can we determine the limiting reagent?
By dividing the volume of each solution by its molarity, you can determine how many moles of each reactant there are. By subtracting the number of moles of each reactant from its stoichiometric coefficient in the balanced chemical equation, you may determine which reactant is the limiting one.
How many grams of aspirin were created during the process of making it?
This resulted in an estimated value of 3.029 grams for crude synthesized aspirin. The final aspirin product's calculated mass after purification was 2.169 grams. A theoretical yield of 2.520 grams was computed.
To know more about synthesizing aspirin visit;
https://brainly.com/question/29577431
#SPJ4
The web site of the Nobel Prize explains that readers who want to inspect the Curies' notebooks must sign a paper
that states that they are aware of the health risks that are involved with handling the notebooks. What health risk is
most likely to occur from handling the notebooks?
O excessive coughing
o anemia
O muscle cramping
O swelling of the joints
Answers
Answer: anemia because Marie curie died of anemia
Which of the following metals is most reactive?
a. Mg
b. Rb
c. Cs
d. Li
Answers
n an experiment the gram atomic mass of magnesium was determined to be 24.7. Compared to the accepted value 24.3, the percent error for this determination was A) 0.400 B) 1.65 C) 24.7 D) 98.4
Answers
Answer:
B) 1.65
Explanation:
See the image uploaded for the percent error formula
Work:
Theoretical Value - Accepted Value/Accepted Value * 100
= (24.7-24.3)/24.3 * 100
= 0.4/24.3 * 100
= 0.0164609053 * 100
= 1.64609053
Can be rounded to 1.65%
The percent error in finding atomic mass of magnesium with its observed value of 24.7 compared to the accepted value of 24.3 is 1.65.
What is percentage error?Error express how the calculated or observed value differ from the true or accepted value. The percentage error is calculated as follows:
Percentage error = [ (observed value - accepted value)/ accepted value ] × 100
The observed value of atomic mass of magnesium is 24.7 and accepted value is 24.3. Put these values in the equation above as follows:
percentage error = [(24.7-24.3)/24.3] × 100
= 1.65
Hence, the percentage error in the experiment of finding atomic mass of magnesium with an observed value of 24.7 and an accepted value of 24.3 is, 1.65. Thus, option B is correct.
To learn more about percentage errors, refer the link below:
https://brainly.com/question/4170313
#SPJ2
2. List and explain the three steps for solving a numeric problem.
Answers
Answer:
what is matter with example
A mothball, composed of naphthalene (C10H8) has a mass of 1.86 g. How many naphthalene molecules does it contain? Express your answer in molecules to three significant figures.
Answers
Answer:
1.476 mol molecules
Explanation:
How does an emerging idea differ from scientific consensus? Which best describes emerging scientific ideas?
Answers
Emerging scientific ideas are new theories or ideas that are gaining attention in the scientific community, but have not yet been fully accepted or confirmed.
Emerging ideas refer to the new and innovative ideas or theories that have yet to gain full scientific acceptance. While a scientific consensus is a view or theory that has been universally accepted and confirmed by multiple experiments or research, an emerging scientific idea is a new and unproven theory or idea that is gaining attention in the scientific community. These emerging ideas may also be referred to as scientific hypotheses. In contrast to scientific consensus, emerging scientific ideas have not yet been subjected to rigorous testing and confirmation.
They are generally proposed to explain new observations or experimental results, which have not yet been fully understood or explained by established scientific theories. Emerging scientific ideas can have the potential to challenge the current scientific consensus. If an emerging scientific idea is found to be valid, it can ultimately lead to the establishment of a new scientific consensus. For example, the emerging scientific idea of the Higgs boson particle led to the discovery of a new field in particle physics, which is now an established scientific consensus.
for such more questions on scientific
https://brainly.com/question/29886197
#SPJ8
6) What is the vapor pressure of water at 100°C?
Answers
Answer: The vapor pressure of pure water at 100°C is 760mm of Hg.
Explanation: We know tat 100 degree Celsius the water will convert into gas phase. At boiling point the vapor pressure of any liquid is 1 atmosphere and if we boil the water at 100° Celsius it means 1 atmosphere . So, 1 atmosphere = 760mm of Hg.
copper crystallizes in a face-centered cubic lattice. what is the mass of one unit cell? report your answer in grams. select one: a. 4.22 x 10-22 g b. 2.11 x 10-22 g c. 1.06 x 10-22 g d. 3.17 x 10-22 g
Answers
The mass of one unit copper cell is: A. 4.22 x \(10^{-22}\).
How to calculate the mass of one unit cell?
To determine the mass of one unit cell of copper, which crystallizes in a face-centered cubic lattice, follow these steps:
Find the number of atoms per unit cell. In a face-centered cubic (fcc) lattice, there are 4 atoms per unit cell. So: {(8 corners x 1/8 per corner) + (6 faces x 1/2 per face)}.Determine the molar mass of copper. Copper has an atomic weight of 63.546 g/mol.Calculate the mass of one copper atom. Divide the molar mass of copper by Avogadro's number. So: \(\frac{(63.546 g/mol) }{(6.022 x 10^{-22}atoms/mol) }\) = 1.055 x \(10^{-22}\) g/atom.Calculate the mass of one unit cell. Multiply the mass of one copper atom by the number of atoms per unit cell (4): (1.055 x \(10^{-22}\) g/atom) x 4 atoms = 4.22 x \(10^{-22}\) g.Then, the mass of one unit cell of copper in a face-centered cubic lattice is 4.22 x 10^-22 g. Therefore, he correct answer is A.
Learn more about FCC crystal here https://brainly.com/question/29398453
#SPJ11
The composition of a compound is 6.27 g calcium and 1.46 g nitrogen.
Calculate the empirical formula.
Answers
Answer:
Ca₃N₂
Explanation:
The empirical formula is the simplest whole-number ratio between moles of each element present in a molecule.
Thus, we need to convert mass of each atom to moles and find the ratio between these as follows:
Moles N:
1.46g * (1mol / 14.0067g) = 0.104moles
Moles Ca:
6.27g * (1mol / 40.078g) = 0.156moles
The ratio between Moles N and moles of Ca is:
0.156moles / 0.104 moles = 1.5
That means there are 1.5 moles of Ca per mole of N. As empirical formula must be given in whole numbers:
There are 3 moles of Ca per 2 moles of N.
Empirical formula is:
Ca₃N₂hydrogen is in which state of matter at room temperature
Answers
Answer:
gas
Explanation:
Hydrogen exists as a 2 atomed covalent so it is a gas at room temperature