1.)A strong acid solution requires 3.2 grams of sulfuric acid (H2SO4). How many molecules of sulfuric acid are in the solution?
2.) While measuring out the sulfuric acid you accidentally spilled some of it! Before trying to clean it up you put some baking soda (NaHCO3) on to it neutralize it. If you scatter 7.8 g of baking soda on the acid how many moles of baking soda have you used?
Answers
Answer: 1. There are \(0.20\times 10^{23}\) molecules of sulfuric acid in the solution.
2. 0.093 moles of baking soda have been used.
Explanation:
According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number \(6.023\times 10^{23}\) of particles.
To calculate the moles, we use the equation:
1. \(\text{Number of moles of sulpfuric acid}=\frac{\text{Given mass}}{\text {Molar mass}}=\frac{3.2g}{98g/mol}=0.033moles\)
1 mole of \(H_2SO_4\) contains = \(6.023\times 10^{23}\) molecules of sulfuric acid
Thus mole of \(H_2SO_4\) contains = \(\frac{6.023\times 10^{23}}{1}\times 0.033=0.20\times 10^{23}\) molecules of sulfuric acid
There are \(0.20\times 10^{23}\) molecules of sulfuric acid in the solution.
2. \(\text{Number of moles of baking soda}=\frac{\text{Given mass}}{\text {Molar mass}}=\frac{7.8g}{84g/mol}=0.093moles\)
0.093 moles of baking soda have been used.
Related Questions
1 attempts left be sure to answer all parts. Rank each group of protons in order of increasing chemical shift for 1h nmr. A. Hab. Hbc. Hca. Lowest chemical shift b. Intermediate chemical shift b. Highest chemical shift
Answers
To rank the groups of protons in order of increasing chemical shift for 1H NMR, we need to consider the factors that influence chemical shift.
In general, electron-withdrawing groups and deshielding effects increase the chemical shift, while electron-donating groups and shielding effects decrease the chemical shift.
Based on this information, we can rank the groups as follows:
Lowest chemical shift: Hca (Shielded protons, likely due to electron-donating groups or shielding effects)
Intermediate chemical shift: Hab (Moderate chemical shift, could be influenced by nearby electron-withdrawing or electron-donating groups)
Highest chemical shift: Hbc (Deshielded protons, likely due to electron-withdrawing groups or deshielding effects)
So, the correct ranking from lowest to highest chemical shift is:
A. Hca
B. Hab
C. Hbc
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. Which of the following natural disasters is likely to cause the most widespread damage in a coastal ecosystem?
Answers
Answer:
Wildfire
Explanation:
Fire go brrrr
A tropical cyclone is a natural disaster which is likely to cause the most widespread damage in a coastal ecosystem.
What is ecosystem?
Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.
Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.
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You should not attenuate dB by: A. Increasing the distance B. Decreasing the level C. Adding a barrier D. Adding fuzz
Answers
To attenuate sound in decibels, increasing the distance, decreasing the level, or adding a barrier are effective methods. However, D. adding fuzz does not contribute to sound attenuation.
The attenuation of sound in decibels (dB) refers to the reduction in the intensity or level of sound. The factors that affect sound attenuation include distance, level, and barriers. However, adding fuzz does not contribute to sound attenuation.
A. Increasing the distance: As sound travels through the air, its intensity decreases with distance. This is known as the inverse square law, which states that sound intensity decreases by 6 dB for every doubling of the distance from the source.
B. Decreasing the level: Sound attenuation can be achieved by reducing the level or amplitude of the sound waves. This can be done through techniques such as soundproofing, using materials that absorb or reflect sound waves.
C. Adding a barrier: Barriers, such as walls, partitions, or acoustic panels, can obstruct the path of sound waves, resulting in their absorption or reflection. This reduces the sound level and contributes to attenuation.
D. Adding fuzz: Adding fuzz, which refers to a type of soft and fuzzy material, does not have any inherent sound attenuation properties. It is unlikely to absorb or reflect sound waves effectively, and therefore, it does not contribute to sound attenuation.
To attenuate sound in decibels, increasing the distance, decreasing the level, or adding a barrier are effective methods. However, adding fuzz does not contribute to sound attenuation.
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Compare and contrast the alkali metals and the alkaline earth metals by filling in the table below. Discuss 3 physical and 3 chemical properties of both groups, their magnetic properties, and their electron configurations.
Answers
Physical Properties:
Atomic Radius: Alkali metals have larger atomic radii compared to alkaline earth metals. This is due to the alkali metals having one valence electron in the outermost energy level, resulting in a less effective nuclear charge and increased atomic size.
Melting Point: Alkaline earth metals generally have higher melting points compared to alkali metals. This is because alkaline earth metals have a higher effective nuclear charge and stronger metallic bonding, making it more difficult to overcome the attractive forces between their atoms.
Density: Alkaline earth metals have higher densities than alkali metals. The higher densities result from the alkaline earth metals having more tightly packed crystal structures due to the increased nuclear charge and smaller atomic size.
Chemical Properties:
Reactivity: Alkali metals are highly reactive due to their low ionization energies. They readily lose their outermost electron to form a +1 cation. Alkaline earth metals are also reactive but less so compared to alkali metals since their ionization energies are higher, requiring more energy to remove their two valence electrons.
Oxidation States: Alkali metals predominantly exhibit a +1 oxidation state in compounds. In contrast, alkaline earth metals typically exhibit a +2 oxidation state due to the loss of their two valence electrons.
Reactivity with Water: Alkali metals react vigorously with water, producing hydrogen gas and an alkaline solution. Alkaline earth metals also react with water but less vigorously compared to alkali metals.
Magnetic Properties:
Both alkali metals and alkaline earth metals exhibit paramagnetic behavior, meaning they are weakly attracted to magnetic fields. This is because their electron configurations in the outermost energy levels contain unpaired electrons.
Electron Configuration:
Alkali metals have an electron configuration ending in s1, meaning they have a single valence electron in the outermost s orbital. Alkaline earth metals have an electron configuration ending in s2, indicating two valence electrons in the outermost s orbital.
It's important to note that these properties can vary within each group of elements due to factors such as atomic size, shielding effect, and nuclear charge.
Select the correct formula for cellular respiration. a. glucose oxygen → carbon dioxide water atp b. glucose water → oxygen carbon dioxide atp c. carbon dioxide glucose → oxygen water atp d. carbon dioxide water atp → glucose oxygen
Answers
The correct formula for cellular respiration is a. glucose + oxygen → carbon dioxide + water + ATP. Cellular respiration is the process by which cells convert glucose and oxygen into carbon dioxide, water, and energy in the form of ATP (adenosine triphosphate). It is a fundamental process in living organisms, including plants and animals, as it provides the necessary energy for various cellular activities.
During cellular respiration, glucose, a simple sugar, is broken down in a series of chemical reactions. The process begins in the cytoplasm with glycolysis, where glucose is converted into two molecules of pyruvate. Then, in the mitochondria, the pyruvate molecules undergo further reactions in the Krebs cycle, producing carbon dioxide as a byproduct. Simultaneously, oxygen is utilized in the electron transport chain, where it serves as the final electron acceptor, creating a gradient that drives ATP synthesis.
The overall equation for cellular respiration accurately summarizes these processes, with glucose and oxygen as the reactants, and carbon dioxide, water, and ATP as the products. It is important to note that this equation represents the overall process and does not capture the specific details and intermediates involved in each step.
In conclusion, the correct formula for cellular respiration is a. glucose + oxygen → carbon dioxide + water + ATP. This equation encapsulates the conversion of glucose and oxygen into carbon dioxide, water, and ATP, which are essential for energy production in cells.
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what are the major products obtained upon treatment of anisole, phoch3, with excess hbr?
Answers
The major product obtained upon treatment of anisole with excess HBr is 4-bromoanisole (p-bromoanisole).
When anisole (methoxybenzene) is treated with excess hydrogen bromide (HBr), the reaction undergoes electrophilic aromatic substitution. The major products obtained depend on the reaction conditions.
Under normal conditions, the major product obtained is 4-bromoanisole (p-bromoanisole), formed by electrophilic substitution of the bromine atom at the para position (the 4-position) of the aromatic ring:
PhOCH₃ + HBr → PhOCH₂Br + H₂O
In some cases, a small amount of the ortho (o-) isomer may also be formed as a minor product.
Therefore, the major product obtained is 4-bromoanisole (p-bromoanisole).
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Given the blackbody curve of the graph, what color will Star A be?
Blackbody radiation graph for Star A, which has a surface temperature of 17,000 degrees Celsius. At the point where the curve peaks, the wavelength is approximately 400 nanometers, at the far-left end of the visible light spectrum.
Blue
Red
White
Yellow
Answers
Star A will have blue color as hottest stars are blue in color.
Effect of temperature Because it reveals the star's surface temperature on the scale of black body radiation, a star's hue is essential for identifying it. 5,500 K is usual for a yellow star and is the temperature of the sun's surface. A bright red star's surface temperature is 3,500 K, while a dark red star's surface temperature is 2,500 K. Red stars are cooler than the sun. With surface temperatures ranging from 10,000 K to 50,000 K, blue stars are the hottest stars known to exist.Nuclear fusion events at stars' cores provide the energy for them to shine. Throughout the course of the star's life, a dynamic equilibrium is maintained between the gravitational forces that keep the star together and the reactive core's expanding heat. High levels of energy are produced through fusion.For more information on color of star kindly visit to
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14. A force acts for 0.2 second on a body of mass 80 kg at rest and produces a velocity of 10 ms¹.Find the magnitude of the force.
Answers
The magnitude of the force acting on the body is 4000 Newtons.
To find the magnitude of the force, we can use Newton's second law of motion, which states that the force applied to an object is equal to the product of its mass and acceleration.
The given information includes the mass of the body (80 kg) and the resulting velocity (10 m/s). However, since the time duration (0.2 seconds) is also provided, we can use it to calculate the acceleration of the body.
The formula to calculate acceleration is:
Acceleration = Change in Velocity / Time
The change in velocity can be calculated by subtracting the initial velocity (which is 0 m/s as the body is at rest) from the final velocity:
Change in Velocity = Final Velocity - Initial Velocity
Change in Velocity = 10 m/s - 0 m/s
Change in Velocity = 10 m/s
Now, we can calculate the acceleration:
Acceleration = Change in Velocity / Time
Acceleration = 10 m/s / 0.2 s
Acceleration = 50 m/s²
Finally, we can calculate the magnitude of the force using Newton's second law:
Force = Mass x Acceleration
Force = 80 kg x 50 m/s²
Force = 4000 N
Therefore, the magnitude of the force acting on the body is 4000 Newtons.
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3 Cu + 8HNO3 --> 3 Cu(NO3)2 + 2 NO + 4 H2O
In the above equation how many moles of water can be made when 9 moles of HNO3 are consumed?
Answers
Answer:
5 moles
Explanation:
From the coefficients of the equation, we know that for every 8 moles of nitric acid consumed, 4 moles of water are produced.
So, the answer is 9(4/8), which is 5 moles to 1 sf.
HOw much energy does it take for 100.0g of iron to change from 25°c to 50 ° c. The specific heat capacity oF ion is 0.449 j/g°c.
Answers
The energy required for 100.0 g of iron to change from 25 °C to 50 °C is 1122.25 J.
How to find the energy?To calculate the energy required for 100.0 g of iron to change temperature from 25 °C to 50 °C, we can use the formula for heat transfer:
q = m * C * ΔT
where:
q = heat transfer (in joules)m = mass of the substance (in grams)C = specific heat capacity of the substance (in J/(g°C))ΔT = change in temperature (in °C)Given:
Mass of iron (m) = 100.0 g
Specific heat capacity of iron (C) = 0.449 J/(g°C)
Change in temperature (ΔT) = Final temperature - Initial temperature = 50 °C - 25 °C = 25 °C
Plugging in the given values into the formula:
q = 100.0 g * 0.449 J/(g°C) * 25 °C
q = 1122.25 J
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Forensic psychiatry focuses on the relationship between human behavior and criminal justice.
O True
O False
Answers
Hope this helps
what is the molecular geometry of SCN- using the electron pair repulsion model?
Answers
Shape is Linear
Bond Angles 180
Fluid Systems:
1. What are the key differences between pneumatic and hydraulic systems?
2. What does Pascal’s Law State? Provide an example of any household/everyday item, and describe how it applies Pascal’s Law.
3. Pneumatic Systems 3 Advantages, 3 Disadvantages, 3 Examples.
4. Hydraulic Systems 3 Advantages, 3 Disadvantages, 3 Examples.
Answers
The key differences between pneumatic and hydraulic systems are:
The fluid used: Pneumatic systems use air as the fluid, while hydraulic systems use a liquid such as oil.
The transmission of power: In pneumatic systems, power is transmitted through the movement of air, while in hydraulic systems, power is transmitted through the movement of a pressurized liquid.
The types of forces involved: Pneumatic systems typically involve forces that are relatively low in magnitude but high in speed, while hydraulic systems involve forces that are high in magnitude but low in speed.
Pascal's Law states that the pressure applied to a confined fluid is transmitted undiminished in all directions and acts with equal force on equal areas. An example of a household item that applies Pascal's Law is a hydraulic jack, which uses a confined fluid (usually oil) to transmit pressure and lift heavy objects. When the handle of the jack is pressed down, the pressure of the fluid is increased and transmitted through the system, causing the lift arm to rise.
Advantages of pneumatic systems:
They are relatively simple and easy to maintain.
They are energy efficient, as air is a readily available and inexpensive fluid.
They are safe to use, as there is no risk of explosions or fires.
Disadvantages of pneumatic systems:
They are limited in their power transmission capabilities, as the forces generated by pneumatic systems are typically lower than those generated by hydraulic systems.
They are not suitable for use in high-pressure or high-temperature applications.
They are prone to leakage, as air can escape through small openings.
Examples of pneumatic systems:
Air compressors
Pneumatic tools such as hammers and drills
Automatic doors in buildings
Advantages of hydraulic systems:
They can transmit large amounts of power with relatively small amounts of force.
They are able to generate high pressures, making them suitable for use in a wide range of applications.
They are relatively simple and easy to maintain.
Disadvantages of hydraulic systems:
They require a separate power source to operate, such as an electric motor or gasoline engine.
They can be expensive to repair if they fail or leak.
They can be hazardous to use, as the fluid used (usually oil) is flammable and can cause burns or fires.
Examples of hydraulic systems:
Hydraulic lifts in automotive garages
Hydraulic jacks and presses
Hydraulic brakes in vehicles
Excavators and bulldozers
Justify how the octet rule helps to predict which elements can bond with each other. Be sure to cite specific examples and non examples in
your response
Answers
preferAnswer:
The octet rule refers to the tendency of atoms to prefer to have eight electrons in the valence shell. When atoms have fewer than eight electrons, they tend to react and form more stable compounds. Atoms will react to get in the most stable state possible
Explanation:
Hopefully this is what your looking for
The question is in the photo.Which of the following atoms will bond with O in a 1:1 ratio of O and that element:a) Lithiumb) Boronc) Berylliumd) Nitrogen
Answers
Which of the following atoms will bond with O in a 1:1 ratio of O and that element:
a) Lithium
b) Boron
c) Beryllium
d) Nitrogen
To solve the problem we have to look for the oxidation states of these elements.
Li: +1 B: +3 Be: +2 N: +5
These compounds will form an oxide with oxygen. The usual oxidation state of oxygen is -2. To form an oxide, we have to combine our element with oxygen and produce a compound with neutral charge.
For example, Li is +1, O is -2, so we have to combine 2 atoms of Li with one atom of O. The formula for the lithium oxide is Li₂O. Similarly we can form the other oxides. We will obtain:
Li₂O B₂O₃ BeO N₂O₅
If we look at the formulas of these oxides, the only one that will bond with O in a 1:1 ratio is Beryllium since its formula is BeO (it has one atom of O and one atom of Be).
Answer: c) Beryllium.
Pls Help! one multiple-choice question for 13 points and brainliest!
Where does the energy from sunlight go in photosynthesis?
a) covalent bonds in carbon dioxide
b) covalent bonds in glucose
c) covalent bonds in oxygen
d) polar covalent bonds in water
Answers
Answer:
B
Explanation:
They use energy from sunlight to synthesise glucose from carbon dioxide and water.
Can anyone give me any info around the subject of acids and alkalis? ( indicator,neutralisation etc anything helps pls?)
Answers
Answer:
hope this helps
Explanation:
acid a substance with particular chemical properties including turning litmus red, neutralizing alkalis, and dissolving some metals; typically, a corrosive or sour-tasting liquid of this kind.
alkali is a base dissolves in water.
indicators are litmus papers. acid turns litmus blue indicator to red. and base turns red litmus to blue. alkali is base.
what is the molarity of a hcl solution prepared by dissolving 0.165 moles of hcl in sufficient water to producea 200. ml solution?
Answers
The molarity of the HCl solution prepared by dissolving 0.165 moles of HCl in sufficient a water is produce a 200 ml solution will be 0.825 M.
Molarity (M) is the unit of concentration that represents the number of moles of solute dissolved in one liter of solution. It is termed as the amount of the solute (in moles) divided by the volume of the solution in liters.
To calculate the molarity (M) of a solution, we can use the formula;
Molarity (M) = moles of solute/volume of solution (in liters)
Given; moles of HCl = 0.165 moles
volume of solution = 200 ml = 200/1000 L (since 1 L = 1000 ml)
Plugging in the values;
Molarity (M) = 0.165 moles / 200/1000 L
Molarity (M) = 0.165 moles / 0.2 L
Molarity (M) = 0.825 M
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What is the density of 37.72 of material whose volume is 6.80cm
Answers
Answer: Density is mass per unit volume. You have supplied both measurements, so simply take the quotient.
Explanation: Density, p,=37.72⋅g6.80⋅cm3=??g⋅cm−3
rutherford’s gold foil experiment demonstrated that
Answers
Answer:
Explanation:
The space between the large nucleus and the electrons is huge. We know this because the alpha particles shot at the gold foil most went right on through. That means that the space between hold atoms is very large.
B
Not only that but the deflection that takes place is not frequent further telling us that the the nucleus must be positively charged. That observation comes from the deflection itself. The charge on the nucleus must be the same as the alpha particle. If they were different, and the nucleus was negative, those particles that were deflected would now be absorbed.
will mark BRAINLIEST!!!
Answers
Answer:
c
Explanation:
Answer:
Boron and Carbon
Explanation:
They both are in Group 14 in the Periodic Table of Elements.
Sulphur has an atomic number 16 and a mass of 32.State the number of protons and neutrons in the nucleus of sulphur. Give a simple diagram to show the arrangement of electrons in an atom of sulphur.
Answers
Sulfur atoms have an electron configuration of 2,8,6.
The arrangement of an atom's or molecule's electrons in atomic or molecular orbitals is known as the electron configuration in atomic physics and quantum chemistry. In order to compute the valence electrons of an atom, electron configurations assist us to understand the elements' chemical nature. Additionally, it aids in grouping components into various blocks.
Given Data:
Atomic number = 16
Atomic mass = 32
Now,
Number of protons = 16
Number of electrons = 16
So we can compute the Number of Neutrons now by:
Number of neutrons = Atomic Mass - Atomic Mass
Number of Neutrons = 32 − 16
Number of Neutrons = 16
So, the Electronic configuration = 2,8,6
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what are the factors affecting gravity?
Answers
Gravity, as a fundamental force of nature, is influenced by several factors. The following are some of the key factors affecting gravity:
Mass: The most significant factor affecting gravity is the mass of the objects involved. According to Newton's law of universal gravitation, the gravitational force between two objects is directly proportional to the product of their masses. Greater mass leads to a stronger gravitational force.Distance: The distance between two objects also plays a crucial role in the strength of gravity. According to the inverse square law, the gravitational force decreases as the distance between objects increases. As objects move farther apart, the gravitational attraction between them weakens.Gravitational Constant: The gravitational constant, denoted by G, is a fundamental constant in physics that determines the strength of the gravitational force. It is a universal constant and does not change, affecting the overall magnitude of gravity.Shape and Distribution of Mass: The distribution of mass within an object can influence the gravitational field it generates. Objects with a more compact and concentrated mass distribution will have a stronger gravitational pull compared to those with a more spread-out mass distribution.External Influences: Gravity can be influenced by external factors such as nearby celestial bodies or the presence of other forces. For example, the gravitational interaction between the Earth and the Moon affects tides on Earth's surface.If more solute is added to a solvent, more than is able to dissolve at a given temperature, a(n)?
Answers
If more solute is added to a solvent, more than is able to dissolve at a given temperature, a(n) equilibrium will be established between dissolved and undissolved solute.
What is an equilibrium ?A condition of an item known as equilibrium is one in which two or more opposing forces, whether internal, external, or a combination of both, act on it and cancel one another out to maintain the object in the same state as before. The Latin word libra, which meaning weight or balance, is the word's etymological ancestor.
Here are a few instances of equilibrium:
A book that is open and at resta vehicle which is driving at a steady speeda chemical process where the rates of the forward and reverse reactions are equalLearn more about equilibrium
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Which of the following foods contains the same amount of calcium as 8 oz of nonfat milk?
A) 4.9 oz plain, nonfat yogurt
B) 4.9 oz Swiss cheese
C) 1.5 oz canned sardines
D) 1 cup of lima beans
Answers
The correct answer is option C. if you are looking for a non-dairy alternative to get the same amount of calcium as 8 oz of nonfat milk, canned sardines can be an excellent option.
which is 1.5 oz of canned sardines. Nonfat milk contains approximately 300 milligrams of calcium per 8-ounce serving. Sardines are an excellent source of calcium and a 1.5-ounce serving of canned sardines contains around 325 milligrams of calcium, which is equivalent to the calcium content in 8 ounces of nonfat milk.
Option A, 4.9 oz plain, nonfat yogurt, contains around 150 milligrams of calcium, which is less than half the amount present in 8 oz of nonfat milk. Option B, 4.9 oz Swiss cheese, contains around 270 milligrams of calcium, which is slightly less than the amount present in 8 oz of nonfat milk. Option D, 1 cup of lima beans, contains around 32 milligrams of calcium, which is a significantly lower amount than what is present in 8 oz of nonfat milk.
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a food has a ph that is higher than the ph of pure water but lower than the ph of an oven cleaning solution. based on this information, the food is a
Answers
A food has a pH that is higher than the pH of pure water but lower than the pH of an oven cleaning solution. Based on this information, the food is an egg white.
A degree of how acidic or simple a substance or solution. pH is measured on a scale of 0 to 14. on this scale, a pH cost of 7 is impartial, which means that it's miles neither acidic nor primary. A pH fee of much less than 7 method it is greater acidic, and a pH price of extra than 7 way it's far extra fundamental.
Excessive pH in a waterbody is considered to have a high pH if pH exceeds nine for extended intervals or with high frequency. Excessive pH is less not unusual than low pH as a candidate cause, due to the fact anthropogenic sources are acidic greater frequently than primary.
There are techniques for measuring pH: colorimetric techniques the use of indicator solutions or papers, and the extra accurate electrochemical methods the usage of electrodes and a millivoltmeter.
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50.5 kilometers to feet
Answers
50.5 km to ft is 165682.4
Answer:
the other guy is right its 165682.415
What is the total pressure exerted by a mixture containing two gases if the partial pressure of one gas is 70 kPa and the partial
pressure of the other gas is 30 kPa?
A) 70 kPa
B) 40 kPa
100 kPa
D) 30 kPa
Answers
Answer:
C) 100 kPa
The total pressure exerted by a mixture of gases is equal to the sum of the partial pressures of each individual gas. In this case, the partial pressure of the first gas is 70 kPa and the partial pressure of the second gas is 30 kPa. Therefore, the total pressure exerted by the mixture is 70 kPa + 30 kPa = 100 kPa. The answer is C) 100 kPa.
Explanation:
Explain why most volcanoes occur at plate boundaries and which two types of boundaries are most common.
Please explain why your answer is correct
Answers
Most volcanoes occur at plate boundaries because the tectonic plates are moving away from one another and the Earth's crust is pulled apart to create a new pathway for rising hot magma to flow on to the surface while the two types of boundaries which are most common are:
Divergent plate boundaries.Convergent plate boundaries.What is a Volcano?This is referred to as a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.
It occurs at the plate boundaries because Earth's crust is pulled apart to create a new pathway for rising hot magma to flow on to the surface and the types which are most common are divergent plate boundaries which includes two tectonic plates that are moving away from each other and convergent plate boundaries which involves two tectonic plates moving toward each other.
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Consider a mixture of soil and water and. Impart it to a colloid, such as milk. Which property best differentiates these two mixtures?
A. Soil and water is a suspension because it consists of minute particles suspended in the medium. Milk is a colloid because it consists of larger particles suspended in the medium, which start to settle when allowed to stand.
B. Soil and water is a colloid because it consists of minute particles suspended in the medium. Milk is a suspension because it consists of larger particles suspended in the medium, which start to settle when allowed to stand
c. Soil and water is a colloid because it has a uniform composition. Milk is a suspension because it doesn't have a uniform
composition
D. Soil and water is a suspension because it consists of larger particles suspended in the medium, which start to settle when allowed to stand. Milk is a colloid because it consists of minute particles that remain suspended in the medium.
E. Soil and water is a suspension because it has a uniform composition. Milk is a colloid because it doesn't have a uniform
composition.
Answers
Soil and water is a suspension because it consists of larger particles suspended in the medium, which start to settle when allowed to stand. Milk is a colloid because it consists of minute particles that remain suspended in the medium.
The correct answer is (D)
The mixture of soil and water is considered to be a suspension because it is composed of minute particles suspended in the medium. Milk, on the other hand, is a colloid because it consists of larger particles suspended in the medium, which start to settle when allowed to stand.
There are a few differences between these two mixtures, but the most important one is their particle size.
A colloid is a mixture of two or more substances in which one substance is finely dispersed in the other.
The dispersed particles are usually between 1 and 1000 nanometers in size, making them too small to be seen with the eye.In contrast, a suspension is a mixture in which small particles of a solid are dispersed throughout a liquid. These particles are usually much larger than the particles in a colloid, ranging from 100 to 10,000 nanometers in size. As a result, they can be seen with the eye and will eventually settle out of the liquid if left undisturbed.
The property that best differentiates these two mixtures is their stability.
Colloids are much more stable than suspensions because the particles are smaller and more evenly dispersed throughout the medium.
They do not settle out of the medium as easily as suspensions and are not affected by gravity to the same extent. On the other hand, suspensions are less stable because the particles are larger and tend to settle out of the medium over time if left undisturbed.
In conclusion, the property that best differentiates the mixture of soil and water (a suspension) from milk (a colloid) is their particle size. Colloids have smaller particles that are more evenly dispersed throughout the medium, making them more stable than suspensions, which have larger particles that tend to settle out of the medium over time.
The correct answer is (D)
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