Answers
Answers:
Fission breaks apart nuclei
Fusion puts them together.
======================================================
Explanation:
The term "fission" is related to the term "fissure" which means "a cut or divide", often describing a geologic feature of the earth (eg: a crack in the rock).
Fusion is the idea of putting things together, which is the opposite of fission. The term doesn't have to apply to nuclear fusion. It could be something like the fusing of two ideas to create one new idea.
Answer:
the 2nd one
Explanation:
Related Questions
35.In the reaction H2SO4 + 2 LiOH --> Li2SO4 + 2 H2O, the parent acid is...Select one:a. H2Ob. H2SO4c. LiOH d. Li2SO4
Answers
Answer
B. H2SO4
Explanation
For the given reaction, the acid is H2SO4
An early arrangement of the then known elements was proposed by a British scientist John Newlands, which he called the Law of Octaves. Like other scientists at the time, Newlands arranged the elements in order of increasing atomic mass and noted that every eighth element had similar physical/chemical properties. In the modern Periodic Table, which of the following represents the last pair of elements for which Newlands' Law of Octaves would hold true?
Answers
The deminsion of the rectangular metal bar are 6cm, 8cm, 9cm. If the bar has a mass of 4kg. What is the density of the bar in kg/m3
Answers
According to the question, the density of the bar is 9.259 g/mL.
What is the density?Density may be defined as a type of physical property that significantly involves the measurement of quantity or mass per unit of volume in a particular substance.
Density is further characterized as the ratio of mass per unit volume. The unit of density can be expressed in g/cm³ or kg/m³.
According to the question, the mass of the bar = 4 kg.= 4000 g.
The volume of the rectangular bar will be calculated by length × breadth × height.
∴ 6 × 8 × 9 = 432 mL.
Now, the formula for calculating density = \(\frac{mass}{volume}\).
4000/432 = 9.259 g/mL.
Therefore, the density of the bar is 9.259 g/mL.
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20 PTS Which explains the differences in the distribution of solar energy on Earth's surface? (1 point)
A. Earth’s climate system determines how much energy is absorbed from the sun.
B. Earth’s gravitational force pulls the sun’s rays away from the equator.
C. Earth’s solar energy is dependent on air currents.
D. Earth’s curved shape and tilt on its axis do not allow the sun’s rays to fall evenly on its surface.
Answers
The differences in the distribution of solar energy on Earth's surface is due to Earth’s curved shape and tilt on its axis do not allow the sun’s rays to fall evenly on its surface.
The correct option is D.
What is solar energy?Solar energy refers to the energy produced by the Sun.
Solar energy is in the form of heat energy, light energy, and ultraviolet radiation.
The shape of the affects the amount of solar energy that reaches any region of the earth. The earth is spherical in shape. Hence, there is an uneven distribution of solar energy from the sun o the Earth. also, the tilt of the earth affects the amount of solar energy that reaches any region of the earth.
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While isobaric heat can be measured by using the coffee cup calorimeter, what kind of device would be needed to measure the reaction heat under isochoric condition? Please search literature to answer the question.
To measure the reaction heat more accurately at isobaric condition, what modification(s) would you suggest making on the coffee cup calorimeter? Please justify the suggested change(s).
Answers
To measure reaction heat under isochoric conditions, a bomb calorimeter is needed.
This device is designed to maintain a constant volume (isochoric) during the reaction, allowing for accurate measurement of reaction heat. To improve the accuracy of the coffee cup calorimeter for measuring reaction heat under isobaric conditions, a modification that could be made is to use a stirring device to ensure uniform mixing of the reactants and to minimize heat loss to the surroundings.
Additionally, a lid with a small hole could be placed over the top of the calorimeter to prevent heat loss while still allowing for pressure equalization. These modifications would help to minimize errors in heat measurement and improve the accuracy of the results obtained.
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moles of each product that would form as a result of the decomposition of aspirin
Answers
The decomposition of aspirin (acetylsalicylic acid,\(C_{9} H_{8} O_{4}\)) can occur through the hydrolysis reaction, resulting in the formation of acetic acid (\(CH_{3} COOH\)) and salicylic acid (\(C_{7} H_{6}O_{3}\)).
The decomposition of aspirin (acetylsalicylic acid, \(C_{9} H_{8} O_{4}\)) can occur through the hydrolysis reaction, resulting in the formation of acetic acid (\(CH_{3} COOH\)) and salicylic acid (\(C_{7} H_{6}O_{3}\)). To determine the moles of each product formed, we need to consider the balanced chemical equation for the reaction:
\(C_{9} H_{8} O_{4} = > C_{7} H_{6}O_{3} +CH_{3} COOH\)
From the equation, we can see that for every 1 mole of aspirin, 1 mole of salicylic acid and 1 mole of acetic acid are produced.
Therefore, the moles of salicylic acid and acetic acid formed will be equal to the number of moles of aspirin that decomposes. If we know the amount of aspirin in moles, we can directly calculate the moles of each product based on stoichiometry.
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if there are more products than reactants, does that mean there is an increase in the forward or backward reaction? And if there are more reactants that products, is there an increase in the forward or backward reaction?
Answers
Answer:
If there are more products than reactants, that means the reaction has shifted towards the left, which is the backward direction. If there are more reactants than products, that means the reaction has shifted towards the right, which is the forward direction.
120cm3 of a gas at 25°c exerts a pressure of 750mmHg. calculate its pressure if its volume increased to 150cm3 at 40°c.
Answers
Answer:
P2 = 1125 mmHg
Explanation:
Gas Pressure Calculation
To solve this problem, we need to use the combined gas law, which relates the pressure, volume, and temperature of a gas under different conditions. The combined gas law is given by:
(P1V1)/T1 = (P2V2)/T2
where P1, V1, and T1 are the initial pressure, volume, and temperature of the gas, and P2, V2, and T2 are the final pressure, volume, and temperature.
Let's start by calculating the initial conditions:
P1 = 750 mmHg
V1 = 120 cm^3
T1 = 25°C + 273.15 = 298.15 K (temperature in Kelvin)
Now we can plug in these values and solve for P2:
(P1V1)/T1 = (P2V2)/T2
(750 mmHg x 120 cm^3) / 298.15 K = (P2 x 150 cm^3) / (40°C + 273.15)
Simplifying this equation, we get:
P2 = (750 mmHg x 120 cm^3 x (40°C + 273.15)) / (298.15 K x 150 cm^3)
P2 = 1125 mmHg
Therefore, the pressure of the gas would increase to 1125 mmHg if its volume increased to 150 cm^3 at 40°C.
ChatGPT
A solution is prepared by adding 5.50 mL of 0.200 M sodium acetate to 6.50 mL of 0.200 M acetic acid. Acetic acid has an acid dissociation constatn Ka of 1.8(10^-5)
1. How many moles of sodium acetate are in the resulting solution?
2. What is the molar concentration of sodium acetate in the solution?
3. What is the predicted pH of the solution?
Answers
1) The number of moles of sodium acetate in the resulting solution is 1.1 * 10^-3 moles
2) Concentration of sodium acetate in the resulting solution is 0.09 M
3) The pH of the solution is predicted to be 5.6
What is the concentration of the resulting solution?We know that the term concentration has to do with the amount of substance that is in solution. In this case, what we have here is a buffer solution. A buffer is a solution of a salt and the weak acid.
Number of moles of acetate = 5.50/1000 L * 0.200 M
= 1.1 * 10^-3 moles
Number of moles of the acetic acid = 6.50/1000 L * 0.200 M
= 1.3 * 10^-3 moles
Total volume of the system = 5.50 + 6.50/ 1000
= 0.012 L
Concentration of sodium acetate in the resulting solution =
1.1 * 10^-3 moles/0.012 L = 0.09 M
Concentration of acetic acid in the resulting solution =
1.3 * 10^-3 moles/0.012 L =0.011 M
pKa = - log(Ka)
= -log(1.8 * 10^-5)
= 4.7
Given that;
pH = pKa + log(A-)/(AH)
pH = 4.7 + log(0.09/0.011)
pH = 5.6
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24. The Henry’s law constant for O2 is 1.3 × 10−3 M/atm at 25 °C. Assuming ideal solution behavior, what mass of oxygen, in grams, would be dissolved in a 40. L aquarium at 25 °C, assuming an atmospheric pressure of 1.00 atm, and that the partial pressure of O2 is 0.21 atm?
Please enter your answer with two sig figs, no units, no scientific notation.
Explain please <3
Answers
The aquarium has 0.35 g of dissolved oxygen in it.
What is mass?The quantity of matter in an object is expressed in terms of mass. It is a scalar number, and units like grams, kilograms, and pounds are used to measure it. Weight, the force of gravity acting on an object, is not the same as mass. An object's mass is a fundamental characteristic that exists regardless of where it is or the gravitational environment it is in.
How do you determine it?Henry's law, which connects the concentration of a gas in a solution to its partial pressure, can be used to determine the mass of oxygen (O2) that would be dissolved in a 40 L aquarium:
C = kH x P
where P is the partial pressure of the gas, kH is the Henry's law constant, and C is the concentration of the gas in the solution.
To solve the concentration by rearranging the equation, we obtain:
C = (kH x P)
Using the above values for kH and P, we obtain:
C = (1.3 10^-3 M/atm) x (0.21 atm) = 2.73 10^-4 M.
This indicates that the aquarium's dissolved oxygen concentration is 2.73 x 10^-4 M.
We can use the following equation to determine the mass of O2 dissolved in the aquarium:
Mass = concentration x volume x molar mass.
where O2 has a molar mass of 32 g/mol.
Inputting the values provided yields:
mass = (2.73 x 10^-4 M) x 40 L x 32 g/mol = 0.35 g
As a result, the aquarium has 0.35 g of dissolved oxygen in it.
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How many electrons must Aluminum lose or gain to obtain a noble gas
electron configuration? *
Answers
Answer:
3 electrons
Explanation:
aluminum : [Ne]3s23p1 [ N e ] 3 s 2 3 p 1 . It loses 3 electrons from 3s and 3p orbitals and attains the noble gas configuration of Neon.
Answer:
it loses 3 electrons from 3s and 3p orbitals and attains the noble gas configuration of Neon.
Explanation:
the guy on top beat me to it gg
A parasitic way of life can be best demonstrated by the feeding adaptations of the spider.
TRUE OR FALSE
Answers
The given statement "A parasitic way of life can be best demonstrated by the feeding adaptations of the spider." is False. Because, While some spiders are parasites, not all spiders are parasitic.
Additionally, many spiders are not even true parasites, as they typically do not harm their host organism. Spiders are typically classified as predators, as they feed on other insects and arthropods. While some spiders may occasionally feed on the blood of larger animals, such as birds or mammals, this behavior is not typically considered parasitic, as it does not involve a long-term relationship between the spider and the host organism.
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An error during which cellular process would create a gene mutation?
Answers
An error during DNA replication would create a gene mutation.
During DNA replication, the genetic information in a cell is copied to make new DNA molecules. However, mistakes can occur during this process, leading to changes in the DNA sequence, which can result in a mutation. Mutations can also be caused by exposure to environmental factors, such as radiation or chemicals, which can damage the DNA molecule directly or affect the cellular processes involved in DNA replication.
Mutations can have a variety of effects on the organism, ranging from no effect to causing serious health problems or even death. Gene mutations can also be inherited from a parent, which can result in genetic disorders or predisposition to certain diseases. Therefore, it is important to understand the mechanisms of gene mutations and their potential impacts on organisms.
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An airplane flies due east from an airport.
How could the airplane provide evidence that the shape of Earth is a sphere?
Select the words from the drop-down menus to complete the explanation.
By continuing to fly east, and with enough fuel, the airplane will eventually reach the
. The longest eastward journey would occur from an airport
. Very short journeys would occur
Answers
The fact that an airplane flying due east from an airport will eventually return to its starting point indicates that the Earth is a sphere due to the curvature of the Earth's surface.
How can an airplane flying due east provide evidence for the shape of the Earth?
By continuing to fly east, and with enough fuel, the airplane will eventually reach the same airport it started from. The longest eastward journey would occur from an airport located at one of the Earth's poles. Very short journeys would occur near the equator.
The fact that the airplane returns to its starting point indicates that the Earth is a sphere, as it would not be possible on a flat plane. This phenomenon is due to the curvature of the Earth's surface, which causes the plane's trajectory to follow a circular path along the Earth's surface.
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Which of the following is a possible
way to describe the SO3 component in
the reaction below?
Sa(s) + 120₂(g) → 8SO3(g)
A. 8 atoms SO3
B. 8 molecules SO3
C. 80.07g SO3
D. 32 LSO3
Answers
The correct answer is B. 8 molecules \(SO_3\). Option B
In the given reaction:
S(s) + \(O_2\)(g) → \(SO_3\)(g)
The stoichiometric coefficient in front of the \(SO_3\)molecule is 8, which indicates that 8 molecules of \(SO_3\)are formed as a product. This coefficient represents the ratio of the number of molecules involved in the reaction.
Option A (8 atoms \(SO_3\)) is incorrect because it only mentions the number of atoms, not molecules. The stoichiometric coefficient does not represent the number of atoms, but rather the number of molecules.
Option C (80.07g \(SO_3\)) is incorrect because it mentions a specific mass. The stoichiometric coefficient does not directly represent the mass of the substance, but rather the relative amount of molecules involved in the reaction.
Option D (32 \(SO_3\)) is incorrect because it mentions a specific volume. The stoichiometric coefficient does not directly represent the volume of the substance, but rather the relative amount of molecules involved in the reaction.
Therefore, the correct way to describe the \(SO_3\)component in the reaction is option B: 8 molecules \(SO_3\). This represents the ratio of the number of molecules of \(SO_3\)that are produced in the reaction.
Option B
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Suppose two students grab an end of a rope. Both shake a rope once in a upward direction to create crests traveling at each other. What would you see when crests meet? What type of interference does this show?
Answers
Answer:
This creates destructive interference.
Explanation:
When the two ends meet they will cancel each other out.
Both students are shaking the rope in the upward direction. Hence their crest will meet up and form the constructive interference pattern. The intensity of the increases.
What is constructive interference ?When two waves moves in phase, their crest or troughs add up and the amplitude of the wave increases. This phenomenon is called constructive interference.
If the two waves are passing out of phase to each other then they undergo destructive interference. The amplitude of the destructive interference pattern reduces from their initial values.
Here, both students are shaking the rope in the upward direction. Thus, they are in moving in phase. Hence their crest will meet up and form the constructive interference pattern. The intensity of the increases.
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Perform the following mathematical operation, and report the answer to the appropriate number of significant figures.
1204.2 + 4.72613 = [?]
The answer is not 1208.92613
Answers
1208.9213 not then what's the answer
Which main type of sedimentary rock forms from solutions?
chemical
clastic
organic
shale
Answers
Answer:
The answer is a.
Explanation:
I took the quiz and took notes.
If your questions were the same as mine the answers would be below
Question 1: Which process moves small rock pieces during sedimentary rock formation?
Answer: erosion
------------------------------------
Question 2: Which statement describes one role of minerals during cementation?
Answer: Minerals bind sediments together.
------------------------------------
Question 3: Which correctly lists three factors that contribute to weathering of rock?
Answer: ice, water, wind
------------------------------------
Question 4: The picture shows a sedimentary rock that was formed from crystalized minerals. This is the picture in text form - Orangish red rock with coarse texture.
Actual question number 4: Which type of sedimentary rock is shown?
Answer: chemical
------------------------------------
Question 5: Which type of sedimentary rock forms from weathered sediment?
Answer: clastic
------------------------------------
Question 6: Which statement describes deposition?
Answer: Deposition happens after weathering and erosion.
------------------------------------
Question 7: Which correctly lists three agents that loosen and carry away rock during the erosion process?
Answer: plants, animals, wind
------------------------------------
Question 8: Which processes contribute to the formation of chemical sedimentary rocks?
Answer: Minerals dissolve and crystalize.
------------------------------------
Question 9: The image shows an example of a sedimentary rock. This is the picture in text form - Brown rock containing small pieces of different materials.
Actual question: Which feature of this rock demonstrates that it is a clastic sedimentary rock?
Answer: visible rock fragments
------------------------------------
Question 10: Which process squeezes layers of sediment together?
Answer: compaction
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Pictures used in question four and question nine are in the attached pictures.
God bless! :D
pls help asap!!
The surface of earth has many impact craters that have been filled in with sediment. these craters were created by
A. moles
B. dinosaurs
C. people
D. meteorites
Answers
Answer:
D
Explanation:
Craters produced by the collision of a meteorite with the Earth (or another planet or moon) are called impact craters. The high-speed impact of a large meteorite compresses, or forces downward, a wide area of rock. The pressure pulverizes the rock.
How many grams of iron are produced when 450 grams of iron (lll) oxide are reacted
Answers
To answer this question, we need to know the balanced chemical equation for the reaction between iron (III) oxide and another substance that would produce iron.
How many grams of iron will be produced when 450 grams of iron (lll) oxide are reacted?Assuming the reaction is:
Fe₂O₃ + 3CO → 2Fe + 3CO₂
This equation tells us that one mole of Fe₂O₃ reacts with three moles of CO to produce two moles of Fe. We can use this information to calculate the number of moles of Fe that can be produced from 450 grams of Fe₂O₃.
Convert the mass of Fe₂O₃ to moles in the first step:
Molar mass of Fe₂O₃ = 2 x atomic mass of Fe + 3 x atomic mass of O = 2 x 55.85 + 3 x 16.00 = 159.69 g/mol
Number of moles of Fe₂O₃ = 450 g / 159.69 g/mol = 2.82 mol
According to the balanced chemical equation, 1 mole of Fe₂O₃ produces 2 moles of Fe. Therefore, the number of moles of Fe that can be produced from 2.82 mol of Fe₂O₃ is:
Number of moles of Fe = 2.82 mol x (2 mol Fe / 1 mol Fe₂O₃) = 5.64 mol
Convert the number of moles of Fe to grams in the final step:
Molar mass of Fe = 55.85 g/mol
Mass of Fe produced = 5.64 mol x 55.85 g/mol = 315.89 g
Therefore, if 450 grams of iron (lll) oxide are reacted with carbon monoxide to produce iron, the amount of iron produced would be 315.89 grams.
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Find volume of an object with the mass of 7.9g in the density of 2.28g/ ml
Answers
Answer:
The answer is
3.46 mLExplanation:
The volume of a substance when given the density and mass can be found by using the formula
\(volume = \frac{mass}{density} \)
From the question
mass = 7.9 g
density = 2.28 g/mL
The volume is
\(volume = \frac{7.9}{2.28} \\ = 3.46491228\)
We have the final answer as
3.46 mLHope this helps you
Given Kc = 2367 at 999 K, calculate Kp for the reaction at equilibrium: CS₂(g) + 3Cl₂(g) → S₂Cl3(g) + CCl4(8) R = 0.08206 L atm K-¹ mol-¹
Answers
The value of Kp for the given reaction at equilibrium is approximately 192,986.689 L atm mol⁻¹.
To calculate the equilibrium constant Kp for the given reaction, we can use the relationship between Kc and Kp, which is expressed as:
Kp = Kc * (RT)^Δn
Where:
- Kp is the equilibrium constant in terms of partial pressures.
- Kc is the equilibrium constant in terms of concentrations.
- R is the ideal gas constant (0.08206 L atm K⁻¹ mol⁻¹).
- T is the temperature in Kelvin.
- Δn is the change in the number of moles of gas (sum of products - sum of reactants).
In this case, the reaction involves four moles of gas on the left-hand side (reactants) and five moles of gas on the right-hand side (products). Therefore, Δn = 5 - 4 = 1.
Given that Kc = 2367 at 999 K, we can substitute these values into the equation:
Kp = 2367 * (0.08206 L atm K⁻¹ mol⁻¹ * 999 K)^1
Simplifying the expression:
Kp = 2367 * (81.367 L atm mol⁻¹)
Calculating the product:
Kp ≈ 192,986.689 L atm mol⁻¹
Therefore, the value of Kp for the given reaction at equilibrium is approximately 192,986.689 L atm mol⁻¹.
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Where is the moon located in a eclipse season
Answers
Answer:
During the eclipse season, the Moon is at a low ecliptic latitude (less than around 1.5° north or south), hence the Sun, Moon, and Earth become aligned straight enough (in syzygy) for an eclipse to occur.
Explanation:
1Li3 + 3H2O -> 1NH3 + 3LiOH
Determine the mass of lithium hydroxide produced when 0.38g of lithium nitride reacts with an excess of water.
Answers
0.785 g of lithium hydroxide (LiOH) are produced when 0.38 g of lithium nitride (Li₃N) reacts with an excess of water.
we can see that 3 moles of lithium hydroxide (LiOH) are produced for every 1 mole of lithium nitride (Li₃N) that reacts.
To determine the mass of LiOH produced from 0.38 g of Li₃N, we need to first calculate the number of moles of Li₃N present:
molar mass of Li₃N = 3 x atomic mass of Li + 1 x atomic mass of N
= 3 x 6.94 g/mol + 1 x 14.01 g/mol
= 34.83 g/mol
moles of Li₃N = mass / molar mass
= 0.38 g / 34.83 g/mol
= 0.01093 mol
Since the balanced equation shows that 1 mole of Li₃N produces 3 moles of LiOH, we can calculate the number of moles of LiOH produced:
moles of LiOH = 3 x moles of Li₃N
= 3 x 0.01093 mol
= 0.03279 mol
Finally, we can use the molar mass of LiOH to convert from moles to grams:
molar mass of LiOH = atomic mass of Li + 1 x atomic mass of O + 1 x atomic mass of H
= 6.94 g/mol + 15.99 g/mol + 1.01 g/mol
= 23.94 g/mol
mass of LiOH produced = moles of LiOH x molar mass of LiOH
= 0.03279 mol x 23.94 g/mol
= 0.785 g
Therefore, approximately 0.785 g of lithium hydroxide (LiOH) are produced when 0.38 g of lithium nitride (Li₃N) reacts with an excess of water.
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What is the correct formula that would result from the combination of the two ionic species? Cu2+ and SO42-
Answers
CuSO4.
brainliest???
which of the following compounds contain the Mn+2 ion? MnO, MnS2, MnO2, Mn2Br
Answers
\(\huge \bf༆ Answer ༄\)
The Correct choice is ~
\({ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:MnO\)
Under what circumstances may a health insurer charge a higher premium to a woman with a genetic disposition to breast cancer? a) Her mother has breast cancer but she doesn't. b) She has breast cancer. c) Her sister has breast cancer but she doesn't. d) Health insurers can never discriminate based on genetic information in this way.
Answers
Li2O + CaF2 --> LiF + CaO
You have 3 moles of Li2O. How many grams of LiF will be produced?
a
8.7 grams
b
156 grams
c
78 grams
d
1.8 x 10^24 grams
Answers
Answer:
8.77 grams
Explanation:
A student places a 50.0 g sample of a metal at 96.8° C into a calorimeter full of 100.0 g of
water (specific heat of water = 4.18 J/g°C). The water, initially at 22.0 °C, eventually
comes to a temperature of 25.9 °C. Calculate the heat gained by the water.
Answers
Answer:
1630.2 j
Explanation:
100 gm * 4.18 J/gm-C * ( 25.9-22 C ) = 1630.2 j
Which strand of hydrocarbons is used to produce plastic?
O Strand 2
O Strand 3
O Strand 4
●Strand 1
Answers
The strand 1 of hydrocarbons is used to produce plastic, hence option D is correct.
Raw resources like natural gas, oil, or plants that have been processed into ethane and propane are used to make plastics. The subsequent "cracking" procedure uses heat to transform ethane and propane into ethylene and propylene. To produce various polymers, these components are mixed.
Propylene is a substance found in large quantities in petroleum. In order to speed up chemical processes, refiners combine heated propylene with a catalyst to create plastic. Propylene molecules start to cluster together like beads on a thread as a result.
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