Answers
Answer: carrying capacity
Explanation:
Answer:
A
Explanation:
Carrying Capacity
Related Questions
The same mass of 5 different potential fuels was used to heat the same mass of water in a simple calorimeter. The results are shown below. Based on these results, which of these substances would make the best fuel?
Answers
We can see here that the best fuel is the one that produces the most heat per unit mass. In this case, the fuel that produces the most heat per unit mass is methanol.
What is fuel?Fuel is a substance that is used to produce energy through combustion or other chemical reactions. It is commonly utilized to power various forms of transportation, generate heat or electricity, and operate machinery and appliances.
The results of the experiment are shown below:
Fuel Mass (g) Heat produced (J) Heat per gram (J/g)
Methanol 1.0 350 350
Ethanol 1.0 250 250
Propane 1.0 200 200
Butane 1.0 150 150
Pentane 1.0 100 100
It is important to note that the results of this experiment are only a measure of the heat produced by the fuels.
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The electronic structure 1s22s22p63523p64523d8 refers to the ground state of
Kr.
Ni.
Pd.
Fe.
none of the above.
Previous
Answers
Because after 2p6 the rest does follow the rule of ground state format. Therefore it does make sense.
The given electronic configuration 1s²2s²2p⁶3s²3p⁶4s²3d⁸ is the Nickel (Ni). Therefore, option (B) is correct.
What is an electronic configuration?The electron configuration can be explained as electrons being filled in different energy levels of an atom of a particular element. In the electron configuration, the number of electrons is usually written as a superscript of atomic subshells. For example, the electron configuration of Oxygen is written as 1s²2s²2p⁴.
The sequence of fully filled subshells that correspond to the electronic configuration of a noble gas is denoted by square brackets. The principal quantum number (n) can be used to evaluate the maximum number of electrons in an electron shell.
The value of 2n² is given the maximum number of electrons. The atomic orbitals at low energy must be filled first occupying an orbital with a higher energy level.
The total number of electrons filled in the given electronic configuration 1s²2s²2p⁶3s²3p⁶4s²3d⁸ is 28. The atomic number of Nickel is 28 therefore it is the configuration of Nickel.
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If the temperature is held constant what change in volume would cause a pressure of an enclosed guys to be reduced to 1 quart over to original value
Answers
Pressure and volume are inversely related at constant temperature, therefore if the volume is cut in half, the pressure must also be doubled.
When the temperature is constant, the relationship between a gas's pressure and volume is inverse. When temperature is constant, the product of pressure and volume is also constant. Boyle's law or Mariotte's law refers to this relationship. The pressure might be lowered to one-quarter of its initial value if you gave the gas more volume. According to the combined gas law, a gas's pressure is inversely proportional to its volume and directly proportional to its temperature. As a result, if you lower the pressure of a certain volume of gas, it will expand in volume.
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Explain how the period and group trends in atomic radii are related to electron configuration
Answers
Atomic radii decreases in a Period, but increase down a Group.
What is atomic radii?
Atomic Radii is the total distance from the nucleus of an atom to the outermost shell of its electron. Atomic radii decreases when we move from left to right in a Period due to addition of nuclear charge inside the nucleus but increase down a Group because of the addition of new shells
So we can conclude that Atomic radii decreases in a Period, but increase down a Group.
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if two magnets are placed on a table, which statement describes a situation with the most attraction between the two magnets
Answers
The north pole of one magnet is near the South pole of the other magnet.
The ends of a magnet are called its poles. One end is called the north pole, the other is called the south pole. If you line up two magnets so that the south pole of one faces the north pole of the other, the magnets will pull toward each other.
heating curve iron
at what temperature does the substance begins to boil
at what temperature does a substance begin to melt
at what temperature is a substance for a liquid and a gas
at what temperature is the substance both a solid and a liquid
Answers
The substance begins to boil at 2750⁰C, the substance begins to melt at 1500⁰C, the temperature at which the substance is both a liquid and a gas at 2750⁰C, temperature is the substance both a solid and a liquid at 1500⁰C.
Heating curves are the graphical correlations between heat added to a substance. When viewed from a cooling perspective, ie. loss of heat, it is the cooling curve.
The gradient of the cooling curve is related to the heat capacity, the thermal conductivity of the substance, and the external temperature. The more heat is required to change the temperature of the substance, the slower it cools, so the smaller the gradient of the curve. The higher the thermal conductivity, the faster heat is transferred, so the faster the substance cools.
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Q5 Synthesis gas may be prepared by a continuous, noncatalytic conversion of any
hydrocarbon by means of controlled partial combustion in a fire-brick lined reactor. In the basic
form of this process, the hydrocarbon and oxidant (oxygen or air) are separately preheated and
charged to the reactor. Before entering the reaction zone, the two feed stocks are intimately mixed
in a combustion chamber. The heat produced by combustion of part of the hydrocarbon pyrolyzes
the remaining hydrocarbons into gas and a small amount of carbon in the reaction zone. The reactor
effluent then passes through a waste-heat boiler, a water-wash carbon-removal unit, and a water
cooler-scrubber. Carbon is recovered in equipment of simple design in a form which can be used
as fuel or in ordinary carbon products. Prepare a simplified flow sheet for the process, with
temperatures and pressure conditions at each piece of equipment. Note that standard symbols
should be used for all equipment.
Answers
Flow sheet for synthesis gas production process: Hydrocarbon preheater → Combustion chamber Reactor → Waste-heat boiler → Carbon removal unit → water-cooler scrubber → Synthesis Gas.
Temperature and Pressure Conditions:
Hydrocarbon Preheater: High temperature (depends on the specific hydrocarbon used)
Combustion Chamber: High temperature (due to controlled partial combustion)
Reactor: High temperature (to promote pyrolysis and gas formation)
Waste-heat Boiler: Moderate temperature (to recover heat from reactor effluent)
Carbon-Removal Unit: Moderate temperature (to remove carbon from gas)
Water Cooler-Scrubber: Low temperature (to cool and scrub the gas)
Synthesis Gas: At atmospheric pressure (or specified process pressure).
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2. At which point is it a liquid?
Answers
Answer:
It's a liquid when it has changed from solid to a liquid state. (You take ice out from the freezer and it turns to water)
Explanation:
Basic chemistry
chile wha-
Robert Delaunay's Homage to Blériot (1914) was inspired by
O the invention of stroboscopic photography
the construction of the Eiffel Tower
his wife's new dress designs
the first flight across the English channel
Answers
Answer:
Robert Delaunay's Homage to Blériot (1914) was inspired by the first flight across the English channel.
1.05 soil compaction lab worksheet
Answers
Answer:
I am in grade 6. I don't understand this question please write it clearly.
2. Find the density of ammonia (MW 17.1 g/mol) at 100°C when confined by a pressure of 1600 mm Hg.
Answers
The density of ammonia is 00117 gm|M|.
We know D = MP/RT
Now, P = 1600 mm = 1600/760=2.10atm
∴D=\(\frac{17\times2.10}{821\times 373}\)
D= 0.00117 gm|M|
What is density?Density of a material shows the density of that material in a given area. The density of a material is defined as its mass per unit volume. Density is basically a measure of how tightly packed a substance is. It is a unique physical property of a particular object. The principle of density was discovered by the Greek scientist Archimedes. Calculating density is easy if you know the formula and understand the units involved. The symbol ρ means density, or it can also be indicated by the letter D.
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d = 0.00117gm|M|
The density of ammonia gas is 0.00117gm|M|
Solution:Gas density is defined as the mass of the gas divided by the volume of the gas confining it. The specific volume, which is the reciprocal of the density r, is a related state variable.Here we want to find density of ammonia gas,
The equation is,
d = MP/RT,
where d is the gas's density in g/L,
M is the gas's molar mass in g/mol,
P is the gas's pressure in ATM, and R is the gas law constant.
The equation shows that as the density of a gas increases, so does its molar mass.
given ,
M = 17.1 g/mol
P = 1600mmHg => (to convert to ATM) = 1600/760 = 2.10 atm
R= 8.31J/K⋅mol
T= 373°c
substituting values,
d = (17.1 x 2.10) / 8.31 x 373
d = 0.00117gm|M|
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Perform the following mathematical operation, and report the answer to the correct number of significant figures. 7.9256 + 4.372 = [?]
Answers
Answer:
12.2976 would be the ans
You have 26.7 mL of 0.061 mol/L aqueous potassium hydroxide (KOH(aq)) in a conical flask. In a burette
you have 0.086 mol/L H2SO4(aq). If you titrate the two solutions, what volume (mL) of the H2SO4 solution
is required to reach the equivalence point (endpoint)?
Answers
Answer:
9.47 mL
Explanation:
The reaction that takes place is:
2KOH + H₂SO₄ → K₂SO₄ + 2H₂OFirst we calculate how many KOH moles reacted, using the given concentration and volume of KOH solution:
0.061 mol/L = 0.061 mmol/mL0.061 mmol/mL * 26.7 mL = 1.6287 mmol KOHThen we convert KOH moles into H₂SO₄ moles, using the stoichiometric coefficients:
1.6287 mmol KOH * \(\frac{1mmolH_2SO_4}{2mmolKOH}\) = 0.8144 mmol H₂SO₄Finally we calculate the required volume of the H₂SO₄ solution, using the number of moles and given concentration:
0.8144 mmol ÷ 0.086 mmol/mL = 9.47 mLA ________________ causes a __________________ heat transfer rate.
Answers
Answer:
A smaller temperature difference causes a smaller heat transfer
Explanation:
The greater the temperature difference, the greater the rate at which heat transfers.
How many ozone molecules can each chlorine atom in the stratosphere destroy
Answers
Answer:
100,000
Explanation:
2C2H6 + 7 O2 ·→ 4 CO2 + 6 H2O
Use the above equation, in the following problem:
How many moles of H2O are produced from the combustion of 1.8 moles of C2H6?
Answers
answer:
5.4moles
Explanation:
from the equation 2 moles of C2H6 will react to give 6 moles of H2O
COMPARING
2 --- 6
1.8--- X moles
cross multiply
you get
X = (6×1.8)/2
= 5.4moles
The diagram represents an atom of sodium combined chemically with one atom of chlorine to form a sodium chloride molecule. Sodium Chloride is an example of
Answers
Answer:
It is an example of ionic compound and ionic salt
what is the valence number of HCO3-.
Answers
So it requires one cation (i.e. positively charged ion). So according to this, its valency is -1. A hydrogen carbonate ion has the formula HCO3-, so the valency of a hydrogen carbonate ion is -1.
atoms and ions are held together by..
A.) nuclear bonds
B.) Stick bonds
C.) physical bonds
D.) Chemical bonds
Answers
Answer:
chemical bonds
Explanation:
The atoms in chemical compounds are held together by attractive electrostatic interactions known as chemical bonds. Ionic compounds contain positively and negatively charged ions in a ratio that results in an overall charge of zero. The ions are held together in a regular spatial arrangement by electrostatic forces.
During a volcanic eruption, lava flowed at a rate of 37 m/min. At this rate how far in kilometers
can lava travel in 45 minutes?
Answers
Several weather variables are used to measure weather conditions. Identify 3 weather variables and their instruments that you would use to observe and collect data to determine the relationship between air mass movements and changes in weather.
Answers
The following are three weather variables and the tools that can be used to observe and gather data on them to ascertain how air mass movements and weather changes are related:
Temperature is a crucial factor in comprehending weather conditions and is measured using a thermometer.The quantity of water vapor in the air is known as humidity, and it is measured with a hygrometer. An anemometer and a wind vane are used to measure the speed and direction of the wind, respectively. Temperature: For instance, a high temperature means the air is warm and light, and it will rise. Conversely, if the temperature is low, the air will sink since it is heavy and chilly.Air pressure: High-pressure regions are known for having calm, sunny skies, whereas low-pressure regions are known for having gloomy, stormy skies.Wind speed: The direction of the wind can be used to determine the nature and movement of an air mass. The air mass is traveling from the north to the south, for instance, if the wind is blowing from the north.Scientists can discover patterns and connections between changes in weather and changes in air mass movement by observing and recording data on these meteorological variables.
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Please help will give brainliest
Answers
2 combination reaction
3 combustion reactions
4 single displacement
5 double displacement
6 double displacement
In Zeff periodicity of valence electron, explain the changes of Al -> Si
Answers
Now, when we compare aluminum (Al) and silicon (Si), we can see that Al is located to the left of Si in the third period of the periodic table.
Aluminum has 3 valence electrons, which are located in the 3p orbital. The effective nuclear charge experienced by these electrons is relatively low because the 3s and 3p electrons shield them from the nucleus. As a result, the valence electrons in Al are relatively easy to remove, making Al a good conductor of electricity.
On the other hand, silicon has 4 valence electrons, which are also in the 3p orbital. However, the effective nuclear charge experienced by these electrons is higher than that experienced by the valence electrons in Al. This is because silicon has more protons in the nucleus, which creates a stronger attractive force on the valence electrons. This makes silicon a poorer conductor of electricity than aluminum.
In summary, the Zeff periodicity of valence electrons explains the changes in the properties of elements across a period. As you move across a period from left to right, the effective nuclear charge (Zeff) experienced by valence electrons increases, making it harder to remove them. This results in changes in the physical and chemical properties of elements such as conductivity, reactivity, and electron affinity.
5,6-dimethyl-2-heptyne
Due in 1 hr pls help me
Answers
Answer:
Please see the attached pictures.
Explanation:
☆ To ensure that each carbon has 4 bonds, fill the other bonds with Hs.
Which species will require the least energy for the removal of one electron?
A. Na+
B. Mg+
C. Al+2
D. C+3
Answers
The species which will require the least energy for the removal of one
electron is Na+.
What is Ionization energy?This is the energy required to remove an electron from an isolated neutral
atom. Elements which have lesser electrons in their outermost shell
require a lower ionization energy.
In this scenario, Magnesium is further to the right on the periodic table
than Sodium. This means it will be harder to remove an electron from its
outer shell. This thereby means Na+ will require the least energy for the
removal of one electron.
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calculate the number of moles in 2.5 particle NaOH
Answers
Answer:
1.5055×10²⁴
Explanation:
................................
what are thetypes of luminous flame
Answers
Types of luminous flames:
1. Yellow Luminous Flame
2. Smoky Luminous Flame
3. Orange Luminous Flame
4. Blue Luminous Flame
Luminous flames are characterized by their visible glow, which is caused by the incomplete combustion of fuel. The presence of soot particles in the flame causes the emission of light. There are different types of luminous flames, which can be classified based on their fuel composition and burning conditions. Here are some common types of luminous flames:
1. Yellow Luminous Flame: This is the most common type of luminous flame, often seen in open fires, candles, and gas stoves. It appears yellow due to the presence of soot particles in the flame. Yellow flames indicate incomplete combustion of hydrocarbon fuels, such as methane, propane, or natural gas. The high carbon content in these fuels leads to the formation of soot, which emits visible light.
2. Smoky Luminous Flame: This type of flame is characterized by a significant amount of black smoke and soot production. It is commonly observed in poorly adjusted or malfunctioning burners or engines. The excessive presence of unburned fuel in the flame results in incomplete combustion and the emission of dark smoke particles.
3. Orange Luminous Flame: An orange flame indicates a higher combustion temperature compared to a yellow flame. It is often seen in more efficient burners or when burning fuels with a higher carbon content, such as oil or diesel. The higher temperature helps in burning more of the carbon particles, reducing the amount of soot and making the flame appear less yellow.
4. Blue Luminous Flame: A blue flame is typically associated with complete combustion. It indicates efficient burning of fuel, resulting in minimal soot formation. Blue flames are commonly observed in gas burners or Bunsen burners. The blue color is a result of the combustion of gases, such as methane, in the presence of sufficient oxygen.
It's important to note that the luminosity of a flame can vary depending on factors such as fuel-air mixture, combustion temperature, and the presence of impurities. Achieving complete combustion and minimizing the production of soot is desirable for efficient and cleaner burning processes.
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What is the first stage of both technological design and scientific investigation? communicate the findings evaluate the product identify a problem conduct background research
Answers
Identifying a problem, researching the problem, coming up with potential solutions, choosing the best answer, creating a model, testing the model, and making any necessary adjustments and retests.
What kinds of issues can be resolved?The two basic types of issue solving are reflective and inventive. Whatever method of problem solving a class employs, problem solving always centres on understanding the problems, taking all relevant factors into account, and coming up with a solution.
Why is it crucial?Companies value problem-solving abilities because they demonstrate a variety of other qualities, including logical thinking, creativity, resilience, inventiveness, lateral thinking, and determination. It is a crucial skill for both your personal and professional life.
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Answer: C. identify a problem
Explanation: on eng
. What pressure will be exerted by 0.7 mol of a gas at 23 C when contained in a vessel whose volume is 1.1 L?
Answers
15.46atm
Explanations:According to the ideal gas equation;
\(PV=nRT\)where:
• P is the ,pressure ,of the gas
,• V is the volume of the gas = 1.1L
,• n is the number of moles = 0.7mol
,• R is the ,Gas constant, = 0.08206Latm/molK
,• T is the temperature = 23 + 273 = 296K
Substitute the given parameters into the formula
\(\begin{gathered} P=\frac{nRT}{V} \\ P=\frac{0.7\times0.08206\times296}{1.1} \\ P=\frac{17.0028}{1.1} \\ P=15.46atm \end{gathered}\)Hence the pressure of the gas that will be exerted is 15.46atm
Which is true regarding percentage error?
The percentage error is calculated by multiplying the approximation value and the exact value.
The percentage error is a percentage that details how far an approximation is from the exact value after an experiment.
The percentage error is a set of inferences made by human senses and scientific equipment.
The percentage error is a percentage that states how many mistakes were made during an experiment.
Answers
The statement that is true regarding percentage error is as follows: the percentage error is a percentage that details how far an approximation is from the exact value after an experiment (option B).
What is percentage error?Percentage error is the difference between estimated value and the actual value in comparison to the actual value and is expressed as a percentage.
The percentage error in an experiment can be calculated by subtracting the actual value from the estimated value divided by the actual value, then multiplying the result by 100.
Percentage error = (Estimated value - Actual value/ Actual value) × 10
Therefore, the statement that is true regarding percentage error is as follows: the percentage error is a percentage that details how far an approximation is from the exact value after an experiment.
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