The success of ELIZA and PARRY reveal is Humans attribute intelligence to things that are not actually intelligent.
What are attributes of intelligence?There are various ways to describe intelligence, including higher level skills (including abstract reasoning, mental modeling, decision-making, and problem-solving), the capacity for learning, emotional intelligence, creative thinking, and environment-appropriate adaptation. Because creativity goes beyond knowledge recall and includes knowledge invention, it is the ultimate type of intellect.
What are the 4 types of intelligence?Gardner proposes that people have multiple types of intelligence, including musical, interpersonal, spatial-visual, and linguistic intelligences, to fully account for the diversity of skills and talents that people possess.
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Describe how to find out the number of valence electrons for elements in groups 1 & 2 and 13-18.
The valence electrons for elements is the number of electrons in their outermost shells.
How to calculate valence electrons in atomsThe valence electrons of atoms of elements are the number of electrons in the outermost shell of the atoms.
The innermost shell of every atom can take a maximum of 2 electrons. Thereafter, all other shells are able to take a maximum of 8 electrons. If the last shell of an atom is not completely filled, the number of electrons on the shell is equivalent to the valence electrons.
For every neutral atom, the number of valence electrons is equivalent to the group the atom belongs to on the periodic table.
Thus, group 1 elements have 1 valence electron, group two elements have 2 valence electrons, and so on.
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Which solution has the same number of moles of hcl as 25.0 ml of 0.200 m solution of hcl?
12.5 mL of 0.400M solution of HCL has the same number of moles of HCL as 25.0 ml of 0.200m solution of HCL.
What is a mole?A unit of measurement for substance amount is the mole. We have a reliable way to translate between atoms/molecules and grams by moles. Molecules can be expressed in terms of volume, the number of atoms or molecules, and molecular mass. A pure material has a molecular mass in grams that are equivalent to 1 mole of that substance.
Multiplying the volume in L by the molarity in mol/L gives moles of HCL
25.0 mL(1L/1000 mL)(0.200mol HCL/1L)
=0.00500 mol HCL in the solution.
For each answer choice, perform the same calculation to identify the correct match.
12.5mL(1L/1000mL)(0.400 mol HCL/1L)
=0.00500 mol HCL
The correct answer is 12.5mL of 0.400M solution of HCL.
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Two stable isotopes of copper have the following masses and percent abundances in nature:
Cu-63; Isotopic mass: 62.93 amu; % abundance: 69.09
Cu-65; Isotopic mass: ? amu; % abundance: 30.91
If copper has an atomic mass of 63.55 g/mole, what is the isotopic mass of Cu-65?
OPTIONS
64.01 amu
64.53 amu
64.93 amu
65.03 amu
MAKE SURE TO REALLY EXPLAIN IT! HOW DID U DETERMINE THIS? WHAT STRATEGY DID U USE? STEP BY STEP I WANT TO KNOW EVERYTHING!!
Answer:
the option will be no.3
Explanation:
why? because I said so
What is the atmosphere?
Answer:
The atmosphere is the layer of gases surrounding a planet or other celestial body.
Explanation:
Hope this helps:)
The slope of the graph
What units are appropriate for the slope?
The density of a gold sample is 18.88 is it pure gold?
20 is the slope of the given graph
The density of the pure gold is 19.3g/cc. here in this figure it is given that a graph plotted against mass vs volume. the slope is calculated by
y₂-y₁/x₂-x₁ = 0.4-0.1/0.02-0.005
=20
density of the sample is so from the above given data the calculated average density we get it 19.3 which is the pure golds density.
Gold nuggets are naturally occurring pieces of gold in nature. Streams often concentrate nuggets and fine gold in placer gold. Nuggets are obtained from placer mining, but are also found in gold-bearing veins or deposits of weathered deposits.
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How many moles of sodium nitride, nan3, are needed to produce 3.94 mol of nitrogen, n2?
Number of moles of sodium nitride, NaN₃ needed to produce 3.94 moles of Nitrogen, N₂ is 2.63 moles
Decomposition of sodium nitride is
NaN₃ → Na + N₂
On balancing the given reaction we need to add the necessary coefficients behind the reactants and products
2NaN₃ → 2Na + 3N₂
So, 2 moles of NaN₃ is needed to form = 3 moles of N₂
or 3 moles of N₂ is produced from = 2 moles of NaN₃
1 mole of N₂ is produced from = 2/3 moles of NaN₃
3.94 moles of N₂ of produced from = 3.94 x 2/3 moles of NaN₃
= 2.63 moles of NaN₃
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Identified triads of elements with similar properties: organized elements according to increasing atomic mass:
Element of first triads with similar properties are : calcium , strontium and barium are in increasing order of atomic mass.
A triad is a grouping of three elements organized according to increase in atomic mass.
Dobereiner stated his law of triad as : " airthmatic mean of atomic masses of first and third element would be equal to atomic mass of second element".
The first triad of dobereiner was introduced as : calcium , strontium and barium.
In this triad, the airthmatic mean of calcium and barium is exactly same as that of strontium.
therefore , according to this the properties of middle element lie in between first and third element.
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Answer:
Identified triads of elements with similar properties:
✔ Dobereiner
Organized elements according to increasing atomic mass:
✔ Mendeleev
Explanation:
Ed22
in an insulated vessel, a quantity of hot water at temperature t1 is mixed with a different quantity of cold water at temperature t2 . after equilibrium is established, the vessel contains .
The correct option is (4) Water only.
After equilibrium is established, the vessel contains water only.
What is insulation?Insulation is a material that serves as a barrier between the interior of your home and the considerably variable outside temperature to decrease heat absorption or loss. Heat cannot be added or removed from the vessel since it is insulated; consequently, there is no heat exchange. If hot water and cold water are combined, the final water temperature in the equilibrium vessel will be moderate. Hot water generates the same amount of heat that cold water looses.
By limiting heat movement, insulation ensures optimal housing efficiency. Insulation is mostly used to keep the interior of your home at the proper temperature while consuming less energy.
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The complete question is:
"In an insulated vessel, a quantity of hot water at temperature T1 is mixed with a different quantity of cold water at temperature T2. After equilibrium is established, the vessel contains __________.
1. steam only
2. ice only
3. water and ice
4. water only"
How many atoms does 2 SO₃
Answer:This formula has three types of atoms - nitrogen (N), hydrogen (H) and oxygen (O). There are a total of 4 atoms in one molecule of SO3.
Calculate the mass (mg) of a cube of palladium of edge length 0.055 mm given that the density of palladium
is 12.02 g/cm³
The mass (in mg) of the cube of palladium of edge length 0.055 mm is 0.002 mg
What is density?The density of a substance is simply defined as the mass of the subtance per unit volume of the substance. Mathematically, it can be expressed as
Density = mass / volume
With the above formula, we can obtain the mass of the palladium. Details below
How to determine the mass of the silverEdge length (L) = 0.055 mm = 0.055 / 10 = 0.0055 cmDensity of palladium = 12.02 g/cm³Volume of palladium = L³ = 0.0055³ = 1.66×10⁻⁷ cm³Mass of palladium =?Density = mass / volume
Cross multiply
Mass = Density × Volume
Mass of palladium = 12.02 × 1.66×10⁻⁷
Mass of palladium = 2.0×10⁻⁶ g
Multiply by 1000 to express in milligram (mg)
Mass of palladium = 2.0×10⁻⁶ × 1000
Mass of palladium = 0.002 mg
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After being discredited on the stand in the jackson case, what did gettler do? (poisoner's handbook video notes)
After losing credibility throughout the jackson case trial. To show that only the body is failing, Gettler underwent a number of cyanide tests.
He identified cyanide poisoning as the cause of death using chemical analyses.
What are the forensic test had been done by Gettler ?He examined techniques for identifying human body decomposition by wood alcohol.
He identified cyanide poisoning as the cause of death using chemical analyses.
When arsenic was utilized as a toxin, the Marsh test, a very sensitive method for finding arsenic, is particularly helpful in the field of forensic toxicology. James Marsh, a chemist, created it, and it was first printed in 1836.
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the freezing point of a cyclohexane sample is 6.20 °c. a solution is prepared by dissolving 0.4660 g of anunknown solute in 36.0 g cyclohexane. the freezing point of the resulting solution is 4.11 °c.
The answer of this question is 123.87 g
Here we have to find the molar mass of unknown solvent
Given,
freezing point of cyclohexane sample =6.20°c
freezing point of resulting solution =4.11°c
Delta Temperature(Δt) = kf × molality for finding molality
Moles = grams / molar mass
Molality = moles / kg solvent
In cyclohexane, the mass of mixed solute = 0.4 × 609
Solute mixed in cyclohexane and mixed in cycloheptene= 0.4^2 × 1000 / 36 π
Del Temperature (Δt)= kf × molality
= 2.0920 × 0.4 × 1004 / 36 × 2.09
M = 9320 / 73.29
= 123.87
Molar mass of an unknown solvent = 123.87 grams
so, the answer of this problem is 123.87 g
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Pls hurry and tell the answer.
Is it a, b, c, d
Answer:
D
Explanation:
I have a crush on the same and I
Johnny calculates from an experiment that he has 22.7 g of carbon. However, he should have gotten 21.8 g of carbon which was the actual value for this experiment. Calculate Johnny's percent error and round to the hundreths place.
Johnny's percentage error is calculated as= 41%
Calculation of percentage errorThe quantity of carbon Johnny should have (actual value) = 21.8 g
The quantity of carbon Johnny was able to calculate = 22.7 g
To calculate the percentage error, subtract the actual value from the estimated value. That is,
22.7 - 21.8 g = 0.9 g
This error value obtained is divided by the actual value ( 21.8 g)
0.9 / 21.8 = 0.41
Then multiply by 100%
0.41 × 100.= 41%
Therefore, Johnny's percentage error is calculated as = 41 %
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using the structure of oxazole, draw a mechanism to show protonation of the most basic site in the molecule using hcl as the proton source. draw the products of the proton transfer reaction, including all necessary lone pairs and nonzero formal charges.
A large class of heterocyclic aromatic organic compounds are descended from oxazole. These are azoles, which have one carbon between the oxygen and the nitrogen.
Although less aromatic than thiazoles, oxazole are nonetheless compounds. Since imidazole’s conjugate acid has a pKa of 7, oxazole’s conjugate acid has a pKa of 0.8.
What is the purpose of oxazole?In this study, the most recent research and discoveries on the full spectrum of oxazole compounds as pharmaceuticals—including those with antimicrobial, antifungal, antiviral, antitubercular, anticancer, anti-inflammatory and analgesic properties—were carefully examined.
Why does Oxazole make a poor base?Because nitrogen is more basic than oxygen, protonation occurs at the sp2 orbital of nitrogen in oxazole. Oxazole’s oxygen atom reduces the
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How much water would be displaced if we submerged this book inside a tank of water? The book is 56cm3.
56 ml of water is displaced on submerging a book having volume of 56 cm³.
How to calculate volume of fluid displaced?If a body is considered which is completely submerged, the volume which it will displace will be equal to volume of the body.If it is partially submerged,volume of fluid displaced will be equal to the volume of the part which is submerged.This is in accordance with the Archimedes' principle.
The Archimedes' principle can be stated as the upward buoyant force which is exerted on a body irrespective whether the body is partially or fully submerged is equal to the weight of fluid which is displaced by it.
Thus,56 cm³ of water will be displaced on submerging the book into water as the book will be completely submerged.
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For each carbon bond shown, how many electrons surround each carbon atom.
A) 2
B) 4
C) 6
D) 8
the rate constant for the decomposition of acetaldehyde, ch3cho, to methane, ch4, and carbon monoxide, co, in the gas phase is 1.10 × 10−2 m −1 s−1 at 703.7 k and 4.90 x 10-2 m−1 s−1 at 865 k. determine the activation energy for this decomposition. give your answer in kilojoules per mole and use 3 sig figs in your answer.
The rate constant for the decomposition of acetaldehyde, CH₃CHO, to methane, CH₄, and carbon monoxide, CO, in the gas phase is 1.10 × 10² m⁻¹ s⁻¹ at 703.7 k and 4.90 x 10⁻² m⁻¹ s⁻¹ at 865 k.The activation energy for this decomposition in KJ/mole is 154.303
To determine the activation energy of a reaction (Ea) from two reaction rates (k₁ and k₂) at two different temperatures (T₁ and T₂).
we use the equation -
k₂ = Eₐ x ( 1 - 1 )
k₁ R T₁ T₂
Where,
R is the gas constant (8.3145 J/mol.K).
We have -
k₁= 1.10 x 10⁻² m⁻¹ s⁻¹
T₁= 703.7 K
k₂= 4.90 x 10⁻² m⁻¹ s⁻¹
T₂= 865 K
Putting the values in the equation -
4.90 x 10⁻² m⁻¹ s¹ = Ea x ( 1 - 1 )
1.10 x 10⁻² m⁻¹ s⁻¹ (8.3145 J/K.mol) 703.7 K 865 K
Ea = (4.90 x 10⁻² m⁻¹ s⁻¹) / ( 1 - 1 ) x (8.3145 J/K.mol)
1.10 x 10⁻² m⁻¹ s⁻¹ 703.7 K 851 K
Ea = 154303 J/mol
When divided by 1000,
Ea in KJ/mol = 154.303 KJ/mol
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Mrs. bauer wanted to investigate whether the amount of time students studied for the test would affect their grade on final. what is the independent variable in the experiment?
Answer: amt of time students studied
Explanation:
A student decided not to reweigh his erlenmeyer flask throughout the calibration lab. after a given trial, he shook leftover water out of his erlenmeyer flask by wrist action and assumed the mass of his flask was constant. then, he reused the flask for the next trial and so on. given this information, is this an example of random or systematic error? why?
He decided not to dry his glassware throughout the calibration lab.
Instead, he shook leftover water out of his Erlenmeyer flask by the
wrist action.
This is an example of a random error.
What is the random error?
Random errors also referred to as human error, depending on how well the experimenter is able to conduct the experiment and interpret the data.
Since the results could be either too high or too low, these errors are random.
Random error frequently determines or limits the experiment's precision.
For instance, the random error would be the reaction time if we were timing the revolution of a turntable that was rotating steadily.
A delay in the beginning (an underestimation of the actual result) or a delay in ending would cause a variation in our reaction time (an overestimation of the actual result).
Random errors differ from systematic errors in both magnitude and direction.
However, the average of a set of measured positions can be calculated, and that average is probably more accurate than the majority of the measurements.
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This is an example of a random error.
What is a random error?The term "random error" describes errors that happen when the conditions under which an experiment is conducted change.
A chance discrepancy between an object's true and observed values is known as a random error.
Chance is the cause of the random error.
When the same weight is placed on an electronic scale multiple times, the readings can vary randomly from one reading to the next. This is an example of a random error.
These discrepancies between the readings and the actual weight are due to random errors in the scale's weight measurements.
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Explain or show how you could calculate the mass of an object if you know its volume and density.
Answer:
yea I'm also looking for this question to .
Compare and contrast a solution and a suspension
The difference between a solution and a suspension is in the particle sizes involved. A solution is a mixture of ions or molecules (very, very small). Solutions are transparent, meaning that you can see through them. A suspension has bigger particle sizes and so it may look cloudy or murky
Container "a" holds n2 gas with a mass of 69.8 g and is 4.9 times the volume of container "b" which holds argon (ar) gas at the exact same temperature and pressure. what is the mass of the ar (in g) within container "b"?
By ideal gas approximation, the mass of the Argon gas in container "b" is 488.6 grams.
We need to know about the ideal gas theory to solve this problem. The ideal gas is assumed that there is no interaction between particles in a gas. It can be determined by the equation
P . V = n . R . T
where P is pressure, V is volume, n is the number of moles gas, R is the ideal gas constant (8.31 J/mol.K) and T is temperature.
From the question above, we know that
Molar mass N₂ = Mr N₂ = 28
Molar mass Ar = Mr Ar = 40
m1 = 69.8 gr
V1 = 4.9 V2
P1 = P2 = P
T1 = T2 = T
Approximate that the gas is ideal, hence the ratio is
P1 . V1 / (n1 . R . T1) = P2 . V2 / (n2 . R . T2)
P . V1 / (m1/MrN₂ . R . T) = P . 4.9V1 / (m2/MrAr . R . T)
Mr N₂ / 69.8 = 4.9 . MrAr / m2
28 / 69.8 = 4.9 . 40 / m2
m2 = 488.6 grams
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ph is defined as the negative log10 of the hydrogen ion activity, ah , although general chemistry texts commonly express it in terms of the hydronium ion concentration. thus, ph
pH is defined as the negative log10 of the hydrogen ion activity, although general chemistry texts commonly express it in terms of the hydronium ion the pH is calculated as 3.23.
What is pH?In chemistry, the pH scale is used to define the acidity or basicity of an aqueous solution. Historically, pH stood for "potential of hydrogen."
The pH values of acidic solutions are typically lower than those of basic or alkaline solutions.
It is provided that,
{H3O+} = 5.79 X 10^-4M
We know that pH is basically the negative log10 of the hydrogen ion.
this means,
Thus, pH = -log10[H3O+]
Then putting the value of [H3O+]
pH = -log10 (5.39 x 10^-4)
pH = 3.23
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Complete question
PH is defined as the negative log10 of the hydrogen ion activity, aH+, although general chemistry texts commonly express it in terms of the hydronium ion concentration. Thus, pH = −log10 [H3O+], where [H3O+] represents the concentration of H3O+ in units of moles per liter (M). Calculate the pH or [H3O+], as required, for the following solutions. {H3O+} = 5.79 X 10^-4M
What have scientists learned about the cuttlefish through observation?
Answer:
Explanation: Cuttlefish are often called the chameleons of the ocean; this is due to their striking ability to change color for a variety of reasons. ... Cuttlefish have been recognized as changing color to camouflage themselves from, or to warn off predators, and to interact with other cuttlefish.
an azeotrope is a mixture that has the same composition in the liquid phase than the gas phase . therefore, an azeotropic mixture can be separated by distillation.
An azeotrope is a composition that has the similar components in the liquid phase as compared to the gas phase . therefore, an azeotropic compositions cannot be separated by distillation.
It is not separated by the distillation or fractional process due to the reason of the when the azeotrope mixture is boiled, the gaseous vapor has the similar proportions of constituents or the components as the unboiled mixture.
It can only be separated by azeotropic distillations. This method is also well known by the AD process.
It is a method to break the azeotropes with the help of various mixture of solvent , or separating agent it forms heterogeneous azeotropes.
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Atoms are made up of?
Answer:
Atoms are made up of a nucleus, protons and electrons
Postsynaptic currents produced by ampa glutamate receptors are _______ than those produced by other ionotropic glutamate receptors.
PLEASE HELP ASAP!! GIVING BRAINLIEST!!
1. I believe the answer to the first one is K and K+ are the bigger atom.
2. So I believe Strontium looses 2 electrons
Why are the fabrication processes applied to plastics, ceramics, and composites often different from those applied to metals? what are some of the key differences?