Answers
Answer:0.400 gl
Explanation:
Related Questions
Determine the hybrid orbital of this molecule.
A. sp³d²
B. sp³d
C.sp
D. sp²
Answers
The hybrid orbital of this molecule is B. sp³d
What do sp2 and sp3 hybridizations entail?Trigonal symmetry was used to generate a combination of s and p orbitals, which are kept at 1200. Ethylene (C2H4) sp3 hybridization is an example of sp2 hybridization. To create a novel hybrid orbital known as the sp3 sp3 orbital, one's' orbital and three 'p' orbitals of equal energy are mixed in this type: One of four new comparable orbitals that result from geometrically combining one s orbital and three p orbitals to create a normal tetrahedron's four corners.
Again, we refer to them as sp3 particles because they are made up of a single s orbital and three p orbitals. These degenerate hybrid orbitals are created to offset the s-p transition's energy upward.
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In the naturally occurring D series of ketoses, the carbonyl group is found on carbon number ___________, whereas in aldoses, the carbonyl group is found on carbon number _________.
Answers
Answer:
second carbon atom from the end
end carbon atom
Explanation:
Carbohydrates are naturally occurring organic compounds containing carbon, hydrogen and oxygen. The general molecular formula of Carbohydrates is \(C_x(H_2O)_y\).
Carbohydrates can be classified based on structures,
Carbohydrates with the structure of alkanals (-CHO) are known as aldose while those of the structure of alkanones (C=O) are known as ketose.
In stereochemistry , D series is a kind of configurational arrangement where the hydroxyl group attaches itself to the right hand side.
Thus; in naturally occurring D series of ketoses, the carbonyl group is found on carbon number second carbon atom from the end whereas in aldoses, the carbonyl group is found on carbon number end carbon atom.
14. Identify the type of reaction: Pb + 2 AgCl → 2 Ag+ PbCl2
a. Combination/synthesis
b. Decomposition
c. Double replacement
d. Single replacement
Answers
Which of these compounds is most likely to contain an ionic bond?
O CaCl2
O CHA
SO2
O H2
Answers
Answer:
O CaCl₂
Explanation:
The compound most likely to contain an ionic bond is CaCl₂ because it is the only specie with a metal and non-metal.
The metal here is Ca and non-metal is Cl.
In this bond type, there is a transfer of electrons from the metal to the non-metal. There must be a significant electronegativity difference between the two bodies for this bond to form. The metal Calcium loses two electrons and becomes isoelectronic with argon. Two chlorine non-metal gain one of the electrons each and becomes stable. The electrostatic attraction between the oppositely charged ions results in the ionic bonding.SOS
If you need to keep a drink cold without refrigeration, you must minimize the amount
of _____ energy that moves from the drink to the warmer air around it.
1.kinetic
2.thermal
3.chemical
Answers
Answer:
I think it's thermal, as it is affected by temperature
Is this equation balanced?
Na2SO4 + MgOH -> MgSO4 + NaOH
A) No it’s not balanced. The Na are not balanced.
B) Yes it’s balanced.
C) No it’s not balanced. The Mg atoms are not balanced.
D) No, it’s not balanced. The S atoms are not balanced.
Answers
No it’s not balanced. The Na are not balanced (option A)
Why is the given equation not balance?the given chemical equation is not balanced because It is missing some coefficients to balance the number of atoms on both sides of the equation.
The balanced chemical equation for the reaction is:
Na2SO4 + Mg(OH)2 → MgSO4 + 2NaOH
This equation shows that two molecules of sodium hydroxide (NaOH) are produced for every one molecule of magnesium hydroxide (Mg(OH)2) consumed, and that the number of sodium (Na) atoms is balanced on both sides of the equation.
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please answer right need today not hard
Answers
Answer:
A
Explanation:
how does a chemical equation model a chemical reaction
Answers
Answer:
reactant + reactant = product + product
Explanation:
(pretend = is the arrow)
the reaction is shown in the equation by modelling how the reactants react with eachother to form the products on the other side of the arrow
The scientific name of this organism that means blind?
Answers
Answer:
Caecilian
That means blind.
Explanation:
1. when energy increases, amplitude _________.
increases, decreases, or stays the same.
2. water waves are _________ waves because the wave moves up and down.
transverse or longitudinal.
3. what moves the pieces of salt on top of the speaker when the music is playing? ________
Answers
Answer:
1. decreases
2. Transverse
3. Vibrations
Calculate the concentrations of all species in a 1.17 M NaCH3COO (sodium acetate) solution. The ionization constant for acetic acid is a=1.8×10−5 .
Answers
The concentrations of all species in a 1.17 M NaCH3COO solution is mathematically given as
[Na+] = 1.17 M
[OH-] = 0.00002559 M
[H3O+] = 3.51 x 10-10 M
[CH3COO-] = 1.17 M
[CH3COOH] = 0.00002559 M
What are the concentrations of all species in a 1.17 M NaCH3COO (sodium acetate) solution.?Question Parameters:
1.17 M NaCH3COO (sodium acetate) solution
The ionization constant for acetic acid is a=1.8×10−5.
Generally, the equation for the Chemical Reaction is mathematically given as
NaCH2COO - +H20---><--- CH3COOH+OH-
Therefore
\(Ka=\frac{cH3COOH(OH)}{CH2OO-}\)
\(5.6*10^{-10}=\frac{*x*x}{1.17m-x}\)
x=0.00002559
In conclusion,
Since other species are given by either for x=0.00002559 or the ionization constant
For[CH3COO-]
[CH3COO-]=1.17-0.00002559
[CH3COO-]=1.167m
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What is the pH of a solution with a concentration of 1.0 * 10-4 M?
Answers
Answer: pH = 10
Explanation: First solve for pOH using the equation pOH=-log[OH-] = 4
Then plug the pOH in the equation, pH + pOH =14
then solve for pH. pH =14 - 4 = 10
Answer:
pH= 10
Explanation:
The pH really depends on what your solution is.
For example, if we are assuming that the concentration of 1.0M is of a strong monoprotic acid e.g. HCl, it would be safe to assume that almost all of the 1.0M acid has dissociated into its H+ ion, and its conjugate base. Thus, the pH can be determined by taking the negative log(to base 10), of the concentration.
Inversely, if the solution is of a strong base, the pOH value would be found, assuming the steps above. This pOH value can be used to infer a pH from the formula - pH + pOH = 14 then 14 - 4 = 10
Finally, come the weak acids/bases, which follow the rules above, except as they only partially dissociate, one needs its equilibrium constant to determine its extent of ionisation, to substitute into the negative log. This also is the case for the second, and higher order dissociation of polyprotic acids e.g. H2SO4.the answer is 10
Hope it helps
Define exothermic and endothermic. What are the mathematical signs of the internal energy and enthalpy when a process is exothermic?
Answers
Exothermic refers to chemical interactions that aerobic respiration. Combustion reactions release higher energy. Endothermic refers to atoms and molecules that either use or absorb reactive power.
What is an exothermic explanation?A chemical process known as an endothermic releases energy as heat or light. It is an endothermic reaction's opposite. Chemical equation expressed as reactants + products + energy. An reaction mechanism is one in which electricity is given off as light or warmth.
Exothermic example: What is it?A response is deemed to be exothermic if it produces heat while also undergoing a net decrease in basic enthalpy change. Samples include those type of combustion, iron rust, including water froze. Exothermic processes are those that discharge heat and energy into the surroundings.
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What is the speed of an electromagnetic wave that has a wavelength of 8.6 x 10-5 m?
Answers
Answer:
The speed of the given electromagnetic wave is 3 x 10⁸ m/s.
Explanation:
Electromagnetic wave is a type of energy that is commonly known as light energy. The speed of light in air is about 3 x 10⁸ meters per second (m/s).
All electromagnetic waves travel at the same speed which is equal to speed of light, approximately 3 x 10⁸ meters per second (m/s) through a vacuum or air.
Therefore, the speed of the given electromagnetic wave is 3 x 10⁸ m/s.
What is the empirical formula of a compound that is 14.3% Nitrogen, 4.1% Hydrogen, and 81.6% Bromine?
Answers
The empirical formula of the compound with 14.3% Nitrogen, 4.1% Hydrogen, and 81.6% Bromine would be \(NH_4Br\).
Empirical formula calculationThe compound contains 3 atoms of different elements according to the following percentage:
Nitrogen (N) = 14.3%Hydrogen (H) = 4.1%Bromine (Br) = 81.6%Let's find the mole equivalent of each percentage:
Nitrogen = 14.3/14 = 1.02Hydrogen = 4.1/1 = 4.1 Bromine = 81.6/80 = 1.02Divide by the smallest mole:
Nitrogen = 1.02/1.02 = 1Hydrogen = 4.1/1.02 = 4Bromine = 1.02/1.02 = 1Thus, the empirical formula of the compound is \(NH_4Br\).
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According to one acid- base theory, an acid is an?
Answers
Answer:
however it is not a good idea to get a from a ha of the same type
A negative ion is known as a(n) *
ionic radius.
valence electron.
cation.
anion.
Answers
Answer:
Positively charged ions are called cations; negatively charged ions, anions
How many atom of oxygen are in 2mole of O2
Answers
Answer:
12.044 × 10²³ atoms of oxygen
Explanation:
Given data:
Number of atoms of oxygen = ?
Moles of oxygen = 2 mol
Solution:
Avogadro number:
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance. The number 6.022 × 10²³ is called Avogadro number.
1 mole = 6.022 × 10²³ atoms of oxygen
2 mole × 6.022 × 10²³ atoms of oxygen / 1 mole
12.044 × 10²³ atoms of oxygen
The combustion of octane, C8H18, proceeds according to the reaction shown.
2C8H18(l)+25O2(g)⟶16CO2(g)+18H2O(l)
If 354 mol of octane combusts, what volume of carbon dioxide is produced at 15.0 ∘C
and 0.995 atm?
Answers
The concept ideal gas equation is used here to determine the volume of the carbondioxide. Combustion reactions are generally highly exothermic reactions. The volume of CO₂ is
A combustion is a chemical reaction in which a fuel undergoes oxidation as a result of the reaction with an oxidizing agent which causes the release of energy in the form of heat.
15.0 °C = 288 K
The ideal gas equation is:
PV = nRT
V = nRT / P
V = 354 × 0.0821 × 288 / 0.995 = 8412.3 L
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What man came up with the focus of aw of molecules
Answers
Answer:
The law is named after Amedeo Avogadro who, in 1812, hypothesized that two given samples of an ideal gas, of the same volume and at the same temperature and pressure, contain the same number of molecules.
Explanation:
The density of titanium is 4.50 g/cm3 . What is the edge length (in cm ) of a titanium cube that contains 2.23×1024 titanium atoms? Express your answer to three significant figures.
Answers
Answer:
3.37 cm
Step-by-step:
The edge length of the titanium cube can be calculated using the formula:
Edge length = (Volume of cube)^(1/3)
And the volume of the cube can be calculated as follows:
1. Calculate the mass of the titanium atoms in the cube.
The mass of one titanium atom can be calculated by dividing the molar mass of titanium by Avogadro's number:
Mass of one titanium atom = Molar mass of titanium / Avogadro's number
= 47.867 g/mol / (6.022 × 10^23 atoms/mol)
= 7.943 × 10^-23 g/atom
The total mass of the titanium atoms in the cube is then:
Total mass of titanium atoms = (2.23 × 10^24 atoms) × (7.943 × 10^-23 g/atom)
= 1.773 × 10^2 g
2. Calculate the volume of the titanium cube.
The volume of the cube can be calculated by dividing the total mass of the titanium atoms by the density of titanium:
Volume of cube = Total mass of titanium atoms / Density of titanium
= 1.773 × 10^2 g / 4.50 g/cm^3
= 39.4 cm^3
3. Calculate the edge length of the titanium cube.
Finally, the edge length of the cube can be calculated as:
Edge length = (Volume of cube)^(1/3)
= (39.4 cm^3)^(1/3)
= 3.37 cm
So the edge length of the titanium cube is 3.37 cm, rounded to three significant figures.
Hope this helps!
how many grams in 23.4 moles of H₂PO4?
1202
SUSID
sing
bode
Answers
therefore, 23.4 x 97 = 2269.8g
what type of reacion is NO2 + H2O → HNO3
Answers
Answer:
acid base reaction cuz no is base and h2o is none and hno3
what are the part of mosses
don't copy this
Transfer cells have convoluted cell walls that increase surface area for nutrient exchange. In most mosses the sporophyte will have these anatomical features: a foot, seta, a sporangium with a columella, spores, an operculum, peristome teeth, and a calyptra.
Answers
Answer:
Mosses lack true roots, but they do have grasping, rootlike structures called rhizoids. The aboveground parts can be delineated into two sections: the gametophyte and the sporophyte. The gametophyte is the base of the moss, with a stem and a soft cluster of leaves
You pour some hot water into a metal cup. After a minute,
you notice that the handle of the cup has become hot.
Explain, using your knowledge of heat transfer, why the
handle of the cup heats up. How would you design the cup so
that the handle does not heat up?
Answers
Heat transfer is the movement of thermal energy from a temperature that is higher to one that is lower.
Thermoenergy: What is it?The energy that exists in a system and controls its temperature is known as thermal energy. Heat is thermal energy in motion. Thermodynamics is a comprehensive field of physics that examines how heat and work are transferred between diverse systems.
Energy of what kind is thermal energy?The energy that results from atoms and molecules moving around within a substance is known as thermal energy, often known as heat. When these particles move more quickly, heat is produced. Geothermal energy is the earth's heat energy. Energy held within motion is referred to as motion energy.
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A gas is under a pressure of 760torr and occupies volume of 525cm3. If the pressure is doubled, what volume would gas now occupy? Assume the temperature is constant?
Answers
262. 5cm3.
using the Boyles law formula. p1v1=p2v2
P1=760torr.
v1=525cm³
p2=760×2=1520torr.
v2=?
p1v1=p2v2
760×525=1520×v2
v2=[ 760×525]÷1520
v2= 262.5cm³
when the pressure increases, the volume decreases.
Use the following data to answer the questions below. Assume 9.045 g of stearic acid, and
1.327 g of unknown for the mixture runs 4-6. Assume the k, is 4.50°C kg/mole. Assume
the uncertainty is ±1 in the last digit (±0.001 g for the masses and ±0.01 for kr).
Run 1:
Solvent
T/solvent = 68.9 ± 0.2°C
T/solvent = 69.0 ± 0.2°C
Run 2:
Solvent
Run 3:
Solvent
Tsolvent 67.8 ± 0.2°C
Run 4:
Mixture ~2 g
T2g = 64.6 ± 0.3°C
Run 5:
Mixture ~2 g
T2g = 64.3 ± 0.3°C
Run 6:
Mixture ~2 g
T2g = 64.7 ± 0.3°C
In groups, create a flow chart below including the equations required to process the
raw data into molar mass for the runs given. Indicate when values are averaged and
ATS are determined.
Answers
In order to arrange candidates for recruiting and recruitment purposes, businesses use applicant tracking systems (ATS).
What formula is used for ATS?The allocation, presale backorder allocation, turnover, and (optional) on order quantity are added together to form the average transaction price (ATS), which is then decreased. It's equivalent by default to the quantity of a product that is allotted for sale (the allocation value).In order to arrange candidates for recruiting and recruitment purposes, businesses use applicant tracking systems (ATS). With the help of these tools, organizations may gather data, classify prospects according to their experience and skill set, and screen candidates.A candidate's progress through the hiring and recruiting process can be followed by recruiters and employers using an application tracking system (ATS).The complete question is,
What do ATSs serve as their primary function?
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Calculating Standard Product ATS, The allocation, presale backorder allocation, turnover, and (optional) on order quantity are added together to form the ATS.
How is ATS determined?
Calculating Standard Product ATS, The allocation, presale backorder allocation, turnover, and (optional) on order quantity are added together to form the ATS. It's equal to the quantity of a product that is reserved for sale by default (the allocation value).
Repeating measurements is the best technique to determine the degree of uncertainty surrounding a set of data.
Mixture ~2 g
T2g = 64.7 ± 0.3°C
Cot 2g 6 e g o
Since all the electrons in t 2g are coupled up, the ligand must have a strong field, and that ligand is oxalate (C 2 O 4).
2−
[Co(C 2 O 4 ) 3] is the name of the substance.
3+
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QUESTION 8 1 POINT
Which of the following statements does not accurately describe the precision of a measurement?
Select the correct answer below:
The precision is a measure of the spread of expected values for a given measurement.
The precision describes the closeness of replicate measurements of the same property.
The precision can be quantified as the standard deviation of a set of data.
The trueness is a measure of how close a measurement is to an accepted value.
Answers
The statements 'The precision is a measure of the spread of expected values for a given measurement .' does not accurately describe the precision of a measurement .
Precision refers to how close measurements of the same item are to each other . Precision is independent of accuracy . That means it is possible to be very precise but not very accurate, and it is also possible to be accurate without being precise . The best quality scientific observations are both accurate and precise .
It is also define in one term as the quality or state of being precise .
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A sample of helium gas at 72.0 degrees C and 1.18 atm has a volume of 1.893 L. Calculate the pressure of the helium when the volume of the sample is 1.234 L at standard temperature?
Answers
Answer:
.....
Explanation:
D0wnload Phot0Math......................
Which area of chemistry best links the use of titanium and plastics in artificial bone and joint replacements?
A) environmental chemistry
B) materials chemistry
C) agricultural chemistry
D) physical chemistry
Answers
Answer:I think it’s material chemistry
Explanation:
Answer:
Material chemistry.
Explanation:
Artificial bone and joint replacements is not environmental, it does not have anything to do with farming or such things, and physical chemistry has to do with chemical reactions which is not going on. This leaves materials chemistry.