Answer:
Alcohols are usually named by the first procedure and are designated by an -ol suffix, as in ethanol, CH3CH2OH (note that a locator number is unnecessary on a two-carbon chain). On longer chains the location of the hydroxyl group determines chain numbering. For example: (CH3)2C=CHCH(OH)CH3 is 4-methyl-3-penten-2-ol.10
Explanation:
Answer:
ethanol formula :C2H5Oh
Applicable in case of strong acid–
(i) gets completely ionized in aqueous solutions
(ii) gives H+ ion in aqueous solution
(iii) sour in taste
Which one is correct?
A
i, ii, iii
B
i, ii
C
ii, iii
D
i, iii
Answer:
A. i, ii, iii
Explanation:
A strong acid gets completely ionized in aqueous solutions releasing a large number of hydrogen ions. It also has a sour taste.
What determines the strength of a dipole dipole force?
Answer:
The more polar the molecules, the stronger the force. The more hydrogen in the molecule, the stronger the force.
Explanation:
I hope this helps and please ask if you need further help!
2. Which equation does not represent a neutralisation reaction?
HELP PLEASE
Answer:
Zn + 2HCl => ZnCl2 + H2
Explanation:
This equation represents salt formation or salt preparation. Thus not a neutralization reaction.
An aqueous sodium acetate, NaC2H3O2 , solution is made by dissolving 0.395 mol NaC2H3O2 in 0.505 kg of water. Calculate the molality of the solution.
Answer: The molality of [tex]NaC_2H_3O_2[/tex] solution is 0.782 m
Explanation:
Molality is defined as the amount of solute expressed in the number of moles present per kilogram of solvent. The units of molarity are mol/kg. The formula used to calculate molality:
[tex]\text{Molality of solution}=\frac{\text{Moles of solute}}{\text{Mass of solvent (in kg)}}[/tex] .....(1)
Given values:
Moles of [tex]NaC_2H_3O_2[/tex] = 0.395 mol
Mass of solvent (water) = 0.505 kg
Putting values in equation 1, we get:
[tex]\text{Molality of }NaC_2H_3O_2=\frac{0.395mol}{0.505kg}\\\\\text{Molality of }NaC_2H_3O_2=0.782m[/tex]
Hence, the molality of [tex]NaC_2H_3O_2[/tex] solution is 0.782 m
What kind of bonds are hydrogen bonds???
A. An intramolecular covalent bond in the H2 molecule
B. Polar covalent bonds that form between hydrogen and another atom
C. Any bond between hydrogen and a highly electronegative atom
D. Strong polar attractions between molecules involving H,F,O, and N
Hydrogen bonding is a special type of dipole-dipole attraction between molecules, not a covalent bond to a hydrogen atom. It results from the attractive force between a hydrogen atom covalently bonded to a very electronegative atom such as a N, O, or F atom and another very electronegative atom.
What is the predicted change in the boiling point of water when 2.10 g of
barium chloride (BaCl2) is dissolved in 5.50 kg of water?
The addition of any non-volatile solutes will elevate the boiling point of the solution. The change in boiling point of water by the addition of 2.10 of barium chloride is 0.0028 ° C. Hence, option A is correct.
What is boiling point?Boiling point of a substance is the temperature at which it changes from liquid to vapour where the two states are in equilibrium. Boiling point of a substance depends on the bond type, molecular mass and purity of it.
The change or elevation of boiling point of a solution can be determined from its molality m and elevation constant Kb and the Van't Hoff factor i as follows:
ΔT = i Kb m.
Molality of the solution is the no.of moles divided by the mass of solvent in kilogram. Given the mass of barium chloride is 2.10 g and its molar mass is 208.23 g . The no.of moles of solute is 2.10/208.23 g = 0.0100.
Molality of the solution can be calculated as follows:
Molality m = 0.0100 / 5.50 Kg
= 0.0018 mol/kg.
Now, the ΔT s calculated from these values. Provided Kb of water is 0.51 ° C /mol and i = 3.
ΔT = 0.0018 mol/kg × 0.51 × 3
= 0.0028 ° C.
Therefore, water will boil at 100.0028 ° C. Hence, option A is correct.
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Difference between
Atom and molecule
Answer:
Atoms are single neutral particles. Molecules are neutral particles made of two or more atoms bonded together.
Explanation:
its on safari ??????????
what do you mean by chemical reaction
Answer:
Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products.
A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.
Chemical reactions are an integral part of technology, of culture, and indeed of life itself. Burning fuels, smelting iron, making glass and pottery, brewing beer, and making wine and cheese are among many examples of activities incorporating chemical reactions that have been known and used for thousands of years. Chemical reactions abound in the geology of Earth, in the atmosphere and oceans, and in a vast array of complicated processes that occur in all living systems.
Explanation:
hope it help
plss brainlys me
Answer:
Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products
Explanation:
Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.
4. How much heat required to convert (heat up) 16 gm of ice to 125°C of steam
Cice = 2.03 J/gm.°C,
L = 2.264 J/gm
Cwater = 4.184 J/gm.°C
4 = 0.334 J/gm
Csteam = 1.996 J/gm.°C
Answer: it requires the amount of heat that it takes to make it steam
Explanation:
CHEMISTRY HW... DUE in 2.5 hours! HELP!!!!
Answer:
The final temperature aluminium-water system is 24° C
Explanation:
Heat energy, H = mcθ
Where m is mass of substance, c is specific heat capacity, θ is temperature difference
Using the principle, Heat lost = Heat gained
Let the final temperature of the aluminium-water system be Tfinal
Heat lost by aluminium, H₁ = -m₁c₁(Tfinal - 40)
Heat gained by water, H₂ = m₂c₂(Tfinal -21)
Heat lost by aluminium, H = -[30 × 0.21 × (Tfinal - 40)]
H₁ = -6.3Tfinal + 252
Heat gained by water, H₂ = 50 × 1.0 × (Tfinal - 21)
H₂ = 5Tfinal - 21
Equating H₁ and H₂
-6.3Tfinal + 252 = 5 Tfinal - 21
5Tfinal + 6.3Ffinal = 252 + 21
11.3 Tfinal = 273
Tfinal = 273/11.3
Tfinal = 24° C
Therefore, the final temperature aluminium-water system is 24° C
Use the periodic table to determine the electron configuration for aluminum (AI) and arsenic (As) in
noble-gas notation
AL
o [Ar]3s23p!
lo (He]2s22p63s23p!
0 [Ne]3s23p!
0 [Ne]3s23p2
DONE
Answer:
Aluminum; [Ne]3s²3p¹
Arsenic; [Ar]3d¹⁰4s²4p³
Explanation:
Aluminum
From the periodic table, we have that aluminum, Al, is located in period 3, and group 3A of the periodic table
Therefore, the noble gas that comes before aluminum in the periodic table is neon Ne
The electronic configuration of aluminum is 1s²2s²2p⁶3s²3p¹
The electronic configuration of neon is 1s²2s²2p⁶
Therefore, the electronic configuration of aluminum in noble gas notation (Ne) is therefore;
[Ne]3s²3p¹
Arsenic
Arsenic is located after argon, Ar on the periodic table
The electronic configuration of arsenic is 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p³
The electronic configuration of argon is 1s²2s²2p⁶3s²3p⁶
The electronic configuration of arsenic in noble gas notation (Ar) is given as follows;
[Ar]3d¹⁰4s²4p³
which element is most reactive among aluminium, boron, calcium and beryllium? Give reason.
Answer:
Well, if you check the reactivity series, calcium is more reactive than magnesium. This means there's a a trend of increasing reactivity as we go down the group. As beryllium is above magnesium, it must be the least reactive. Then magnesium is in the middle and the most reactive has to be calcium.
Answer:
Aluminium because highl elecronegativety element and more metalic hign melting and boling point from the other
What characterizes an Arrhenius acid-base reaction?
O A. It forms a conjugate pair.
O B. It forms a salt and water.
O C. It forms hydrogen gas.
OD. It forms a buffer in water.
An Arrhenius acid-base reaction forms a salt and water.
Arrhenius acid base reaction forms a salt and water.
Hence, option (B) is correct answer.
What is Arrhenius acid-base reaction ?Arrhenius acid-base reaction is Arrhenius acid + Arrhenius Base means water + salt. When Arrhenius acid reacts with Arrhenius base it produce water and salt as product. This is known as neutralization reaction.
Thus, from the above conclusion we can say that Arrhenius acid base reaction forms a salt and water.
Hence, option (B) is correct answer.
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The study of the interaction of electrical and magnetic fields, and their interaction with matter, is called _____.
electromagnetism
superconductivity
relativity
magnetism
Answer:
The study of the interaction of electrical and magnetic fields, and their interaction with matter, is called Electromagnetism
32. Calculate the pH of a solution at 1.00 x 10- MIH") and identify the substance as an acid or base,
Answer:
[tex]{ \boxed{ \tt{formular : pH = - log[H {}^{ + } ]}}} \\ pH = - log(1.00 \times {10}^{-6} ) = 6: it's an acid\\ since \: we \: lack \: the \: exponent, \: this \: question \: is \: unsolvable \\ { \green{ \bf{take \: note}}} :{ \tt{pH \: below \: 7 \: that \: is \: { \red{acidic}}. \: \: pH \: greater \: than \: 7 \: is \: { \red {basic}}}}[/tex]
Silicon is in the same group of the Periodic Table as carbon. The compound
formed between silicon and hydrogen is likely to have the formula
SiHz
SiH
SizH:
SizHs
Please hurry
Answer:
SiH
Explanation:
The symbol for Silicon is Si, and the symbol for Hydrogen is H. There is no need for extra characters in the name.
The solution of sugar at 60.0 degrees celcuis is 290.0 g/ 100 g water. If you add 100.0 g of sugar to 25 g of water at 60.0 degrees celcuis will the sugar dissolve?
Answer:
you will produce a saturated solution, At 0 degrees Celsius, sugar is claimed to dissolve 180 grams in 100 grams of water. This means that if you dissolve that much sugar in 100 g of water, you'll get a saturated solution.
Explanation:
The correct answer for the given question about Saturated solution is only 72.5 gram will get dissolved and rest which is 27.5 gram will remain undissolved.
How to apply concept of Saturated solution to solve this question?In question it is given that at 60° C 290 gram of sugar in 100 gram of water produce saturated solution.
So at 60° C 290/100 gram of sugar in 1 gram of water will produce saturated solution.
Hence we can say that at 60° C (290/100)×25 gram of sugar in 25 gram of water will produce saturated solution.
means at 60° C 72.5 gram of sugar in 25 gram of water will produce saturated solution.
Now, adding 100 gram of sugar in 25 gram of water.
Since you can only hope to dissolve 72.5 gram at 60°,
Hence the resulting solution will contain undissolved sugar.
So only 72.5 gram will get dissolved and rest which is 27.5 gram will remain undissolved.
Thus, We can conclude that Only 72.5 grams of sugar will dissolve, leaving the remaining sugar of 27.5 grams undissolved.
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What similarities are there between Beta Radiation and Alpha Radiation
The largest particle, Alpha, has the least penetrative power. Positive charge is carried by alpha particles. Two neutrons and two protons are bound together to form an alpha particle. The helium-4 nucleus was later identified as the alpha particle. Among the three types of radioactive emissions, alpha particles have the most mass. An alpha particle has approximately 8000 times the mass of a beta particle. The penetrative power of an alpha particle is reduced due to its large size.
Beta particles are negative-charged high-energy electrons or positrons. Beta particles have a higher penetrative power than alpha particles due to their smaller size.
Hope this helps and if it does, don't be afraid to give my answer a "Thanks" and maybe a Brainliest if it's correct?
what are some ways you would expect people and things to be affected by an earthquake that moved the ground that much?
Answer:
Some of the common impacts of earthquakes include structural damage to buildings, fires, damage to bridges and highways, initiation of slope failures, liquefaction, and tsunami.
Which coefficients correctly balance the formula equation below?
AgNO3 + CuCl2 → AgCl + Cu(NO3)2
2, 1, 2,1
1, 1, 3,1
2, 2, 3,1
2, 1, 1,2
Answer:
2, 1, 2,1
Explanation:
The chemical equation of the reaction given in this question is as follows:
AgNO3 + CuCl2 → AgCl + Cu(NO3)2
The reaction is between silver nitrate (AgNO3) and copper (I) chloride (CuCl2) to form silver chloride (AgCl) and copper nitrate (Cu(NO3)2.
However, this above equation is not BALANCED because the number of atoms of each element on both sides of the equation does not equate i.e. are not the same. To balance the equation, we have to make use of COEFFICIENTS, which are numbers used in front of each element in order to balance the equation.
The balanced equation is as follows:
2AgNO3 + CuCl2 → 2AgCl + Cu(NO3)2
From the above balanced equation, we can observe that coefficients used to balance the equation is in the order: 2, 1, 2,1
Assuming the volume is constant, if a gas has an
initial pressure of 84.0 kPa at 30.0°C, what would
the new pressure be at 240.0°C? (Round to the
nearest whole number)
kPa
DONE
1) Intro
2 of 3
Answer:
672kP
Explanation:
Equate the initial pressure with respect the first temperature. The unknown pressure to the second temperature and you cross multiply
Answer: 142kPa.
Explanation:got it right on edge 2020
Performance Task #4.3
If you will cross a parent with black eye color (BB) and the other is
brown eye (bb), what will be the color of the eyes of their offspring?
BB
b
b
Ex. Rr - Round
Ir - oblong
Genotypic Ratio:
BB
bb-
%
R
rrr
rr
Phenotypic Ratio:
%
Rr
re
Genotypic Ratio:
50% Rr
Bb
b
b
50% IT
Phenotypic Ratio: 50% round
50% oblong
Bb -
bb-
Genotypic Ratio:
%
%
Phenotypic Ratio:
(continuation at the back)
%
I need answers pls, help me brainliest ko po maka ans ng tama, report nonsense thanks.
Answer:
The offspring are all black eye colored.
Explanation:
Since we have genes BB for black eye color and genes bb for brown eye color, crossing the genes, the resulting genotypes in the offspring is Bb, Bb, Bb and Bb. We note that all the genes have the dominant B gene. Since the black eye color dominant gene is present in all the offspring, the offspring are thus all black-eye colored.
So, If you will cross a parent with black eye color (BB) and the other is
brown eye (bb), the offspring are all black eye colored.
Nitrogen makes up what part of the air?
3/5
2/5
4/5
About 4/5.
Hope this helps.
Answer: c
Explanation:
2 moléculas de clorato de potasio (KClO3) forman 2 moléculas de cloruro de potasio (KCl) y 3 moléculas de oxígeno (O2
The complete question is as follows: 2 molecules of potassium chlorate (KClO3) form 2 molecules of potassium chloride (KCl) and 3 molecules of oxygen (O2). Write a balanced equation for this reaction?
Answer: The balanced chemical equation is [tex]2KClO_{3} \rightarrow 2KCl + 3O_{2}[/tex].
Explanation:
A balanced equation is defined as the equation which contains same number of atoms on both reactant and product side when a chemical reaction occurs.
Hence, when 2 molecules of potassium chlorate [tex](KClO_{3})[/tex] form 2 molecules of potassium chloride (KCl) and 3 molecules of oxygen [tex](O_{2})[/tex] then its balanced equation will be as follows.
[tex]2KClO_{3} \rightarrow 2KCl + 3O_{2}[/tex]
Here, number of atoms on the reactant side as as follows.
K = 2Cl = 2O = 6Number of atoms on the product side are as follows.
K = 2Cl = 2O = 6Since, the number of atoms on reactant side are equal to the number of atoms on product side. So, this reaction equation is balanced.
Thus, we can conclude that the balanced chemical equation is [tex]2KClO_{3} \rightarrow 2KCl + 3O_{2}[/tex].
(20 points and excuse any offensive or seemingly bad language in this question) Budding and regeneration are two types of asexual reproduction.
Answer: true
Asexual reproduction is the process by which an organism is produced from a single parent cell. There are four major forms of asexual reproduction - budding, binary fission, regeneration and parthenogenesis. ... Regeneration is a type of asexual reproduction in which the organism is capable of regrowing certain body parts.
Explanation:
id k what u r talking abt but hope this helps
PCl5 <-> PCl3 + Cl2
PCl5 decomposes into PCl3 and Cl2 according to the equation above. A pure sample of Pcl5 is placed in a rigid, evacuated 1.00 L container. The initial pressure of the PCl5 is 1.00 atm. The temperature is held constant until the PCl5 reaches equilibrium with its decomposition products. The figures below shows the initial and equilibrium conditions of the system.
As the reaction progresses toward equilibrium, the rate of the forward reaction
A) increases until it becomes the same as the reverse reaction rate at equilibrium
B) stays constant before and after equilibrium is reached
C) decreases to become a constant nonzero rate at equilibrium
D) decreases to become zero at equilibrium
Answer:
PCl5 <-> PCl3 + Cl2
PCl5 decomposes into PCl3 and Cl2 according to the equation above. A pure sample of Pcl5 is placed in a rigid, evacuated 1.00 L container. The initial pressure of the PCl5 is 1.00 atm. The temperature is held constant until the PCl5 reaches equilibrium with its decomposition products. The figures below show the initial and equilibrium conditions of the system.
As the reaction progresses toward equilibrium, the rate of the forward reaction
A) increases until it becomes the same as the reverse reaction rate at equilibrium
B) stays constant before and after equilibrium is reached
C) decreases to become a constant nonzero rate at equilibrium
D) decreases to become zero at equilibrium
Explanation:
At equilibrium, both forward and backward reactions take place with constant speed.
The reaction will never cease.
Due to this reason chemical equilibrium is called dynamic in nature.
At equilibrium:
the rate of forward reaction = rate of backward reaction
As the reaction progresses toward equilibrium, the rate of the forward reaction decreases to become a constant nonzero rate at equilibrium.
Answer is option C).
When a system is in a state of chemical equilibrium, neither the reactant concentration nor the product concentration changes over time, nor does the system exhibit any further changes in its attributes. Here the correct option is C.
The system reaches a condition of chemical equilibrium when the rate of the forward reaction equals the rate of the reverse reaction. The system is considered to be in a state of dynamic equilibrium when the concentrations of the reactants and products do not change further as a result of the equal rates of the forward and reverse processes.
Equilibrium is impacted by a number of variables, including temperature, pressure, and the system's concentration. Here at equilibrium the rate of the forward reaction decreases to become a constant nonzero rate at equilibrium.
Thus the correct option is C.
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the electrolyte does not need heating to keep it in its molten state; why?
Answer:
Because an electrolyte already has mobile molecules.
Magnesium lon has less electrons than its atom
True
False
PLEASE HELP!!!
The options are:
A. Nitrogen.
B. Neon.
C. Hydrogen chloride.
D. Sulfur dioxide.
Answer:
Hydrogen Chloride
Explanation:
They will be able to dissolve quicker than the rest
Answer:
C. Hydrogen chloride.
Explanation:
Hydrogen chloride gas will diffuse most quickly.
Hope it is helpful....Which functional group does the molecule below have?
H H H H
H-Ċ-Ċ-Ċ-Ċ-0-H
| | | |
н ннн
O A. Amino
O B. Ester
O C. Ether
O D. Hydroxy
