Answers
Compound S (C8H16) reacts with one mole of bromine to form a compound with molecular formula C8H16Br2. Its unsaturation is demonstrated by the fact that S decolorizes bromine.
The atomic number 35 and symbol Br are assigned to the chemical element bromine. At room temperature, it is a flammable red-brown liquid that readily evaporates to form a vapour of a similar hue. It is the third-lightest element in group 17 of the periodic table (halogens). Its properties are halfway between those of chlorine and iodine. It was independently discovered by two chemists, Carl Jacob Löwig (1825) and Antoine Jérôme Balard (1826), and was given the name o (bromos), which in Ancient Greek indicates to its pungent and potent smell. The mineral halide salts, which resemble table salt and are white, soluble, and crystalline, contain the element bromine because of its strong reactivity, which prevents it from occurring naturally as a native element. All halogens, including bromine, are actually so reactive that they can only ever form pairs of bonds with other atoms. Despite being very infrequent in the crust of the Earth, the bromide ion (Br) has accumulated in the oceans due to its high solubility.
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Related Questions
what is atom?????????????
Answers
Answer:
An atom is a particle of matter that uniquely defines achemical element. An atom consists of a central nucleus that is usually surrounded by one or more electrons. ... The nucleus is positively charged, and contains one or more relatively heavy particles known as protons and neutrons. A proton is positively charged.
Answer:
An atom is a particle of matter that uniquely defines achemical element. An atom consists of a central nucleus that is usually surrounded by one or more electrons. ... The nucleus is positively charged, and contains one or more relatively heavy particles known as protons and neutrons. A proton is positively charged.
Step 3.
Drag lone pairs of electrons to each terminal atom until each has an octet of electrons, or until all electrons are used. You may remove a lone pair by clicking on it. Check your answer.
Answers
There is a double bond between the carbon atoms and a lone pair on oxygen.
What is Lewis structure?The term Lewis structure has to do with the structure that shows the arrangement of atoms in a compound. It is normal that the structure would be composed of the symbols of the elements and the bonds that they form as dots or sometimes as a single line to show shared electrons.
Now we can see that the compound C2H2O is a compound that contains a double bond between the carbon atoms. There is a lone pair of electron that resides on the oxygen atom. The structure of this compound is shown in the image attached.
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labeled test dna with cy5 (red) - labeled reference dna on a normal chromosome spread revealed a bright red signal along the short arm of chromosome 3.
Answers
This statement is referring to a laboratory experiment in molecular biology or genetics where DNA has been labeled with the fluorescent dye Cy5, which emits a red signal when excited by light. The experiment has revealed that the labeled DNA (in this case, the test DNA) is present along the short arm of chromosome 3. This information can be used to study the location of specific genes or other genetic elements on the chromosome. The use of the reference DNA allows for the comparison of the test DNA to a known and well-characterized reference, which can provide additional information about the identity and location of the test DNA.
Answer:
This labeling information suggests that the test DNA, which was labeled with the dye Cy5 (red), is present along the short arm of chromosome 3 in the reference DNA sample. The bright red signal indicates a high concentration of the labeled test DNA in that region, which could indicate that the test DNA is interacting with or mapping to that specific location on chromosome 3. This information can be used in various genomic studies, such as genome mapping, gene expression analysis, and chromatin analysis, to better understand the distribution and function of specific DNA sequences in the genome.
Explanation:
Just tell me if you kinda confuse
ALLEN
How many carbon dioxide molecules should be added to the products side to obey the law of conservation of matter?
Your answer:
A.four
B.One
C.three
D.two
Answers
Answer:
four A
Explanation:
Answer: B) One
Explanation: One carbon dioxide molecule should be added to the products side to balance the equation and obey the law of conservation of matter.
Also, just took the test. One is correct.
PLEASE ANSWER QUICKLY!!!!
2KI (aq) + Cl₂(g) → 2KCl(aq) + 1₂(g)
What volume of 12 gas forms when
21 L Cl2 react at STP?
[?] L 12
Answers
The volume of 12 gas forms when 21 L Cl2 react at STP is 21 L.
To determine the volume of 12 gas (I assume you mean I2 gas) formed when 21 L of Cl2 reacts at STP (standard temperature and pressure), we need to use the ideal gas law equation.
The ideal gas law equation is given by:
PV = nRT
Where:
P = pressure
V = volume
n = number of moles
R = ideal gas constant
T = temperature
At STP, the pressure is 1 atm, and the temperature is 273.15 K.
From the balanced equation, we can see that the molar ratio between Cl2 and I2 is 1:1. So, if 21 L of Cl2 reacts, it will produce an equal volume of I2 gas.
Given that the volume of Cl2 is 21 L, we can assume the volume of I2 gas formed will also be 21 L.
Therefore, the volume of I2 gas formed is 21 L.
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space provided. 1. Which of the following species not Amphiprotic? A)HS B)H₂PO4 C) ICO; D) BCL4 ring nor ally has a PH of 6 If a patient climinates 1300ml of urine per day.then how many
Answers
BCL4 is not amphiprotic because it cannot donate or take a proton, hence it cannot behave as an acid or a base that is option D.
What is Amphiprotic?An amphiprotic molecule (or ion) may give or absorb a proton, allowing it to serve as an acid or a base. Amphiprotic species include water, amino acids, hydrogencarbonate ion (or bicarbonate ion) HCO3, dihydrogen phosphate ion H 2PO4, and hydrogensulfate ion (or bisulfate ion) HSO4. Amphiprotic compounds are chemicals that, depending on the circumstances, may both give and receive protons. Amphoteric chemicals, on the other hand, may behave as both an acid and a base. The term amphoteric is a broader term.
Here,
BCL4 is not Amphiprotic as it can neither donate or accept a proton, thus acting neither as an acid or a base that is option D.
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Consider the following reaction:
2CH4(g)⇌C2H2(g)+3H2(g)
The reaction of CH4 is carried out at some temperature with an initial concentration of [CH4]=0.092M. At equilibrium, the concentration of H2 is 0.014 M.
Find the equilibrium constant at this temperature.
Answers
The equilibrium constant at this temperature is Kc= 4.17 x 10⁻⁶.
What is equilibrium?Since the equilibrium constant depends on the equilibrium concentration of both the reactants and the products of the chemical reaction.
Balanced reaction equation
2CH₄(g)⇌C₂H₂(g)+3H₂(g)
The initial concentration of the CH₄ = 0.093 M
The equilibrium concentration of the H = 0.017 M
Equilibrium constant = ?
Let's make the ice table
2CH₄(g) ⇌ C₂H₂(g) + 3H₂(g)
0.093 M 0 0
-2x +x +3x
0.093-2x x 0.017 M
3x = 0.017 M
Therefore, x =0.017 M /3 = 0.00567 M
Therefore, the equilibrium concentration of CH₄ =
0.093 M – 2x = 0.093 M – (2 x 0.00567 M) = 0.0817 M
Equilibrium concentration of the C₂H₄ = x = 0.00567 M
Let's write the equilibrium constant expression
Kc= [C₂H₄[H2]³/[CH₄]²
Let's put the values in the formula
Kc= [0.00567][0.017]³/[0.0817]²
Kc= 4.17 x 10⁻⁶
Therefore, the equilibrium constant is 4.17 x 10⁻⁶.
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At a certain temperature, the equilibrium constant, c,
for this reaction is 53.3.
H2(g)+I2(g)↽−−⇀2HI(g)c=53.3
At this temperature, 0.400 mol H2
and 0.400 mol I2
were placed in a 1.00 L container to react. What concentration of HI
is present at equilibrium?
Answers
At equilibrium, the HI concentration is 2.92 mol/L.
What is the H2 CO2 reaction's equilibrium constant?For the process H2(g)+CO2(g)updownarrow H2O+CO. at 1660 °C, the equilibrium constant KP is 4. In a 5 liter flask, 0.8 moles each of H2 and CO2 are first injected. Reactions occur in the following order with relation to H2: 1. In experiments 1 and 2, the reaction rate doubles when the initial concentration of H2 is doubled while the initial concentration of Cl2 is held constant.
H2(g) + I2(g) ⇌ 2HI(g)
c = [HI]² / [H2][I2]
At the specified temperature, c = 53.3, hence the following can be written:
53.3 = [HI]^2 / (0.400 mol/L) × (0.400 mol/L)
or, [HI]² = 53.3 × 0.16
or, [HI]² = 8.528
or, [HI] = sqrt(8.528) mol/L
or, [HI] = 2.92 mol/L
As a result, 2.92 mol/L of HI are present at equilibrium.
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A 10 mL graduated cylinder has tick marks at 1 mL and 1.1 mL. How many digits after the decimal should a measurement of volume in this cylinder have? A. 3 B. 4 C. 1 D. 2
Answers
d. 2
you can estimate to the hundredths place because it goes from 1 to 1.1.
If the specific gravity of E85 gasohol is 0.801, what is the mass of 1.00 gallon of the E85 fuel. Given 1 gallon=3.785
Answers
The mass of E85 fuel that has a specific gravity of 0.801 is 3032.11grams.
How to calculate mass from specific gravity?The specific gravity is the ratio of the mass of a substance to that of an equal volume of water at 4°C (or to some other reference substance).
The specific gravity is the ratio of the densities of two substances, which is the E85 fuel and water in this case.
The density of water = 1.00 g/cm³
Specific gravity = density of fuel/density of water
0.801 = density of fuel ÷ 1.000
density of fuel = 0.801g/cm³
1 us liquid gallon = 3785.412 cubic centimetres
0.801 = mass ÷ 3785.412
mass = 3032.11grams
Therefore, the mass of E85 fuel that has a specific gravity of 0.801 is 3032.11grams.
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Question 5:
Two liquids A and B, are each poured into seperate 20 mL containers completely filling
them. You weigh both liquids and find that A has a mass of 15 grams and B has a mass
I
of 22.8 grams. When those liquids are put into the same container, one of them will
float on the other. Based on your knowledge of Density, which liquid will float on the
other?
Answers
Answer:
A will float on top of B.
Explanation:
B is more dense. example A is oil and B is water.
Given a 0.200 M solution of anserine at its isoelectric point and ready access to 0.100 M HCl, 0.100 M NaOH and distilled water, describe the preparation of 1 L of 0.0400 M anserine buffered solution, pH 7.20.
Answers
Solution :
Given :
Amount of anserine solution = 0.200 M
pH value is = 7.20
Preparation of 0.04 M solution of anserine from the 0.2 M solution.
0.2 M x \(x\) = 0.04 M x 1000 ml
\(x\) = 200 ml
So the 200 ml of 0.2 M anserine solution is required to prepare0.04 M of anserine.
0.1 M x \(x\) = 0.04 x 1000 ml
\(x\) = 400 ml
Therefore, 400 ml of HCl is needed.
when sodium Cardonate is heated what type of reaction does it form
Answers
Answer:
Thermal Decomposition
Explanation:
A hospital saline solution is analyzed to confirm its concentration. A 50.0 mL sample with a mass of 50.320 g is evaporated to dryness. If the solid sodium chloride residue has a
mass of 0.669 g. what is the mass percent and molar concentration of the saline solution?
Answers
The mass percent of the sodium chloride in the saline solution is approximately 1.33%. The molar concentration of the saline solution is approximately 0.229 M.
To determine the mass percent and molar concentration of the saline solution, we need to analyze the mass of the sodium chloride residue and the initial mass of the sample.
Mass percent:
The mass percent is calculated by dividing the mass of the sodium chloride residue by the initial mass of the sample and then multiplying by 100%.
Mass percent = (Mass of NaCl / Initial mass of sample) × 100%
Mass of NaCl = 0.669 g
Initial mass of sample = 50.320 g
Mass percent = (0.669 g / 50.320 g) × 100% ≈ 1.33%
The mass percent of the sodium chloride in the saline solution is approximately 1.33%.
Molar concentration:
To calculate the molar concentration of the saline solution, we need to determine the number of moles of sodium chloride and the volume of the solution.
Moles of NaCl = Mass of NaCl / Molar mass of NaCl
The molar mass of NaCl is 58.44 g/mol.
Moles of NaCl = 0.669 g / 58.44 g/mol ≈ 0.01144 mol
Since the volume of the sample is given as 50.0 mL, we need to convert it to liters.
Volume of solution = 50.0 mL = 50.0 mL × (1 L / 1000 mL) = 0.0500 L
Now we can calculate the molar concentration (Molarity) using the formula:
Molarity (M) = Moles of solute / Volume of solution (in liters)
Molarity = 0.01144 mol / 0.0500 L ≈ 0.229 M
The molar concentration of the saline solution is approximately 0.229 M.
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Chose the molecular formula that represents an organic molecule.
(A)C6H12O6
(B)NH2
(C)Cu2O
(D)H2O
Answers
team rashta or navier ???
Answers
Answer:
navier
JAJDKEKWNEHSJJXIDJ (i need to do that so i can post the answer haha)
Answer: TEAM NAVIER FOR LIFEEEE
IF U SUPPORT TRASHTA, I HAVE NO WORDS TO DESCIRBE YOU
Which compounds, on heating with an excess of concentrated sulfuric acid, produce only one product with molecular formula C7H10? [choices on the picture]
Answers
Answer:
1 and 2
Explanation:
When Concentrated H2SO4 reacted with the alcohols, they produce cycloalkenes. This is a mechanism known as dehydration of alcohols with an acid catalyst. This is because concentrated H2SO4 acts as a great oxidizing agent. In the process, the alcohols are heated to a high temperature with an excess of pure sulfuric acid. By passing the gases through a sodium hydroxide solution, the carbon dioxide and sulfur dioxide produced by reactive species are eliminated. The reaction mechanism shown in the image below indicates that only compounds 1 and 2 produce only one product.
list the 3 pKa's for H3PO4
Answers
Answer:
The three pKa values for phosphoric acid (H3PO4) are 2.12, 7.21, and 12.32.
3 Cu + 8HNO3-3 Cu(NO3)2 + 2 NO + 4H₂O
In the above equation, how many grams of water can be made when 12.1 moles of HNO3 are
consumed?
Round your answer to the nearest tenth. If you answer is a whole number like 4, report the answer
as 4.0
Use the following molar masses. If you do not use these masses, the computer will mark your
answer incorrect.:
Molar
Mass
Element
Hydrogen 1
Nitrogen 14
Copper 63.5
Oxygen 16
Answers
Explanation:Round your answer to the nearest tenth. If you answer is a whole number like 4, report the answer as 4.0
Use the following molar masses. If you do not use these masses, the computer will mark your answer incorrect.:
Element Molar Mass
Hydrogen 1
Nitrogen 14
Copper 63.5
Oxygen 16
Do molecules move in all phases? (yes/no)
Answers
Answer: sorta
Explanation:
In fact, they do not flow at all: they simply vibrate back and forth. Because the atoms in a solid are so tightly packed, solid matter holds its shape and cannot be easily compressed
Diethyl ether has a ΔHvap of 29.1 kJ/mol and a vapor pressure of 0.703 atm at 25.0°C. What is its vapor pressure at 81.0°C?
Answers
The new Vapor pressure of the dietheylether is 6.52 atm.
What is the vapor pressure?We have to note that the vapor pressure would have to do with the ease with which the substance can be converted from liquid to vapor. In this case we can see that we have about two different temperatures and we are trying to obtain the vapor pressure at each of the temperatures that have been given.
Using the formula;
ln(P2/P1) = -ΔHvap/R(1/T2 - 1/T1)
P2 = final pressure
P1 = initial pressure
ΔHvap = Enthalpy of vaporization
R = constant
T = Temperature
ln(P2/0.703) = -29.1 * 10^3/8.314(1/354 - 1/298)
ln(P2/0.703) = -3651.3(0.0028 - 0.0034)
ln(P2/0.703) = 2.19
(P2/0.703) = e^2.19
P2 = e^2.19 * 0.73
P2 = 6.52 atm
It has a vapor pressure of about 6.52 atm.
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Please help! BRAINLIEST to correct answer!!!!
Answers
Answer:
Exothermic ProcessExplanation:
(a) Describe the process by which Nitrogen is obtained from air on a large scale
Answers
The element nitrogen exists as a gas and is obtained from air on a large scale by fractional distillation of air.
What is an element?An element is defined as a substance which cannot be broken down further into any other substance. Each element is made up of its own type of atom. Due to this reason all elements are different from one another.
Elements can be classified as metals and non-metals. Metals are shiny and conduct electricity and are all solids at room temperature except mercury. Non-metals do not conduct electricity and are mostly gases at room temperature except carbon and sulfur.
The number of protons in the nucleus is the defining property of an element and is related to the atomic number.All atoms with same atomic number are atoms of same element.
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in the presence of strong base, such as sodium hydroxide, d-glucose can epimerize to d-mannose (the c-2 epimer of d-glucose) through d-fructose (a ketose). which of the following intermediates is/are present during the mechanism?a. presentb. not present
Answers
Because the molecules are the same except for the C4 position, D-glucose and D-galactose are epimers. Both structural isomers of glucose and fructose share the chemical formula C6H12O6.
Is mannose a glucose epimer, or not?Mannose is a sugar monomer from the aldohexose group of carbohydrates and a C-2 epimer of glucose. Mannose plays a crucial role in human metabolism, notably in ensuring that native proteins are correctly glycosylated.
They belong to a particular class of stereoisomers that feature several stereocenters but vary from one another based on the arrangement of a single stereogenic center. Mannose and glucose differ from one another in terms of their conformation at the C-2 atom. Consequently, they are epimers.
Epimers of D-glucose include D-mannose and D-galactose.
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Which diagram best illustrates the difference between distance and
displacement?
Answers
Answer:
It is the one that has start and finish and a compass on it...I am sorry I can share images for some reason. And underneath the compass, it says 1.0 Mile. It also has a compass in the bottom right-hand corner.
Explanation:
I just took the quiz and got it correct!
What is the correct formula for Tin (IV) chromate nonahydrate?
Answers
Answer:
Sn(CrO4)2 or Cr2O8Sn
Explanation:
How many moles is equal 82.4 grams of CO,?
Answers
Answer:
1 mole = 28.0101
Hence,
82.4 = around 2.8 mole
Have a great day <3
3.00 L of a gas is collected at 35.0 C and 0.93 atm. What is the volume at STP
Answers
Hope this helped have a great day :)
When converted to a household measurement, 9 kilograms is approximately equal to a) 9000 grams. b) 9000 ounces. 19.8 ounces. d) 19.8 pounds.
Answers
Answer:
D 19.8
Explanation:
1kg in household measurement is equal to 35.274 Oz 35.274*9=317.466 Oz
1 KGS is also equal to 2.205 lbs 9*2.205=19.8416
When converted to a household measurement, 9 kilograms are approximately equal to 19.8 pounds. Therefore, option D is correct.
What is pound ?The British imperial and American customary systems of measurement both utilize the pound as a unit of mass. It is stated that a kilogramme (kg) weighs 2.2 times more than a pound (represented as lbs). As a result, 2.26 pounds equal one kilo of mass.
The pound has strong connections with Britishness, yet it also has roots in continental Europe. Its name, Libra Pondo, which translates as "a pound weight," comes from the Latin word Libra, which means weight or balance.
Approximately 0.45359237 kilogrammes make up one pound (kg). The provided pound value is multiplied by 0.45359237 to convert a pound to kilograms. Additionally, a kilogramme is about equivalent to 2.2046226218 pounds.
1kg in household measurement = 35.274 Oz 35.274 * 9
=317.466 Oz
1 KGS = 2.205 lbs 9 * 2.205
= 19.8416
Thus, option D is correct.
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Which refers to any disturbance that carries energy from one place to another? wave trough motion crest
Answers
Answer:
Wave
Explanation:
Wave refers to any disturbance that carries energy from one place to another.
What is wave?Wave refers to disturbance or variation that occur in a body travelling or in motion which travels from one medium to another by transmitting energy from one location which is the origin to another location without transporting matter.
Therefore, Wave refers to any disturbance that carries energy from one place to another
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