Answer: [tex]I_{2} (l)[/tex]
Explanation: Because C 6 H 6 is nonpolar substance and I 2 is also nonpolar compound
According to the concept of solubility,iodine will form a solution when mixed with liquid benzene as both are non-polar substances.
What is solubility?Solubility is defined as the ability of a substance which is basically solute to form a solution with another substance. There is an extent to which a substance is soluble in a particular solvent. This is generally measured as the concentration of a solute present in a saturated solution.
The solubility mainly depends on the composition of solute and solvent ,its pH and presence of other dissolved substance. It is also dependent on temperature and pressure which is maintained.Concept of solubility is not valid for chemical reactions which are irreversible. The dependency of solubility on various factors is due to interactions between the particles, molecule or ions.
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5.6 × 1012 / 3.5 × 109 = A × 10B
Answer:
B= 17649.28/A
Explanation:
I NEED HELP PLEASE, THANKS! :)
Respiration is a three-step process that breaks down glucose and produces ATP. What are those three steps? Explain.
Answer:
Ok so the first step is glycolysis(which involves 10 different 'steps') which is conducted in the cytosol, so this is where glucose breaks down into two molecules of pyruvate.
The breakdown of glucose releases energy which changes ADP to ATP and NAD+ to NADH.
The second step is commonly known as the Krebs Cycle or Citric Acid Cycle(involves 11 steps). This is where pyruvate is broken down into 3CO2.
The breakdown of pyruvate releases energy which changes ADP to ATP, NAD+ to NADH and FAD+ to FADH2
The third step is known as oxidative phosphorylation, this is where energy from NADH and FADH2 is used to generate a H+ gradient, which changes ADP to ATP.
Answer:
Glycolysis, Citric Acid Cycle, and the Electron Transport Chain
Explanation:
Cellular respiration is the process in which cells break down glucose and release the stored energy to make ATP.
Step 1 — Glycolysis
Glycolysis is the conversion of glucose — a C₆ molecule — into two C₃ (pyruvate) fragments.
Step 1a. The linking reaction — pyruvate oxidation
In preparation for the second step, each pyruvate ion loses a carbon atom as CO₂ and forms a two-carbon acetyl group.
The acetyl group is transferred to Coenzyme A to produce acetyl CoA.
Step 2 — the Citric Acid Cycle (CAC)
The acetyl CoA enters the CAC.
In various redox reactions, the C atoms in the acetyl group are oxidized to CO₂.
The electrons are passed to energy-storing molecules like NADH and FADH₂.
3. Step 3 — the Electron Transport Chain (ETC)
The NADH and FADH₂ pass their electrons to the Electron Transport Chain
In a series of redox reactions, the electrons reduce oxygen to water.
The energy released converts ADP to ATP (oxidative phosphorylation)
The whole purpose of respiration is to oxidize glucose to CO₂ and water and use the energy produced to form ATP.
One molecule of glucose produces 2 ATP in glycolysis, 2 in the CAC, and 34 in the ETC.
What is the decay mode of radium-226?
Answer:
Radium-226 is a radioactive decay product in the uranium-238 decay series and is the precursor of radon-222. Radium-228 is a radioactive decay product in the thorium-232 decay series. Both isotopes give rise to many additional short-lived radionuclides, resulting in a wide spectrum of alpha, beta and gamma radiations.
Substitute natural gas (SNG) is a gaseous mixture containing CH4(g) that can be used as a fuel. One reaction for the production of SNG is
4CO(g) + 8H2(g) → 3CH4(g) + CO2(g) + 2H2O(l) ΔHo = ?
Use appropriate data from the following list to determine ΔHo for this SNG reaction.
C(graphite) + 1/2O2(g) → CO(g) ΔHo = -110.5 kJ
CO(g) + 1/2O2(g) → CO2(g) ΔHo = -283.0 kJ
H2(g) + 1/2O2(g) → H2O(l) ΔHo = -285.8 kJ
C(graphite) + 2H2(g) → CH4(g) ΔHo = -74.81 kJ
CH4(g) + 2O2(g) → CO2(g) + 2H2O(l) ΔHo = -890.3 kJ
Answer:
ΔH° of the reaction is -747.54kJ
Explanation:
Based on gas law, it is possible to find the ΔH of a reaction using ΔH of half reactions.
Using the reactions:
(1) C(graphite) + 1/2O₂(g) → CO(g) ΔH° = -110.5 kJ
(2) CO(g) + 1/2O₂(g) → CO₂(g) ΔH° = -283.0 kJ
(3) H₂(g) + 1/2O₂(g) → H₂O(l) ΔH° = -285.8 kJ
(4) C(graphite) + 2H₂(g) → CH₄(g) ΔH° = -74.81 kJ
(5) CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O(l) ΔH° = -890.3 kJ
The sum of 4×(4) + (5) gives:
4C(graphite) + 8H₂(g) + 2O₂(g) → CO₂(g) + 2H₂O(l) + 3CH₄(g)
ΔH° = -74.81 kJ ×4 - 890.3 kJ = -1189.54kJ
Now, this reaction - 4×(1) gives:
4CO(g) + 8H₂(g) → CO₂(g) + 2H₂O(l) + 3CH₄(g)
ΔH° = -1189.54kJ - 4×-110.5 = -747.54kJ
Thus ΔH° of the reaction is -747.54kJ
ΔH° of the reaction is for the production of SNG -747.54kJ
Hess law and enthalpyAccording to Hess’ law of constant summation, the standard reaction enthalpy is independent of the pathway or number of the reaction steps taken for a multistep reaction, rather it is the sum of standard enthalpies of intermediate reactions involved at the same temperature.
Based on Hess law, it is possible to find the ΔH of a reaction using ΔH of half reactions.
From the given reactions:
C(graphite) + 1/2O₂(g) → CO(g) ΔH° = -110.5 kJCO(g) + 1/2O₂(g) → CO₂(g) ΔH° = -283.0 kJH₂(g) + 1/2O₂(g) → H₂O(l) ΔH° = -285.8 kJC(graphite) + 2H₂(g) → CH₄(g) ΔH° = -74.81 kJCH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O(l) ΔH° = -890.3 kJThe sum of Reaction 4 × 4 + Reaction 5 - Reaction 1 × 4 gives the reaction below:
4CO(g) + 8H₂(g) → CO₂(g) + 2H₂O(l) + 3CH₄(g)
ΔH° = {-74.81 kJ × 4} - 890.3 kJ {- 4 ×-110.5}
ΔH° = -747.54kJ
Therefore, ΔH° of the reaction is for the production of SNG -747.54kJ
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Neutral atoms & charged atoms has
equal number of electrons
Answer:
wrong.
Explanation: charged atoms have have more electrons than neural because they charge it . a neural atom has eaqual number of electrons and neutrons.
hope this helps(^人^)
In 1982, the United States government changed the way it minted pennies. Before 1982, pennies were made of 95% copper and 5% tin. Now they are made of 97.5% zinc coated with copper. Because they weigh different amounts (have different masses) and are still the same item, they make a good model for studying isotopes.
4. What do the two kinds of pennies represent in this exercise?
5. How do the pennies differ? How do isotopes differ?
6. What do the pennies have in common? What do isotopes have in common?
WILL GIVE BRANLIEST TO FIRST ANSWER!!! I know the correct answer is either a or d. Can anyone explain which one it is and why? CH3C ≡ CCH2CH2Cl is named: a. 1-chloro-3-pentyne b. 5-chloro-2-pentene c. 1-acetylenyl-3-chloropropane d. 5-chloro-2-pentyne
Answer: The IUPAC name of [tex]CH_3C\equiv CCH_2CH_2Cl[/tex] is 5-chloro-2-pentyne
Explanation:
1. First select the longest possible carbon chain. For the number of carbon atom, we add prefix as 'meth' for 1, 'eth' for 2, 'prop' for 3, 'but' for 4, 'pent' for 5, 'hex' for 6, 'sept' for 7, 'oct' for 8, 'nona' for 9 and 'deca' for 10.
2. The longest possible carbon chain should contain all the bonds and functional groups.
3. The numbering is done in such a way that the carbon containing the functional group or substituent gets the lowest number. Triple bond is given priority over substituent halogen.
4. The naming of alkane is done by adding the suffix -ane, alkene by adding the suffix -ene, alkyne.
Thus the IUPAC name of [tex]CH_3C\equiv CCH_2CH_2Cl[/tex] is 5-chloro-2-pentyne
If [H+] = 1.70 x 10-3 M, what is the pH of the solution?
Answer:
2.77
Explanation:
pH = - log (1.70 x 10^-3) = 2.77
For which purpose do biochemist insert human genes into bacteria
Answer: to find a cure for the common cold to produce insulin for diabetics
Explanation: It has helped many people
Which of the following statements describes electromagnetism?
Answer:
c)Magnetism can cause electrons to flow, and electricity can make a wire magnetic.
Explanation:
If this is your question:
Which of the following statements describes electromagnetism?
a)Magnetism and electricity are both used by society to do work.
b)Magnetism and electricity both include protons and electrons.
c)Magnetism can cause electrons to flow, and electricity can make a wire magnetic.
d)Electrons are attracted to the protons in magnets.
Answer:
magnetism can cause electrons to flow, and electricity can make a wire magnetic
Explanation:
a p e x :)
True Or False? A Load In A Circuit Transforms Light Energy Into Electrical Energy
Answer:
False
Explanation:
This is because the electrical circuit, where the electrical energy is converted into another form of energy, e.g. lightbulb converts electrical energy into light and heat, an electric bell converts the electrical energy into sound and heat.
False.
The statement a load in a circuit transforms the light energy into electrical energy is False.
What is a load in the circuit?Any device which transforms the electrical energy into other forms of energy, like light energy, sound energy, etc is called an electric load in the circuit.
What is electrical energy?The type of kinetic energy caused by moving electric charges is known as electrical energy. The alternating current, direct current, and batteries provide electrical energy.
So, the load transforms the electrical energy into other forms like light energy, sound energy, etc.
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before the digestive system X-rayed people are required to swallow suspensions of barium sulphate (BaSO4). calculate the mass of one mole of BaSO4
Answer:
Molar mass of BaSO4 = 137.3 + 32 + (16 ×4)
= 137.3 + 32 +64
= 233.3g/mol
Molar mass = mass/ number of moles
= 233.3 g/mol = mass/ 1 mol
mass = 233.3g
Hope this helps.
Se hacen reaccionar 100 g del agente oxidante con 25 g del agente reductor, según la reacción REDOX LaTeX: N_2\left(g\right)+H_2\left(g\right)\longrightarrow NH_3\left(g\right)N 2 ( g ) + H 2 ( g ) ⟶ N H 3 ( g ) Indique el reactivo en exceso y los gramos de amoniaco formado, si la eficiencia del proceso es del 80 %
Answer:
El reactivo en exceso es hidrógeno
97.12g NH₃ son formados
Explanation:
Basados en la reacción:
N₂(g) + 3 H₂(g) → 2 NH₃(g)
El hidrógeno pasa de estado de oxidación 0 a estado de oxidación +1. Al perder un electrón se oxida y es el agente reductor.
El nitrógeno pasa de estado 0 estado -3. Al ganar 3 electrones se reduce y es el agente oxidante.
100g de N₂ son (Peso molecular: 28g/mol):
100g × (1mol / 28g) = 3.57 moles de N₂
Y 25g de H₂ son (Peso molecular: 2g/mol):
25g × (1mol / 2g) = 12.5 moles de H₂
Como 3 moles de hidrógeno reaccionan por mol de nitrógeno, las moles de nitrógeno que se necesitan para hacer reaccionar completamente 12.5 moles de hidrógeno son:
12.5 moles H₂× (1 mol N₂ / 3 moles H₂) = 4.17 moles de nitrógeno.
Como hay 3.57 moles de nitrógeno, el reactivo en exceso es hidrógeno.
Como el reactivo limitante es el nitrógeno y 1 mol de nitrógeno produce 2 moles de amoniaco, las moles de amoniaco son:
3.57 moles de N₂ × (2 moles NH₃ / 1 mol N₂) = 7.14 moles de NH₃
La masa producida idealmente es:
7.14 mol NH₃ ₓ (17g/mol) = 121.4 g de NH₃. Como la eficiencia del proceso es del 80%:
121.4 g NH₃ × 80% = 97.12g NH₃ son formados
Answer:
Excess reactant: H₂
Mass of produced ammonia, 97.1 g
Explanation:
Identify the reaction:
N₂ + 3H₂ → 2NH₃
We identify the reducing agent and the oxidizing agent:
N₂ changed the oxidation state from 0 to -3. This is the reduction, so it is the oxidizing agent. By the way the H₂ is the reducing agent.
We convert the mass to moles:
100 g / 28 g/mol = 3.57 moles of N₂
25 g / 2 g/mol = 12.5 moles of H₂
Ratio is 1:3. For 1 mol of nitrogen, we need 3 moles of hydrogen
Then, 3.57 moles of N₂ would need (3.57 . 3) / 1 = 10.7 moles
We have 12.5 moles of H₂, so the hydrogen is the excess reactant and the nitrogen is the limiting.
To produce ammonia, the reaction needs 1 mol of N₂, that can produce 2 moles of product
3.57 moles of N₂ will produce (3.57 . 2) / 1 = 7.14 moles of NH₃
As yield reaction is 80%, we will produce 7.14 mol . 0.80 = 5.71 moles
We convert the moles to mass: 5.71 mol . 17 g / 1mol = 97.1 g
the list which contains only metals is
Answer:
Hydrogen in its metallic state (usually considered a nonmetal)
Lithium.
Sodium.
Potassium.
Rubidium.
Cesium.
Francium.
Explanation:
Answer:
The list of elements that contains only metals is tin, copper and cesium.
Carbon and iodine aren't metals.
Helium isn't metal.
Neither iodine, carbon, nor argon are metals.
(Hope this helps) Sky
What is the mass of a bone that has a volume of 80.0 cm3 and a density of 1.9 g/cm3 ?
Show the work in conversion factors format please!
Answer:
152
Explanation:
since it weighs 1.9 grams per [tex]cm^{3}[/tex] we get 80*1.9 which is 152 grams
H2(g) + I2(g) ↔2HI(g) + heat. If more I2 is added, in what direction will the equilibrium shift? Group of answer choices
Answer:
Towards the products, or to the right
Explanation:
There are no provided answer choices, but the answer should be to the right.
By Le Chatelier's principle, which basically can be summarized as "if you mess with chemistry, chemistry messes back", if more reactants are added, the equilibrium will shift to the right towards the products in order to make more products and counteract the increase in I₂.
A base has a molarity of 1.5M w.R.T the hydroxyl ion concentration. If 7.35 cm3 of this base is taken and diluted to 147 cm3, then what is the concentration of the hydroxyl ion.
Answer:
0.077M is the concentration of the hydroxyl ion
Explanation:
Dilution factor is the ratio between the aliquot that is taken of a solution and the total volume of the diluted solution.
For the problem, dilution factor is:
7.53cm³ / 147cm³ = 0.05122
To obtain molarity of a diluted solution you must multiply dilution factor and initial molarity of the solution, thus:
1.5 M × 0.05122 = 0.077M is the concentration of the hydroxyl ion
What is the net ionic equation of
Mg(s) + Zn2+ + 2NO3 → Mg2+ + 2NO3 + Zn(s)?
A. Mg(s) → Zn(s)
B. Mg(s) + Zn2+ → Mg2+ + Zn(s)
C. Mg(NO3)2 + Zn(s) → Zn2+ + 2NO3 + Mg(s)
D. Mg(s) + Zn(NO3)2 (aq) → Mg(NO3)2(aq) + Zn(s)
Answer:
Mg(s)+Zn2+>>>>>Mg2++Zn(s) B
Explanation:
The net ionice quation of a reaction represents the net change in the reaction.Here the reaction proceeds to the formation of Mg²⁺ ion and metallic zinc. Thus option B is correct.
What is ionic equation?
A balanced equation of chemical reaction represents the perfect stoichiometric ratio of each reactants and products where each elements have to be equal in number in both side.
An ionic equation represents the ions involved in the reaction and the charges and coefficients of ions have to balanced each side.
In the electrolysis of magnesium and zinc electrodes, metallic magnesium oxidizes to Mg²⁺ions and Zn²⁺ ions reduces to metallic zinc. The NO³⁻- ions remains as same as in its aqueous state in the electrolyte.
Hence the net ionic equation is as written in option B.
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Which of the following rocks would probably be made up of the largest
mineral grains?
(granite, scoria, pumice, basalt)
Answer:
Granite will be made up of the largest
Which phrase best describes the path of a light wave ?
A. Straight away from the source
B. Spiraling around the source
C. Perpendicular to the source
D. Parallel to the source
Answer:
La B
Explanation:
It's B on Ap3x
Straight away from the source
What does the symbol (–Delta.Hfus) indicate in a phase change?
Answer:
changes from a solid to a liquid
Explanation:
C- A solid is being formed
Since the delta is negative, this indicates that a substance is transforming from a liquid state to a solid state. This best corresponds with C- A solid is being formed.
What would the rate law be for the following reaction:
2 H2 + O2 → 2 H2O
a
Rate = k[O2]
b
Rate = k[H2]2
c
Rate = k[H2]2[O2]
d
Rate = k[H2O]2
Answer:
C. Rate = k[H2]^2[O2]
Explanation:
Rate law only cares about REACTANTS. Since, rate law can only be determined experimentally, I am assuming the given reaction mechanism is elementary reaction from which we can write the rate law.
Only H2 and O2 are part of rate law since they are reactants and also the coefficient in front of H2 goes as exponent on rate law to indicate the order of H2 in the reaction.
Rate= k [H2]^2 [O2]
According to the chemical equilibrium, the rate law for the given reaction is Rate = k[H₂]²[O₂] as the concentration is dependent on both the reactants.
What is chemical equilibrium?Chemical equilibrium is defined as the condition which arises during the course of a reversible chemical reaction with no net change in amount of reactants and products.A reversible chemical reaction is the one wherein the products as soon as they are formed react together to produce back the reactants.
At equilibrium, the two opposing reactions which take place take place at equal rates and there is no net change in amount of the substances which are involved in the chemical reaction.At equilibrium, the reaction is considered to be complete . Conditions which are required for equilibrium are given by quantitative formulation.
Factors which affect chemical equilibrium are change in concentration , change in pressure and temperature and presence of catalyst.
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How many moles are in 1.5L of 0.40M Na2SO4?
Answer:
0.60 moles of Na₂SO₄
Explanation:
Molarity is an unit of concentration defined as the ratio between moles of solute and liters of solution.
A solution of Na₂SO₄ 0.40M contains 0.40 moles of solute (Na₂SO₄) per liter of solution.
As you have 1.5L of solution, moles of Na₂SO₄:
1.5L × (0.40mol / L) = 0.60 moles of Na₂SO₄
Q2. Which of these is a mixture?
1.chlorine
2.sodium chloride solution
3.sodium
4,sodium chloride
Which statement best describes how an ionic bond forms?
The transfer of electrons forms strong bonds between ions.
The sharing of electrons forms strong bonds between ions.
The transfer of electrons results in attractive forces between molecules.
The sharing of electons results in attractive forces between molecules.
Answer:
The answer is option A
Explanation:
The question states,'which statement best describes how an ionic bond forms. The correct option is A. Ionic bonds are formed as a result of complete transfer of electrovalence electrons from one atom to another. The atom that donate the electron become a positively charged ion while the atom that received the atom become a negatively charged ion.
Brainliest is greatly appreciated
Answered by: Skylar
6/8/2020
10:05 AM (Eastern Time)
Answer:
A!!!!
Explanation:
which of the following causes tornadoes?
Answer:
Tornadoes form when warm, humid air collides with cold, dry air.
Explanation:
The denser cold air is pushed over the warm air, usually producing thunderstorms. The warm air rises through the colder air, causing an updraft. The updraft will begin to rotate if winds vary sharply in speed or direction.
// have a great day //
Answer:
your question says of the following but their isn't any of the following ):
Explanation:
But other than than that person right up above
The melting point of three solids X,Y and Z are 298K, 314 K and 398K respictively.Arrange these in increasing order of their inter particle force of attraction
Answer:
Explanation:
The higher the melting point of a substance, then the higher the force of attraction. Which means there is direct relationship between the melting point and force of attraction.
The increasing order of interparticle force of attraction of the the three particles are
Z(398) Y(314) X (298)
I.e Particle " Z " have highest melting point, follows by particle "Y" follows by particle "X
NOTE: The melting point of a substance refers to the
temperature whereby there there is a change from solid state to liquid state, it is dependent on the pressure of the system
why is copper different than copper ore gives me reasons. Do this asap
Answer:
copper cathodes are normally referred to when talking about copper. Cathode is the purest form of copper and is the feedstock used to produce copper wire, cable, sheet, strip, tube, etc.
Explanation:
3. How much power is required to pull a sled if you use
60j of work in secound?
Answer:
The answer is 60W
Power = Work done/ time
time = 1 second
Work done = 60J
Power = 60/1
= 60W
Hope this helps.
calculate the ph of a solution containing 0.001 mol dm-3 Naoh
Answer:
pOH = - log [molarity of OH-] = - log [ molarity of NaOH] , assuming full dissociation. Thus, pOH = - log ( 0.001) = - (-3) = 3. Thus, the pH of 0.001 mol/dm3 NaOH solution is 11.
Explanation:
Hope it'll help!
