The ions are able to move freely from one place to another. So that they conduct electricity. But the molecular solutions does not electricity.
What is a molecular solution?The molecular solution is composed of molecules and consists of non - metallic atoms. These atoms are held together by the covalent bonds. The flow of charged particles is responsible for the conduction of electricity. If there is no flow of electrons or ions then there will be no electricity.
In the molecular solutions, the molecules present are not dissociated into respective ions. Since the molecules are not converted into the charged particles no electricity is produced.
A molecular solution is regarded as a non-electrolyte which does not contain ions. But electrolytes are dissociated into ions and thereby conducts electricity. So all electrolytes are good conductors of electricity.
Thus molecular solution does not contain ions.
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MULTIPLE CHOICE: For a combustion system, incorrect statement is?
Answer:
I THINK it's D, I could be incorrect, however.
Explanation:
C3H8O, as it is flammable, and thus I wouldn't imagine it being a product of combustion. I could be incorrect, so take my answer with a grain of salt.
Write the balanced equation for the neutralization reaction between H3PO4 and NaOH in an aqueous solution.
Answer:
H3PO4 + 3NaOH ==> Na3PO4 + 3H2O
The balanced equation for the given reaction is [tex]3NaOH+H_3PO_4---- > Na_3PO_4+3H_2O[/tex]
What is neutralization reaction?A chemical reaction in which an acid and a base react quantitatively with each other is known as neutralization.
In a water reaction, neutralization means that there is no excess of hydrogen or hydroxide ions in the solution.
A neutralization reaction occurs when an acid and a base react to form water and a salt through the combination of H+ ions and OH- ions. The pH of neutralization of a strong acid and a strong base is 7.
Three moles of sodium hydroxide are required for one mole of phosphoric acid. The balanced equation tells us the following: 1 mol of H3PO4 reacts with 3 mol of NaOH.
It can be written as
[tex]3NaOH+H_3PO_4---- > Na_3PO_4+3H_2O[/tex]
Thus, this is the balanced equation for the given neutralizing reaction.
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Balance equation how many reactants and products?
Answer:
In balanced equation:
reactants of Zn = 1
reactants of Cl = 2
products of Zn = 1
products of Cl = 21
A aliquot of solution containing of in required of EDTA solution for titration. How many milligrams of will react with of this EDTA solution?
Answer:
The answer is "[tex]\bold{1.39 \ mg}[/tex]".
Explanation:
Please find the complete question in the attached file.
Total Moles of [tex]Mg_2^{+}[/tex] = moles of [tex]MgSO_4[/tex]
[tex]= \frac{mass}{molar \ mass \ of MgSO_4}\\\\= \frac{0.450}{120.37}\\\\ = 0.0037385 \ mol[/tex]
[tex]Mg_2^{+} + EDTA4^{-} \longrightarrow Mg(EDTA)2^{-}[/tex]
EDTA mol in 37.6 mL of solution = 50.0 mL of [tex]Mg2^{+}[/tex]
[tex]= \frac{50.0}{500} \times[/tex] total moles of [tex]Mg2^{+}[/tex]
[tex]= \frac{50.0}{500} \times 0.0037385\\\\= 3.7385 \times 10^{(-4)} \ mol\\[/tex]
[tex]Ca2^{+} + EDTA4^{-} \longrightarrow Ca(EDTA)2^{-}[/tex]
[tex]CaCO_3 Moles = Ca2^{+} Moles =[/tex] EDTA moles in a solution of 1.40 mL
[tex]= \frac{1.40}{37.6} \times 37.6 \ mL[/tex] the solution of EDTA moles.
[tex]= \frac{1.40}{37.6} \times 3.7385 \times 10^{(-4)} \\\\= 1.392 \times 10^{(-5)}\ mol\\\\[/tex]
Mass of [tex]CaCO_3 =[/tex]mole[tex]\times[/tex] the molar mass of [tex]CaCO_3[/tex]
[tex]= 1.392 \times 10^{(-5)} \times 100.09\\\\= 0.00139 \ g\\\\ = 1.39 \ mg[/tex]
How long will it take to deposit 6.32 g of copper from a CuSO4(aq) solution using a current of 0.554 amps
Answer:
34672.96 s
Explanation:
m = Mass of copper = 6.32 g
M = Molar mass of copper = 63.5 g/mol
F = Faraday constant = 96500 C/mol
The electrode equation would be
[tex]Cu^{2+}(aq)+2e^{-}=Cu(s)[/tex]
Number of electrons = 2 = e
I = Current = 0.554 A
t = Time taken
Charge would be
[tex]Q=\dfrac{m}{M}eF\\\RightarrowQ=\dfrac{6.32}{63.5}\times 2\times 96500\\\Rightarrow Q=19208.82\ \text{C}[/tex]
Charge is given by
[tex]Q=It\\\Rightarrow t=\dfrac{Q}{I}\\\Rightarrow t=\dfrac{19208.82}{0.554}\\\Rightarrow t=34672.96\ \text{s}[/tex]
Time taken to deposit the copper is 34672.96 s.
What is the compound name for HgCl2
Answer:
Mercury Chloride
Explanation:
Trust me, this answer is correct.
PLEASE ANSWER PLEASE
35 POINTS Y'ALL
What is the difference in petroleum and natural gas?
thanks,
-throckmorton
Answer:
:)
Explanation:
Petroleum gas is mainly C3 and C4 based (propane and butane), whilst natural gas is predominantly C1 and C2 (methane and ethane). Petroleum gas is generally produced via the cracking of naphtha, which is one of the components separated during crude oil refining.
Petroleum is C3 or C4 (propane and butane) while Natural Gas is C1 and C2. (methane and ethane)
Petroleum is also produced differently then Natural Gas.
"Petroleum gas is generally produced via the cracking of naphtha, which is one of the components separated during crude oil refining." - socratic.org
What can you say about the effect of sulfuric acid on the reaction between the alcohol and carboxylic acid?
Answer:
It provides hydrogen ions to favor the formation of ester.
Explanation:
Hello!
In this case, since the reaction between and alcohol and a carboxylic acid yields an ester and water as an organic acid-base neutralization reaction, represented via:
[tex]R_1-OH+R_2COOH\rightleftharpoons H_2O+R_2COO-R_1[/tex]
As you can see, this reaction is at equilibrium because the ester is able to come back to the initial reactants, it means that the addition of hydrogen ions favor the reaction towards the formation of more ester, effect that is attained via the addition of sulfuric acid, which acts as a catalyst in this reaction because it provides the hydrogen ions, this reaction needs.
Best regards!
iron chloride + sodium hydroxide
Answer:
Sodium hydroxide reacts with iron(III) chloride to produce iron(III) hydroxide and sodium chloride.
Hope this helps plz hit the crown :D
what has a higher melting point KBr or CH3CH2CH2CH3
Answer:
i don't understand the question
Explanation:
8. Insecticides are most likely to be damaging when used incorrectly.
Answer:
True (see detailed explanation).
Explanation:
Hello!
In this case, since insecticides are substances that keep crops from insects that can eat or damage them, it has been acknowledged they are important for the agricultural industry and therefore the citizens sustainability.
However, since insecticides have really complex chemical structures, they are unlikely or sluggishly decomposed by the humans and other animals' cells, which can lead to irreversible genetic damage, cancer and other serious diseases; therefore, when they are used incorrectly, say higher amounts than necessary, spread on crops that are not significantly affected by insects or by any other reason, they are very likely to be damaging for us, animals and in general the environment.
Best regards!
In both endothermic and exothermic processes, energy is
Answer:
involve the transfer of energy
Explanation:
in endothermic requires the input of energy whereas in exothermic it release energy upon completion.
one parent has type AB blood while the other has Type O blood.Which two blood type could their children have?
A mother who is blood type O can only pass an O allele to her son or daughter. A father who is blood type AB could pass either an A or a B allele to his son or daughter. This couple could have children of either blood type A (O from mother and A from father) or blood type B
A graph of potential energy versus inter-nuclear distance for two chlorine atoms is given below
Answer:
Explanation:
The sketch of the curve for two Br atoms can be seen in the image attached below. From the image below, we can deduce the following:
On the periodic table, the Bromine (Br) atom is the fourth member in the halogen family group. The atomic size increases from top to bottom down the group, thus Br atom posses a larger atomic size than Cl atom. As a result of that, the bond length formation between the two Br atoms will be larger compared to that of the two Cl atoms.
In the Energy and Specific Heat lab, you measure the temperature change of water to study the specific heat of a metal. What statement explains the relationship between the water and the metal you are studying
The question is incomplete, the complete question is;
In the Energy and Specific Heat lab, you measure the temperature change of water to study the specific heat of a metal. What statement explains the relationship between the water and the metal you are studying? Select one: O The heat lost by the metal plus the heat gained by the water equals 100. O The temperature change of the metal is equal to the temperature change of the water. O The heat lost by the metal is equal to the heat gained by the water. The initial temperature of the metal equals the initial temperature of the water
Answer:
The heat lost by the metal is equal to the heat gained by the water.
Explanation:
When the piece of metal is put into water, heat is lost by the metal and gained by the water.
Recall that energy is conserved hence heat lost by metal must be equal to heat gained by water.
Thus, the relationship between the metal under study and the water is that the metal looses heat to the water and heat lost by metal is equal to heat gained by water.
The statement that explains the relationship that lies between the water and the metal you are studying is that the heat lost by the metal is equal to the heat gained by the water.
The following information should be considered:
At the time when the metal piece place in the water so the heat should be lost via the metal and it should be gained by the water. The energy that recall should be conserved thus the heat that should lost by metal should be equivalent to the heat gained by water.Therefore we can conclude that the statement that explains the relationship that lies between the water and the metal you are studying is that the heat lost by the metal is equal to the heat gained by the water.
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Draw the correct structure(s) for (2R,3S)‑2,3‑dibromobutane. Show stereochemistry clearly. To ensure proper grading, explicitly draw all four groups, including wedge/dash bonds, around a chirality center. Indicate whether the compound(s):_____.a. could exist in an optically active form.b. could exist in optically active form.b. cannot exist in optically active form.c. cannot be determined.
Answer:
b. cannot exist in optically active form
Explanation:
Stereochemistry is a branch of chemistry that involves the spatial arrangement of the atoms of molecules and studies how this affects the physical and chemical properties of such species.
The correct structure for (2R,3S)‑2,3‑dibromobutane can be seen in the image attached below. Since the compound is a meso compound due to the plane of symmetry. Thus, the compound is achiral. i.e. Compounds that are superimposable on its mirror image. The plane of symmetry is vertical inclined at 90°(i.e. perpendicular) to the page thus goes via the middle of the molecule.
Robert was changing the oil in his truck. He dumped the used oil on the ground in his yard. He didn't know it, but Robert was hurting the environment because the oil-
HELP FAST
Answer:
goes deep into the ground and pollutes the groundwater.
For the following reaction in aqueous solution, identify all the species that will be spectator ions. 2KF + Mg(CH3COO)2---------- 2KCH3COO + MgF2 Choose one or more: a. F– b. K c. Mg2 d. KCH3COO e. Mg(CH3COO)2 f. CH3COO– g. KF h. MgF2
Answer:
b. K⁺.
f. CH3COO⁻.
Explanation:
Hello!
In this case, since the reaction:
[tex]2KF(aq) + Mg(CH_3COO)_2(aq)\rightarrow 2KCH_3COO(aq) + MgF_2(s)[/tex]
Has a precipitation product which is magnesium fluoride, it is not ionized so the ionic equation is:
[tex]2K^+(aq)+F^-(aq) + Mg^{2+}(aq)+2CH_3COO^-(aq)\rightarrow 2K^++2CH_3COO^-(aq)(aq) + MgF_2(s)[/tex]
Thus, since potassium and acetate ions are at both reactants and product sides, we infer they are the spectator ions; therefore the answer is b. K⁺ and f. CH3COO⁻.
Best regards!
The spectator ions are CH3COO– and K^+.
We must remember that spectator ions are the ions that do not undergo any change from left to right in the reaction equation.
The molecular reaction equation is;
2KF(aq) + Mg(CH3COO)2(aq)---------- >2KCH3COO(aq) + MgF2 (s)
Complete ionic reaction equation is;
2K^+(aq) + 2F^-(aq) + Mg^2+(aq) + 2CH3COO^-(aq) ----> 2K^+(aq) + 2CH3COO^-(aq) + MgF2 (s)
Eliminating the spectator ions, we have the net ionic reaction equation;
Mg^2+(aq) + 2F^-(aq) ------> MgF2 (s)
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A sample contains 16 mg of polonium-218. After 12 minutes, the sample will contain 1.0 mg of polonium-218. What is the half life of polonium-218?
Answer:
Half-life = 3 minutes
Explanation:
Using the radioactive decay equation we can solve for reaction constant, k. And by using:
K = ln2 / Half-life
We can find half-life of polonium-218
Radioactive decay:
Ln[A] = -kt + ln [A]₀
Where:
[A] could be taken as mass of polonium after t time: 1.0mg
k is Reaction constant, our incognite
t are 12 min
[A]₀ initial amount of polonium-218: 16mg
Ln[A] = -kt + ln [A]₀
Ln[1.0mg] = -k*12min + ln [16mg]
-2.7726 = - k*12min
k = 0.231min⁻¹
Half-life = ln 2 / 0.231min⁻¹
Half-life = 3 minutes28. Element X is powerful enough to reduce sodium ions to sodium metal. Barium is a strong enough reducing agent to reduce X +to X. What is the identity of element X? _____________
Answer:
hope it's correct.
Explanation:
element is nickel.
When 1.00 mole of NH4NO3 dissolves in water, the enthalpy change is ΔH = + 25.7 kJ. What is the enthalpy change if 17.5 grams of NH4NO3 are dissolved
Answer:
5.62 kJ
Explanation:
Let's consider the thermochemical equation for the dissolution of ammonium nitrate.
NH₄NO₃(s) ⇒ NH₄⁺(aq) + NO₃⁻(aq) ΔH° = 25.7 kJ
25.7 kJ are absorbed per 1.00 mole of NH₄NO₃. The enthalpy change when 17.5 g of NH₄NO₃ (M: 80.04 g/mol) are dissolved is:
17.5 g × 1 mol/80.04 g × 25.7 kJ/mol = 5.62 kJ
Considering the rule of three, if 17.5 grams of NH₄NO₃ are dissolved, the enthalpy change is 5.62 kJ.
In first place, the rule of three is a way of solving problems of proportionality between three known values and an unknown value, establishing a relationship of proportionality between all of them.
That is, what is intended with it is to find the fourth term of a proportion knowing the other three.
If the relationship between the magnitudes is direct, that is, when one magnitude increases, so does the other (or when one magnitude decreases, so does the other) , the direct rule of three must be applied.
To solve a direct rule of three, the following formula must be followed, being a, b and c known data and x the variable to be calculated:
a ⇒ b
c ⇒ x
So: [tex]x=\frac{cxb}{a}[/tex]
Being 80 g/mole the molar mass of NH₄NO₃, that is, the amount of mass that a substance contains in one mole, the number of moles that 17.5 g of the compound contain is calculated as:
[tex]17.5 gramsx\frac{1 mole}{80 grams} =[/tex] 0.21875 moles
Then it is possible to apply the following rule of three: if when 1.00 mol of NH₄NO₃ dissolves in water the enthalpy change is ΔH =+25.7 kJ, when 0.21875 moles of the compound dissolves in water, the enthalpy change will have what value?
[tex]enthalpy change=\frac{0.21875 molesx25.7 kJ}{1 mole}[/tex]
enthalpy change= 5.62 kJ
Finally, if 17.5 grams of NH₄NO₃ are dissolved, the enthalpy change is 5.62 kJ.
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brainly.com/question/10936616?referrer=searchResults brainly.com/question/16487206?referrer=searchResults brainly.com/question/14446695?referrer=searchResults brainly.com/question/11564309?referrer=searchResults brainly.com/question/4025026?referrer=searchResults brainly.com/question/18650135?referrer=searchResultsWhich relation is correct
E ᾳ ѵ
ѵ = c / λ
both are correct
none
Answer:
geruow0irghvn3p0unhie0ghik
Explanation:
10. INFER: Why can the reactant in a
decomposition reaction never be an element?
Answer:
Because elements cannot decompose
Explanation:
Elements are distinct substances that cannot be split-up into simpler substances. Such substances are only made up of one atom.
An atom is the smallest indivisible particle of substance that can take part in chemical reaction. By chemical means, an atom cannot be broken down. Therefore, an element cannot break down during decomposition reaction. A decomposition reaction is one in which a substance breaks down into two or more products.1+1 hahahahahhhahahaahahahahahahahahahahahahahaha why u dumb
Answer:
1+1=2 Unless this is a trick question. Then it's most likely 11.
Explanation:
1 + 1 = 2
thxs for the points realy tho thxs
A J-shaped tube, closed at one end, is depicted in the figure at the right. It contains N2 gas that is trapped by an unknown liquid whose density is twice as large as that of mercury. The other end of the tube is open to the air. The value of h is measured to be 10 mm at sea level on a clear day at a temperature of 27°C. The atmospheric pressure is 1.00 atm. Assuming the vapor pressure of the liquid is zero, what is the concentration of the N2 gas trapped inside the J-shaped tube?
Answer:
the amount of concentration is about 23.9 grams of concentration you might want to add some hydrochloric acid to get the acidity to about 7 or seven depending on what you are doing
The pressure of a compressed gas is 1.45 atm. What is this pressure in kPa
Answer:
1.45 Atmospheres = 146.92125 Kilopascals, or about 146.9 Kilopascals
Explanation:
1 Atmosphere = 101.325 Kilopascals, so 101.325 Kilopascals x 1.45 Atmospheres = 146.92125 Kilopascals.
Using the conversion table, the pressure of the compressed gas at 1.45 atm when converted to kilopascal becomes 146.92 kPa.
How to convert from atm to kPa?
Atm is the standard atmosphere which is a unit of pressure.
From conversion table
1 atm atmospheric pressure is equivalent to 101.325 kPa ( kilopascal ).
Now, the pressure of the compressed gas at 1.45 atm will be;
P = 1.45 × 101.325 kPa
P = 146.92 kPa
Therefore, the pressure of the compressed gas at 1.45 atm when converted to kilopascal using the conversion table becomes 146.92 kPa.
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A typical coffee mug holds about 355,000 microliters of liquid. How many kiloliters of liquid does this mug hold expressed in standard Scientific notation?
Answer:
[tex]3.55\times 10^{-4}\ kL[/tex]
Explanation:
Given that,
A typical coffee mug holds about 355,000 microliters of liquid.
[tex]1\ \mu L=10^{-6}\ L[/tex]
Also, 1 L = 0.001 kL
[tex]10^{-6}\ L=0.001\times 10^{-6}\ kL\\\\=10^{-9}\ kL[/tex]
So, a typical coffee mug holds about [tex]355000 \times 10^{-9}\ kL[/tex] or [tex]0.000355\ kL[/tex] of liquid.
We need to convert it into Scientific notation.
We will shift 4 zeros to right. As a result,
[tex]V=3.55\times 10^{-4}\ kL[/tex]
So, the mug will hold [tex]3.55\times 10^{-4}\ kL[/tex] of liquid.
In the reaction, 2HgO(s)⟶2Hg(s) O2(g). How many liters of oxygen, O2 measured at STP, would be produced from the decomposition of 111 g of mercury(II) oxide, HgO?
Answer:
5.74 L O₂
General Formulas and Concepts:
Chemistry - Gas Laws
Reading a Periodic TableUsing StoichiometrySTP (Standard Conditions for Temperature and Pressure) = 22.4 L per mole at 1 atm, 273 KExplanation:
Step 1: Define
RxN: 2HgO (s) → 2Hg (s) + O₂ (g)
Given: 111 g HgO
Step 2: Identify Conversions
STP
Molar Mass of Hg - 200.59 g/mol
Molar Mass of O - 16.00 g/mol
Molar Mass of HgO - 200.59 + 16.00 = 216.59 g/mol
Step 3: Stoichiometry
[tex]111 \ g \ HgO(\frac{1 \ mol \ HgO}{216.59 \ g \ HgO} )(\frac{1 \ mol \ O_2}{2 \ mol \ HgO} )(\frac{22.4 \ L \ O_2}{1 \ mol \ O_2} )[/tex] = 5.73988 L O₂
Step 4: Check
We are given 3 sig figs. Follow sig fig rules and round.
5.73988 L O₂ ≈ 5.74 L O₂
A sample of Br2 gas has a volume of 29.0L and a pressure of 1.50 atm. If the initial temperature of the gas is 23 °C, what volume, in liters, will the gas occupy at 3.50 atm and 271 °C?
Answer:
V₂ = 22.84 L
Explanation:
Given data:
Initial volume = 20.0 L
Initial pressure = 1.50 atm
Initial temperature = 23 °C (23 +273 = 296 K)
Final temperature = 271°C (271+273 = 544 K)
Final pressure = 3.50 atm
Final volume = ?
Formula:
P₁V₁/T₁ = P₂V₂/T₂
P₁ = Initial pressure
V₁ = Initial volume
T₁ = Initial temperature
P₂ = Final pressure
V₂ = Final volume
T₂ = Final temperature
Solution:
V₂ = P₁V₁ T₂/ T₁ P₂
V₂ = 1.50 atm × 29.0L ×544 K / 296 K × 3.50 atm
V₂ = 23664 atm .L. K / 1036 atm.K
V₂ = 22.84 L