Why can water molecules store energy in more ways than neon atoms?


Select the correct answer.


A. Water molecules can rotate, but neon atoms cannot.

B. Water molecules can collide with other particles more than neon atoms can.

C. Water molecules can change their speed, but neon atoms cannot.

D. Water molecules can absorb heat more easily than neon atoms can.

Hey there!

C. Candle

Explanation:

Answer. High-density polyethylene or HDPE is a thermoplastic polymer used in the production of plastic bottles, containers, corrosion-resistant pipes, etc. and not used for the production of candles. Commercially available candles are made with paraffin wax.

Answer:

Zone A

Explanation:

Because, when facing the sun, the "A" zones would be furthest from the sun, they get the least amount of sunlight (also shows why they are the coldest parts).

The percent yield of H₂O, if 87.0 g of H₂O is produced by combining 95.0 g of O₂ and 11.0 g of H₂ is 87.87%.

Mass of any substance will be calculated by using their moles as:

n = W/M, where

W = given or required mass

M = molar mass

Moles of 95g of Oxygen (O₂) = 95g / 32g/mol = 2.96 moles

Moles of 11g of hydrogen (H₂) = 11g / 2g/mol = 5.5 moles

Given chemical reaction is:
2H₂ + O₂ → 2H₂O

From the stoichiometry of the reaction, it is clear that:

1 moles of O₂ = reacts with 2 moles of H₂

2.96 moles of O₂ = reacts with 2×2.96=5.92 moles of H₂

Here hydrogen is the limiting reagent as it has lower moles and formation of water depends on this only.

2 moles of H₂ = produces 2 moles of water

5.5 moles of H₂ = produces 5.5 moles of water

Mass of 5.5 moles of water will be calculated as:

W = (5.5mol)(18g/mol) = 99g

Given theoretical yield of water = 87g

% yield of water will be calculated as:
% yield = (87 / 99)×100 = 87.87%

Hence required value is 87.87%.

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Answer:

D

Explanation:

Answer:

208.8018 g/Mol you conver the answer by weight and moles

Answer:

that's because

Explanation:

as far as my knowledge is concerned

HCl(g) + H2O ⇄ H3O+ (aq) + Cl– (aq)

or, more simply (and truer to the original theory):

HCl(g) ⇄ H+ (aq) + Cl– (aq) or HCl(aq)

The temperature change that indicates an increase in the average kinetic energy of the molecules in a sample is 255 K to 0°C.

Chemical reactions occur when particles of reactants react or collide with one another, hence, when particles collide faster, reaction also occurs faster.

One of the ways to make reactions occur faster i.e. increasing the average kinetic energy is by increasing the temperature.

The example that depicts an increase in temperature is 255K to 0°C, which is equivalent to 255K to 273K.

Therefore, the temperature change that indicates an increase in the average kinetic energy of the molecules in a sample is 255 K to 0°C.

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Answer:

3.0 atm

Explanation:

got it right on edge after guessing 2 times

The resulting pressure of the gas after decreasing the initial volume is 3 atm.

According to the Boyle's Law at constant temperature, pressure of the gas is inversely proportional to the volume of the gas:

P ∝ 1/V

For the given question required equation is:

P₁V₁ = P₂V₂, where

P₁ = initial pressure = 1.5 atm

V₁ = initial volume = 2 L

P₂ = final pressure = ?

V₂ = final volume = 1 L

On putting all these values on the above equation, we get

P₂ = (1.5)(2) / (1) = 3atm

Hence required pressure is 3 atm.

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Percentage yield tells the percentage ratio of actual to theoretical yield. The theoretical yield of iron(III) sulfate is 26.52 g.

The theoretical yield is the product formation from the complete modification of the limiting reagent in a chemical reaction.

The balanced chemical reaction is shown as,

[tex]\rm 2FePO_{4} + 3Na_{2}SO_{4} \rightarrow Fe_{2}(SO_{4})_{3} + 2Na_{3}PO_{4}[/tex]

Moles of ferric phosphate is calculated  as:

[tex]\begin{aligned} \rm n &= \rm \dfrac{mass}{molar \; mass}\\\\&= \dfrac{20}{150.82}\\\\&= 0.1326\;\rm mol\end{aligned}[/tex]

From the reaction,

[tex]\dfrac{1 \;\rm mol \; Fe_{2}(SO_{4})_{3} }{2 \;\rm mol \; FePO_{4}}&= \dfrac{\rm X}{ 0.1326 \;\rm mol \; FePO_{4}}[/tex]

Solving for X:

[tex]\begin{aligned} \rm X &= (\dfrac{0.1326}{2}) \times 1 \rm \; mol\\\\&= 0.0663 \;\rm mol \;Fe_{2}(SO_{4})_{3}\end{aligned}[/tex]

Calculating mass from moles:

[tex]\begin{aligned}\rm mass &= \rm moles \times molar \rm \; mass\\\\&= 0.0663 \;\rm mol \times 399.88 \;\rm g/mol \\\\&= 26.51\;\rm g\end{aligned}[/tex]

Therefore, option A. 26.52 gm is the mass of iron(III) sulfate.

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Answer:

A) 26.52

Explanation:

Answer:

Phosphorus

Explanation:

Actually that's red Phosphorus

Answer:

Option B. ( Phosphorus)

Explanation:

Here, we want to select the option which is the main component present in the striking surface of a matchbox

The correct choice here is phosphorus

Red phosphorus which is an allotrope of phosphorus finds use in this particular case. It is the main chemical component present in the striking surface of a matchbox.

Hope this helps!

If you have any queries please ask.

Let's see

[tex]\\ \rm\rightarrowtail H_2+S=H_2S+Heat[/tex]

So

Observe the equation

it releases heat means it's exothermic

So

Answer:

An acidic oxide reacts with water and produces acid. They are also called acid anhydride, which are oxides that react with water to form an acid, or with a base to form a salt. They are oxides of either nonmetal or of metals in high oxidation states. An oxide is a binary compound that we obtain upon the reaction of oxygen with other elements. Their chemistry can be systematically understood by taking an oxoacid and removing water from it until only an oxide remains. The resulting oxide belongs to this group of substances. Usually, it is the oxide of non-metals. For example, sulfurous acid (SO2), sulfuric acid (SO3), and carbonic acid (CO2) are acidic oxides. Thus, CO2 dissolves in water to give carbonic acid, and NO2 gives a mixture of nitrous and nitric acids. An inorganic anhydride (a somewhat archaic term) is an acid anhydride without an organic moiety.

Explanation:

The equilibrium for the dissolution of the weak base is ;(CH3)2NH(aq) + H2O(l) ⇄ (CH3)2NH3^+(aq) + OH^-(aq)

A weak base is one that does not ionize completely in solution. As such, a weak base will have a very low base dissociation constant Kb reflecting its minimal dissociation in solution.

The question is incomplete hence we are are unable to work out the equilibrium but in solution it will look like this;

(CH3)2NH(aq) + H2O(l) ⇄ (CH3)2NH3^+(aq) + OH^-(aq)

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The equilibrium for the reaction between (Ch₃)2NH of the weak base is (CH₃)2NH(aq) + H₂O(l) ⇄ (CH₃)2NH₃⁺(aq) + OH⁻(aq).

A weak base is one that does not completely dissociate in water.

It leaves only a small proportion of hydroxide ions and the concerned basic radical in the resulting aqueous solution.

A large proportion of dissociated base molecules.

Thus, the equilibrium for the reaction is (CH₃)2NH(aq) + H₂O(l) ⇄ (CH₃)2NH₃⁺(aq) + OH⁻(aq).

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Thermohaline circulation that occur in the ocean part that flows across sea surface help to supply heat to polar regions.

The thermohaline circulation refer to a section and region of the ocean circulation which is majorly driven by heat gradient and freshwater that flows across the sea surface and also from the mixture of heat and salt that occur at the inside part of the ocean.

Therefore, Thermohaline circulation help to supply heat to polar regions.

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Answer:

hydrochloric acid (HCl)

Explanation:

balanced equation: Ca(OH)2+2HCl -> CaCl2+2H2O

85.0/36=2.33 mol HCl

120/74=1.62 Ca(OH)2

2.33 mol HCl x 1 mol CaCl2/2 mol HCl = 1.165 mol CaCl2

1.62 mol Ca(OH)2 x 2 mol CaCl2/1 mol Ca(OH)2 = 3.24 mol CaCl2

Answer:

Hydrogen

Explanation:

Hydrogen can never be central atom despite its low electronegativity

Answer:

[tex]\huge\boxed{\sf T = 682.4 \ K}[/tex]

Explanation:

Given Data:

Mole = n = 0.1 mol

Pressure = P = 530 mmHg = 0.7 atm

Volume = v = 8 L

Ideal gas constant = R = 0.8206 L atm K⁻¹ mol⁻¹

Required:

Temperature = T = ?

Formula:

Pv = nRT

Solution:

Rearranging for T

     [tex]\displaystyle T = \frac{Pv}{nR} \\\\T = \frac{(0.7)(8)}{(0.1)(0.08206)} \\\\T = \frac{5.6}{0.008206} \\\\T = 682.4 \ K\\\\\rule[225]{225}{2}[/tex]

An electric motor works by converting electrical energy to mechanical energy in order to create motion.

For example,Force is generated within the motor through the interaction between a magnetic field and winding alternating (AC) or direct (DC) current.

This works because…

Answer : When an electric current flows through the wire in the electromagnet, a magnetic field is produced in the coil.

[tex]\:\mathsf{Hope\:this\:helps\:you!}[/tex]

Answer:

when an electric current flows through the wire in the electromagnet , a magnetic field is produced in the coil .

Explanation:

Species that have a lone pair of electrons often donate electrons by resonance while substituents that are electron deficient take away electrons by resonance.

The term resonace has to do with the movement of electron pairs in a molecule. Inductive effects has to do with the drawing of electron density towards an atom or bond.

The two effects depends on the nature of a substituent. For instance, species that have a lone pair of electrons often donate electrons by resonance while substituents that are electron deficient take away electrons by resonance.

The question is incomplete hence the exact nature of the substituents can not be determined.

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In resonance, the species with lone pairs donate electrons while the substituent takes electrons away from another species when deficient by resonance.

When the electron donor or the withdrawal groups creates the electron density on the molecule then it is called the inductive effect. This results in the creation of permanent dipoles in the bonds of the molecules.

Atom attached to a benzene molecule with higher electronegativity than hydrogen atom then, it will be an acceptor while with lower electronegativity will be a donor.

The movement of the electron pair like lone pair and pi bond in a molecule by the delocalization is called the resonance effect. The electron donation and acceptance depend on the nature of the substituent molecule.

If the atom attached to the benzene molecule is electron-rich, it will be a donor, while the electron-deficient will accept the electron by the method of resonance effect.

Therefore, the nature of the substituent determines the resonance and the inductive effect.

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Ca is the correct answer. Maybe

The genotypes are not found in the question, but p and q can be used to calculate genotypic frequencies by using the equation p2 + 2pq + q2 = 1.

The Hardy–Weinberg principle is a model used in population genetics to estimate allele and genotypic frequencies in a population.

According to the Hardy–Weinberg principle, the sum of p + q is equal to 1, where p and q represent the dominant and recessive alleles, respectively.

The Hardy–Weinberg principle considers the absence of different evolutionary forces acting on the population.

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The formula for calculating the probability of an offspring from a population having each of the following genotypes is p2 + 2pq + q2 = 1.

The number of people with a particular genotype divided by the total number of people in a population is known as genotype frequency.

p2 + 2pq + q2 = 1 is the Hardy Weinberg equation.

Thus, the formula for calculating the probability of an offspring from a population having each of the following genotypes is p2 + 2pq + q2 = 1.

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Answer:

Carbohydrates

Explanation:

first of all, I took a quiz and got it right but also Carbohydrates fuel the body and are broken down and made into glucose that can be absorbed into the bloodstream. so when absorbed into the bloodstream they travel in the blood to the body's cells where they are used for respiration.

There are 1.56 moles of solute present in a 2300 mL solution of 0.68M MgSO4.

The number of moles of a substance can be calculated by using the following formula:

molarity = no. of moles / volume

According to this question, a volume of 2300 mL solution is contained in 0.68 M MgSO4. The number of moles is calculated as follows:

no of moles = 0.68M × 2.3

no. of moles = 1.56

Therefore, there are 1.56 moles of solute present in a 2300 mL solution of 0.68M MgSO4.

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Answer:

Mendeleev left some gaps in his periodic table because he believed that in future more elements will be discovered.

Explanation:

"Mendeleev left gaps in his table to place elements not known at the time. By looking at the chemical properties and physical properties of the elements next to a gap, he could also predict the properties of these undiscovered elements."

Answer:

Single atoms of elements are not molecules.

Explanation:

A single oxygen, O, is not a molecule. When oxygen bonds to itself (e.g., O2, O3) or to another element (e.g., carbon dioxide or CO2), molecules are formed

Answer:

[tex]\sf\large\underline\purple{Fractional\: Distillation:-}[/tex]

[tex]\rightarrow[/tex]The process involves repeated distillations and condensations and the mixture is usually separated into component parts. The separation happens when the mixture is heated at a certain temperature where fractions of the mixture start to vaporize.

[tex]\rightarrow[/tex]The basic principle of this type of distillation is that different liquids boil and evaporate at different temperatures. So when the mixture is heated, the substance with lower boiling point starts to boil first and convert into vapours.

[tex]\sf\underline\green{Applications\: Of\:Fractional\: Distillation:-}[/tex]

________________________________

Hope it helps you:)

Answer: Chlorine gas is produced when sulfuric acid is mixed with chlorine bleach.

Explanation:  This reaction is a function of the change in pH of the solution from alkaline to acidic combined with the strong oxidant properties of hypochlorous acid.

The mass of  potassium chlorate, KClO₃ needed to produce 30 grams of potassium chloride, KCl is 49.33 grams

2KClO₃ —> 2KCl + 3O₂

Molar mass of KClO₃ = 39 + 35.5 + (16×3) = 122.5 g/mol

Mass of KClO₃ from the balanced equation = 2 × 122.5 = 245 g

Molar mass of Kcl= 39 + 35.5 = 74.5 g/mol

Mass of KCl from the balanced equation = 2 × 74.5 = 149 g

SUMMARY

From the balanced equation above,

149 g of KCl were obtained from 245 g of KClO₃

From the balanced equation above,

149 g of KCl were obtained from 245 g of KClO₃

Therefore,

30 g of KCl will be obtained from = (30 × 245) / 149 = 49.33 g of KClO₃

Thus, 49.33 g of KClO₃ are needed for the reaction

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Answer:

60w x 24 = 1440wh per day

1440 x 60 = 86400 WATTS HOUR FOR 60 DAYS

Explanation:

In short.

86400/1000 = 86.4kwh

brainiest me :> THANK YOU!

Answer:

86.4kwh

Explanation: