Which oxide is used to make red colour glass?​

There are approximately 0.4832 moles of ammonium sulfate in 63.8 g.

To determine the number of moles of ammonium sulfate (NH4)2SO4 in 63.8 g, we need to use the molar mass of ammonium sulfate. The molar mass is the sum of the atomic masses of all the atoms in the compound.

The molar mass of ammonium sulfate can be calculated as follows:

(NH4)2SO4:

[(1 * 2) + (4 * 1) + 32.06 + (16 * 4)] g/mol

= 132.14 g/mol

Now, we can use the molar mass to calculate the number of moles:

Number of moles = Mass (g) / Molar mass (g/mol)

Number of moles = 63.8 g / 132.14 g/mol

Number of moles ≈ 0.4832 moles

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Answer:

A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding

The balanced chemical equation for the reaction between a weak acid (H2S) and a strong base (KOH) can be represented as follows:

H2S(aq) + 2KOH(aq) → K2S(aq) + 2H2O(l)

The balanced chemical equation for the reaction between a weak acid (H2S) and a strong base (KOH) can be represented as follows:

H2S(aq) + 2KOH(aq) → K2S(aq) + 2H2O(l)

In this reaction, the weak acid H2S reacts with the strong base KOH to form the salt K2S and water. The equation is balanced with two moles of KOH and two moles of water produced for every mole of H2S reacted. The coefficients in the balanced equation indicate the stoichiometric ratio of the reactants and products.

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The difference between polyatomic ions and a compound is that polyatomic ions have positive or negative charge, while compounds have no net electrical charge.

Answer:

NaCL

Explanation:

sodium chlorine is a typical ionic compound

Explanation: Ionic compounds are different from those containing only covalent bonds. The latter exist as molecules whether in the pure state (crystals, liquids) or in solution. The former are a combination of two different kinds of particles. One kind (cations) carry a positive charge, and the second kind (anions) carry a negative charge. Sodium chloride is a typical ionic compound. It exists not as sodium chloride units but as sodium ions and chloride ions. In the solid state, these ions are arranged in a three-dimensional lattice, one kind of ion alternating with the other. In solution, the sodium ions and the chloride ions behave independently of each other.  

Consider a particular example of this independent behavior. Suppose you have two solutions. One contains silver ions and an anion whose silver salt is soluble. The second contains chloride ions and a cation whose chloride is soluble. When the two solutions are combined, a white precipitate of silver chloride forms. We can write an equation for the reaction:  

Ag+ + Cl-  AgCl ()  

The other ions are still present in the solution surrounding the precipitate (the supernatant liquid), but they do not participate in the reaction (see Figure 11.5a).  

Earlier we would have written the equation differently. Assuming that nitrate was the anion with silver and sodium the cation with chloride, the equation would have been  

AgNO3 + NaCl  AgCl () + NaNO3  

Another way to write the equation shows the ionic compounds in solution as separate ions:  

Ag+ + NO3- + Na+ + Cl-  AgCl()+ Na+ + NO3-  

This last equation shows clearly that only the silver and the chloride ions take part in the reaction; the sodium and nitrate ions do nothing. These nonparticipating ions are called spectator ions, meaning that they do not participate in the reaction - just as people in the stands at a football game are spectators, meaning that they do not participate in the game. The best equation for a reaction is one that shows only the participating ions; such an equation is called the net ionic equation. The net ionic equation for the reaction of silver ion with chloride is  

Ag+ + Cl-  AgCl ()  

Consider another situation. When an acid reacts with a hydroxide, water and a salt are formed. All acids release hydrogen ions in solution. Hydroxides furnish hydroxide ions. Hydrogen ions and hydroxide ions react to form water, a covalent un-ionized molecule (see Figure 11.5b). The equation for this reaction is  

H+ + OH- H2O  

Previously we would have written this neutralization reaction using complete formulas. For example, the equation for the reaction of hydrochloric acid with sodium hydroxide would be  

HCl + NaOH  NaCl + H2O  

Rewriting this equation to show the acid, the hydroxide, and the salt as ions - which is the way these compounds exist in solution - would give the equation  

H+ + Cl- + Na+ + OH-  Na+ + Cl- + H2O  

This equation shows clearly that the hydrogen and the hydroxide ions react and that the sodium and chloride ions are spectator ions. They would not appear in the net ionic equation.

Answer:

B

Explanation:

Gamma radiation is the most penetrating. It can penetrate air, paper or thin metal. It may only be stopped by many centimetres of lead or many metres of concrete.

Answer:

It seems believable and familiar.

Explanation:

Plz mark Brainlest

a. There are 0.1596 moles of NaCl in 0.3 L of NaCl stock solution.

b. There are 0.1596 moles of NaCl in 2.1 L of NaCl dilute solution.

c. The concentration of NaCl in the final solution is 0.076 M.

Molarity is said to be the number of moles of solute per liter of solution. For example, when salt is dissolved in water, the salt becomes the solute and the water becomes the solution. Since, one mole of sodium chloride weighs 58.44 grams and dissolving 58.44 grams of NaCl in 1 liter of water makes a 1 molar solution, abbreviated as 1M.

c. Let's calculate the concentration of NaCl in the final solution:

M₁V₁ = M₂V₂

M₁ = Initial concentration of NaCl (0.532 M)

V₁ = Initial volume of NaCl (0.3 L)

M₂ = Final concentration of NaCl

V₂ = Initial volume of NaCl (2.0 L)

0.532 × 0.3 = M₂ × 2.1

M₂ = (0.532 × 0.3)/2.1

M₂ = 0.076 M

a. To calculate number of moles in 0.3 L of NaCl stock solution.

Molarity = Mole of solute/Volume of solution

0.532 = Mole of NaCl/0.3

Mole of NaCl = 0.532×0.3

Mole of NaCl = 0.1596 mol

b. To calculate number of moles in 2.1 L of NaCl solution.

0.076 = Mole of NaCl/2.1

Mole of NaCl = 0.076×2.1

Mole of NaCl = 0.1596 mol

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Answer:

2.18 × 10³L

Explanation:

2178 litres of CO2 is produced in the combustion reaction.

HOW TO CALCULATE VOLUME

Density = mass ÷ volume

no of moles. = 5.9 × 10²⁵ ÷ 6.02 × 10²³

no. of moles = 5.9/6.02 × 10²

no. of moles = 0.98 × 10²moles

= 98moles

Moles = mass ÷ molar mass

Mass of CO2 = moles × molar mass

Molar mass of CO2 = 12 + 16(2) = 44g/mol

Mass of CO2 = 98 × 44

Mass of CO2 = 4312g = 4.312kg

Volume = 4.312kg ÷ 1.98kg/m³

Volume = 2.178m³

Since 1m³ = 1000L

2.178m³ = 2.178 × 1000

= 2178 liters.

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Dichromate, Cr2O72-, will complete the formula and form Al2(Cr2O7)3.

Aluminum has a 3+ charge and the anion needs a 2- charge to balance the charges in the compound.

Dichromate(2-) is a divalent inorganic anion obtained by removal of both protons from dichromic acid. It is a chromium oxoanion and a divalent inorganic anion. It is a conjugate base of a hydrogen dichromate.

29 atoms; --Al2(Cr2O7)3 Since the three is by itself outside the

parentheses, it has to be distributed.

       To do this, you just take the two from Cr times three, which of course gives you SIX. Then You take the seven from O times the three, and you get TWENTY-ONE.

Then you just have to add the TWO from Al to it. So, 6+21+2=29.

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Answer:

Explanation:

the answer is Cr2072- will complete the formula and form Al2(Cr207)3

aluminum has a 3+charge and the anion needs a 2- charge to balance the chargers in the compound in the following formulae

so that it will make neutral the formulae so it requires the above following formulae

Answer: The percent yield for the \(NaBr\) is, 86.7 %

Explanation : Given,

Moles of \(FeBr_3\) = 2.36 mol

Moles of \(NaBr\) = 6.14 mol

First we have to calculate the moles of \(NaBr\)

The balanced chemical equation is:

\(2FeBr_3+3Na_2S\rightarrow Fe_2S_3+6NaBr\)

From the reaction, we conclude that

As, 2 moles of \(FeBr_3\) react to give 6 moles of \(NaBr\)

So, 2.36 moles of \(FeBr_3\) react to give \(\frac{6}{2}\times 2.36=7.08\) mole of \(NaBr\)

Now we have to calculate the percent yield for the \(NaBr\).

\(\text{Percent yield}=\frac{\text{Experimental yield}}{\text{Theoretical yield}}\times 100\)

Experimental yield = 6.14 moles

Theoretical yield = 7.08 moles

Now put all the given values in this formula, we get:

\(\text{Percent yield}=\frac{6.14mol}{7.08mol}\times 100=86.7\%\)

Therefore, the percent yield for the \(NaBr\) is, 86.7 %

Answer:

I think this the asnwer a satellit

Sorry if it incorrect

Have a nice day

Answer:

The Answer is Satellite.

Explanation:

An orbit is a regular, repeating path that one object in space takes around another one. An object in an orbit is called a satellite. A satellite can be natural, like Earth or the moon.

If you needed to produce 10.7 moles of water, 1927.7 g of glucose, C6H12O6 is needed for the preparation of the solution.

The term mole is defined as one mole of any substance is exactly equal to its atomic mass or molecular mass. It is expressed in grams. The symbol of mole is represented by mol.

1 mole = 6.023 X 10²³

Molar mass of C6H12O6 = 180.16 g/mol

Mole of C6H12O6 = 10.7 mole

Mass of C6H12O6 =.?

Mole = mass / molar mass

10.7 = mass of C6H12O6 / 180.16

Now, Cross multiply

Mass of C6H12O6 = 10.7 × 180.16

Mass of C6H12O6 = 1927.7 g

Thus,  1927.7 g of glucose, C6H12O6 is needed for the preparation of the solution.

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Answer:

An alkane is a hydrocarbon in which there are only single covalent bonds. The simplest alkane is methane, with the molecular formula CH4.

Explanation:

Alkanes.

Name Heptane

Molecular Formula C7H16

Condensed Structural Formula CH3CH2CH2CH2CH2CH2CH3

Boiling Point (°C) 98.5

Hydrocarbons which are alkanes with 4 or more than 4 carbon atoms have more than one possible structural formula which is a type of chemical formula.

Structural formula helps in identifying location of chemical bonds which are present between atoms in a molecule.It consists of symbols of elements for the atoms which are connected by short lines which actually represent the chemical bonds.

Structural formulae can be deduced from molecular formulae the fragment ions are studied in the mass spectrum.It is concerned with the valency which helps in determination of of how atoms a combine in a definite ratio.

Properties of molecules are much related with their structures. It helps in showing the arrangement of atoms in a three-dimensional space.

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In general, the partitioning of an alkene, alcohol, and acid in an extraction mixture depends on their solubility and the nature of the solvent used.

Alkene: Alkenes are typically nonpolar or slightly polar compounds. In an extraction process, alkenes are more likely to partition into nonpolar solvents, such as organic solvents like diethyl ether or hexane. They will tend to form a separate layer in the extraction mixture known as the organic layer. Alcohol: Alcohols are polar compounds due to the presence of the hydroxyl (-OH) group. Their solubility depends on the length of the carbon chain and the polarity of the solvent. Lower molecular weight alcohols (such as methanol or ethanol) are more soluble in water, which is a polar solvent. Higher molecular weight alcohols may exhibit lower solubility in water and preferentially partition into the organic layer.

Acid: Acids can vary in their solubility depending on their strength and the solvent used. Strong acids, such as mineral acids (e.g., hydrochloric acid, sulfuric acid), are typically highly soluble in water due to their ionization. Weak organic acids may also be somewhat soluble in water. However, if the organic acid is relatively nonpolar, it may partition into the organic layer. It's important to note that the actual partitioning behavior can be influenced by factors such as temperature, pH, concentration, and the presence of other compounds. The choice of solvents and their polarity will determine the distribution of the alkene, alcohol, and acid between the aqueous and organic layers in an extraction process.

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In the strong acid–strong base titration, the ph is 7.0.

Titration of a solid acid with a solid base is the best of the four sorts of titrations because it includes a solid acid and solid base that totally separate in water, in this manner coming about in a solid acid-strong base neutralization reaction. This titration requires the utilization of a buret to apportion a solid base into a holder of , or vice-versa strong acid , in arrange to decide the proportionality point. The reason for a strong acid-strong base titration is to decide the concentration of the acidic solution by titrating it with a fundamental solution of known concentration, or vice-versa until neutralization happens. As both the acid and base are solid (tall values of Ka and Kb), they will both completely separate, which suggests all the atoms of acid or base will be totally partitioned into ions. At the proportionality point, rise to sums of H+ and OH- particles will combine to create H2O, coming about in a pH of 7.0 , neutral. The pH at the comparability point for this titration will continuously be 7.0.

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The incorrect interpretation of the given balanced equation is option a.

2g s + 3g O2 →2 g SO3.

The coefficient of the reacting species and products are not showing the amount in grams.

In the balanced chemical equation of a reaction, all the reactants and products are written in their perfect stoichiometry. The number of each elements in the reactant side must be equal to their number in  product side. So that the law of conservation of mass is obeyed.

The coefficients of the reactants and products can be balanced to equate the number of each elements in both side. The coefficients represent the number of moles of the reactants and products. Sometimes they are considered to be the number of reacting atoms of each elements.

In the given reaction, 2 moles of S reacts with 3 moles of oxygen gas giving 2 moles of sulphur trioxide. Here, the amount in grams are not given. Therefore, option a is incorrect.

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Your question is incomplete. But your complete question is attached below:

The acid that is not polyprotic is HC₂H₃0₂. Polyprotic acids are acids that can donate more than one hydrogen ion (proton) when they dissolve in water. These hydrogen ions are released one at a time, with each successive release corresponding to a different acid with a different acid dissociation constant (Ka) value.

Out of the four options provided, H₂SO₄, H₂CO₃, and H₃PO₄ are all polyprotic acids, meaning they can release more than one hydrogen ion when dissolved in water.

H₂SO₄ is a strong acid that is diprotic, meaning it can donate two hydrogen ions. H₂CO₃ is a weak acid that is diprotic, meaning it can donate two hydrogen ions. H₃PO₄ is a weak acid that is triprotic, meaning it can donate three hydrogen ions.

In contrast, HC₂H₃0₂ is a weak acid that is monoprotic, meaning it can donate only one hydrogen ion.

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The average atomic mass of the element in the data table is 35.8738 amu.

The average atomic mass of an element can be calculated by taking into account the abundance of each isotope of the element and the atomic mass of each isotope. The formula for calculating the average atomic mass is:

Average atomic mass = (mass of isotope 1 * abundance of isotope 1) + (mass of isotope 2 * abundance of isotope 2) + ...

In the data table you provided, there are three isotopes of an element with atomic masses of 0.3365 amu, 35.97 amu, and 37.96 amu, and corresponding abundances of 0.0632%, 99.60%, and 0.3%, respectively.

Using the formula, we can calculate the average atomic mass as follows:

Average atomic mass = (0.3365 amu * 0.0632%) + (35.97 amu * 99.60%) + (37.96 amu * 0.3%)

Average atomic mass = 0.0002 amu + 35.7448 amu + 0.1188 amu

Average atomic mass = 35.8738 amu

Therefore, the average atomic mass of the element in the data table is 35.8738 amu.

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The Fischer projections of the four aldotetroses, D- glucose, and L‑glucose are shown in the attached figures below.

In chemistry, the Fischer projection can be described as a two-dimensional representation of a 3-D organic molecule by projection. Fischer projections were proposed for carbohydrates and used by chemists, particularly in organic chemistry and biochemistry.

The main aim of Fischer projections is to show the chirality of a molecule and to differentiate between a pair of enantiomers. Some notable uses involve drawing sugars and depicting isomers.

All chemical bonds are represented as horizontal lines or vertical lines. The carbon chain is represented vertically and represented by the center of crossing lines. The orientation of the carbon chain is represented in such a way that the first carbon C₁ is at the top.

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The resultant of the reaction when their change in Enthalpy is positive, change in Entropy is negative and the gibbs free energy is positive is  non spontaneous Reaction. Under the specified conditions, this reaction does not promote the creation of products. A reaction must be endothermic, followed by a reduction in entropy, or both in order to be considered nonspontaneous.

The following are the relationships between spontaneity, entropy, and enthalpy:

Gibbs energy will be negative at all temperatures if enthalpy is negative and entropy is positive.

At low temperatures, Gibbs energy will be negative if enthalpy and entropy are both negative.

At any temperature, Gibbs energy won't be negative while enthalpy is positive and entropy is negative. There wouldn't be an unforeseen response.

At high temperatures, Gibbs energy will be negative while enthalpy and entropy are both positive.

As a result, the change in reaction free energy is what ultimately determines whether a reaction is possible.

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Answer:

This is happened because, in water there is strong intermolecular force of attraction because of H- bonding. But, in case of HCl, the force of attraction is not so strong

The state of water at room temperature is liquid while Hydrogen chloride is a gas at room temperature. In consideration of three Van der Waals forces ( Keesom,  Debye, and London) which both Water and hydrogen chloride exhibit, Water exhibits hydrogen bonding, which Hydrogen chloride doesn't.

Since water has strong hydrogen bonds, more energy is required to boil water. Water has an electronegative O, water can form hydrogen bonds with other H20 molecules. We know that the hydrogen bond is stronger than the permanent dipole interaction in hydrogen chloride.

Since more energy is required to overcome the hydrogen bond in water.

Hence, the boiling point of water is 100°C while hydrogen chloride is -115°C.

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Water does  not stick to the leaves of the plant  owing to the fact that the leaves has a waterproof cuticle.

We know that the leaves are the parts of the plant that are involved in photosynthesis. Photosynthesis is the process by which green plants produce their own food in the presence of sunlight and chlorophyll. We know that the leave has an outer protective covering.

The tissue that plays this outer covering of a plant for is the  epidermis and its waxy cuticle. It prevents damage to the plant.

Water does  not stick to the leaves of the plant  owing to the fact that the leaves has a waterproof cuticle.

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Answer:

12g

Explanation:

The following equation is given in this question:

2H2 + O2 → 2H2O

According to this balanced chemical equation, 2 moles of hydrogen gas is used to produce 2 moles of water molecule.

Hence, if 12 grams of hydrogen is used, 12 × 2/2 = 24/2

= 12 grams of H2O will be produced.

The reaction between NaOH (sodium hydroxide) and H₂SO₄ (sulfuric acid) is a double displacement or acid-base neutralization reaction.

In this reaction, the sodium hydroxide (NaOH) acts as a base and the sulfuric acid (H₂SO₄) acts as an acid. The hydroxide ion (OH⁻) from the sodium hydroxide reacts with the hydrogen ion (H⁺) from the sulfuric acid to form water (H²O), which is a neutral molecule. The remaining ions, sodium (Na+) and sulfate (SO₄²⁻), combine to form sodium sulfate (Na₂SO₄), which is a salt.

The balanced chemical equation for the reaction is:

2NaOH + H₂SO₄ → Na₂SO₄ + 2H₂O

Overall, this reaction results in the formation of a salt and water, and the acid and base cancel each other out.

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