*
Determine the electronegativity difference (AEN) and the type of bond formed
(ionic, polar, non-polar).
BaCl2
Nyour answer

If the oxygen in the air reacts with iron metal in a nail to produce iron (III) oxide, the limiting reactant would be iron.

They are reactants that are limited in supply in reactions and thus, determine the total amount of products that would be formed.

Oxygen is abundant in the air, unlike iron in nails.

Thus, there is an unlimited amount of oxygen that can react with iron. However, the amount of iron in nails, which is limited, will determine the total amount of rust that would be formed.

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The solubility product expressions for the CuBr, ZnC₂O₄ and Ag₂CrO₄ will be represented as [Cu⁺][Br⁻], [Zn²⁺][C₂O₄²⁻] and [Ag⁺]²[CrO₄²⁻] respectively.

The solubility product expression or constant is denoted by Ksp​, and it is the equilibrium constant for a solid substance dissolving in an aqueous solution.

Hence balanced equations with solubility product expressions will be shown above.

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Answer:

A change in state of matter

Explanation:

» Concepts

A chemical change is a change in a substance's chemical composition, causing it to go from one thing to a completely new thing. You can't go back to the original thing with a chemical change. A sound, new substance,  odor production, gas release, and light production are all signs of a chemical change

With a physical change, you can easily go back to any state of matter. For example, if you melt an ice cube into water, just freeze it up again.

Para preparar una disolución de concentración 5% v/v de ácido clorhídrico se debe usar 96 ml de HCl (0.5 M) por cada dos litros de agua.

El porcentaje volumen a volumen (v/v) depende del volumen de soluto, en este caso HCl, y de solvente, en este caso, agua.

La masa molar de HCl es 36,4 gramos (g) por cada mol, lo cual indica  que 1 mol de HCl representan 36,4 g.

En conclusión, para preparar una disolución de concentración 5% v/v de ácido clorhídrico se debe usar 96 ml de HCl (0.5 M) por cada dos litros de agua.

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Amino acids are categorized by their chemical properties on the basis of the sequence of side chain (R group).

Amino acids are known as the 'building blocks of the life' as they help in the formation of proteins inside the body.

Side chain of amino acids is specific in nature and are known by the name of R group, these R groups are attached with the alpha carbon atom. R groups characterizes below properties of the molecule:

Hence R group describes the chemical properties of amino acids.

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Answer:

The histosols of peat pogs are soils rich in organic material but poor in mineral nutrients, and are not fertile. Conversely, aridosols (desert soils) have an abundance of mineral nutrients but a dearth of organic matter and are also not fertile.

hope i help✨!

The moles of aluminum sulfate that could be produced from 32.7 grams of aluminum nitrate is 0.07 moles.

Relation between the mass and moles of any substance will be represented as:

n = W/M, where

W = given mass of aluminum nitrate = 32.7g

M = molar mass of aluminum nitrate = 213 g/mol

Moles of aluminum nitrate = 32.7 / 213 = 0.154 mol

Given chemical reaction is:

3Na₂SO₄(aq) + 2Al(NO₃)₃(aq) → Al₂(SO₄)₃(s) + 6NaNO₃(aq)

From the stoichiometry of the reaction it s clear that,

2 mole of Al(NO₃)₃ = produces 1 mole of Al₂(SO₄)₃

0.154 mole of Al(NO₃)₃ = produces (1/2)(0.154)=0.07 mole of Al₂(SO₄)₃

Hence produced moles of aluminum sulfate is 0.07 moles.

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Answer:

single replacement

Explanation:

The H2 in the sulfuric acid is replaced by the solid zn to form the salt zinc sulfate, ejecting the hydrogen ions which become an h2 molecule. This is also a redox reaction as Zn is oxidized and the H+ ions are reduced.

Answer:

photoelectric effect, phenomenon in which electrically charged particles are released from or within a material when it absorbs electromagnetic radiation. The effect is often defined as the ejection of electrons from a metal plate when light falls on it.

Answer: The Photoelectric Effect occurs when a light withdraws an electron from a metal. The light must have at minimum the necessary energy to expel a particle from the surface of the metal. As a lack of a better description, consider sodium metal.

Explanation:

Taking into account the reaction stoichiometry, 421.48 grams of NaC₂H₃O₂ are formed from 5.14 mole of sodium bicarbonate.

In first place, the balanced reaction is:

HC₂H₃O₂ + NaHCO₃ → NaC₂H₃O₂ + CO₂ + H₂O

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

The molar mass of the compounds is:

Then, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

The following rule of three can be applied: if by reaction stoichiometry 1 mole of NaHCO₃ form 82 grams of NaC₂H₃O₂, 5.14 moles of  NaHCO₃ form how much mass of NaC₂H₃O₂?

[tex]mass of NaC_{2} H_{3} O_{2} =\frac{5.14 moles of NaHCO_{3}x82 grams of NaC_{2} H_{3} O_{2}}{1 mole of NaHCO_{3}}[/tex]

mass of NaC₂H₃O₂= 421.48 grams

Then, 421.48 grams of NaC₂H₃O₂ are formed from 5.14 mole of sodium bicarbonate.

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Physical weathering i s the weathering happens due to force of  water, ice or wind, and chemical weathering is the force of the rocks into the other rocks.

Chemical weathering is the erosion of rocks due to the force of water, air, or ice or other weathering elements.

Physical weathering is the erosion done by the force of other rocks into the rocks.

Thus, physical weathering i s the weathering happens due to force of  water, ice or wind, and chemical weathering is the force of the rocks into the other rocks.

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Answer:

50.228L of H2.

Newton's law of motion states the relationship between the force acting on the body in motion. The relation between force, mass, and acceleration is given by Newton's second law.

Newton's second law states the relationship between mass, force, and acceleration. It relates the force with the change of the motion of an object with a mass.

Newton's second law is given as,

[tex]\rm F = ma[/tex]

Where F is force, m is the mass of the object and a is the acceleration.

Newton's first law is about inertia, the third law is about the law of action and reaction, and the fourth law is about the law of gravitation.

Therefore, option B. Newton's second law states the relationship between force, mass, and acceleration.

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Answer:

615.13 ml

Explanation:

P1 V1 = P2 V2

1100  * 425  = 760 * V2

V2 = 615.13 ml

The answer is 4.9 moles of salt will be needed to add to 1 kg of water to change the boiling point by 5 °C.

Boiling point elevation is the phenomenon that occurs when the boiling point of a liquid (a solvent) is increased when another compound is added, such that the solution has a higher boiling point than the pure solvent.

Boiling point elevation occurs whenever a non-volatile solute is added to a pure solvent.

ΔT = i * Kb * m

where m, Kb and i are the molality of solution, ebullioscopic constant and Van't Hoff factor respectively

The data given in the question is ΔT = 5 °C

mass of solvent = 1 kg

Kb = 0.51 °C/(mol/kg)

Van't Hoff Factor for NaCl is 2

Substituting the values in the above equation

[tex]\rm 5 = \rm\dfrac{2\times0.51\times moles \;of \;salt}{1}[/tex]

[tex]\rm moles \;of \;salt = \rm\dfrac{5}{2\times0.51}[/tex]

moles of salt = 4.9

Therefore 4.9 moles of salt will be needed to add to 1 kg of water to change the boiling point by 5 °C.

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When you put one hand in ice water and the other in warm water, the hand in warm water will feel the room temp water cooler, and the hand in cold water feel room temperature water warmer.

The ability of a body to adjust to temperature is called thermal adaptation. Mammals are the animals who can adjust the temperature of their body.

The reptiles are not able to adjust their body temperature, because they are poikilothermic. They have to take the help of outer environment to adjust their body temperature.

Thus, when you put one hand in ice water and the other in warm water, the hand in warm water will feel the room temp water cooler, and the hand in cold water feel room temperature water warmer.

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Resultant aqueous solution of a hydrogen oxalate salt is basic in nature.

pH scale is used to determine the acidity, basicity or neutral nature of any solution.

Chemical equation for the given salt in an aqueous solution will be shown as:

NaHC₂O₄ + H₂O → NaOH + H₂C₂O₄

From the equation it is clear that reaction produces-

So that resultant solution is basic in nature.

Hence the aqueous solution of salt is basic.

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Answer:

acidic

Explanation:

The HC2O−4 ion is amphiprotic.

As an acid, it has the given Ka2 of HC2O−4 is 6.1 × 10^−5.

To find the Kb, use the relationship between Ka1 and Kb for the conjugate acid of a base.

The Kb of HC2O−4 is 1.0 × 10^−14 / 5.9 × 10^−2 ≈ 1.7 × 10^−13.

Since Ka2 > Kb, the solution is acidic.

For reactant side

For product side

Oxidation no ne x

Loss of electron is oxidation

Option B

Answer:

The answer is 102.3!

Explanation:

you get this by multiplying 34.1 x 3 to get 102.3.

Wondering why you multiply 34.1 times 3?

WELLLLLLLLLLL...

when you get 1 mole of h202, you get 34.1 so if you ask for 3 moles of H202, you get 102.3!

Answer:  -Ionic bonds form when one atom provides electrons to another atom. Covalent Bonds: Covalent bonds form when two atom shares their valence electrons. Metallic Bonds: Metallic bonds form when a variable number of atoms share a variable number of electrons in a metal lattice.

-Covalent Bonds.

Covalent Compounds. Contain no metals and no ions. Covalent compounds contain nonmetals only.

Example:

Ionic Compounds. A metal with a non-metal. Doesn't use prefixes for naming. Name the metal and change the nonmetal ending to -ide.

Explanation: Ionic bonds form when a nonmetal and a metal exchange electrons, while covalent bonds form when electrons are shared between two nonmetals. An ionic bond is a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions.

The number of ions of ammonium are 6.48e + 22.

The mole is a SI unit of measurement that is used to calculate the quantity of any substance.

You have 0.07 mols (NH4)2SO4.

There are [tex]6.022 \times 10^2^3[/tex] present in one mole of (NH₄)₂SO₄, so for 0.054 moles, there will be

[tex]6.022 \times 10^2^3 \times 0.054 = 3.24 \times 10^2^2[/tex]

Since there are two ammonium in 1 molecule of ammonium sulfate, there will be twice ions present in an ammonium sulfate molecule.

[tex]3.24 \times 10^2^2 \times 2 = 6.48e +22[/tex]

Thus, the number of ions are 6.48e + 22.

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Answer:

No it doesn't satisfy the Law of Conservation of Mass.

Explanation:

A balanced chemical equation obeys the law of conservation of mass.

According to the information in the graph, it can be inferred that the amount of solute that will precipitate out of solution at 20°C is 130 grams.

To calculate the amount of solute that precipitates out of solution we must identify the solute data at 80°C and 20°C and identify the difference as shown below:

According to the above, the amount of solute that will precipitate out of solution due to the change in temperature is 130 grams of KNO3.

Note: This question is incomplete because the graph is missing. Here is the graph

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Intermolecular forces are the forces present between ions, atoms, and molecules. Dipole-dipole is the attractive force that must be overcome.

Attractive forces are the intermolecular forces present between the molecules and bind them together. Dipole-dipole forces, London dispersion forces, Hydrogen bonding, and Induced-dipole forces are types of attractive intermolecular forces.

Dipole-dipole forces are the attractive forces that are present between the positive of the polar and the negative of the nonpolar molecule. The chloroform molecule is polar and has strong dipole interaction.

Therefore, dipole-dipole forces must be overcome.

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Maybe this can help.

In mechanics, speed increase is the pace of progress of the speed of an article regarding time (acceleration). Speed increases are vector amounts (in that they have greatness and direction). The direction of an item's speed increase is given by the direction of the net power following up on that article. The size of an item's speed increase, as depicted by Newton's Second Law, is the consolidated impact of two causes:

the net equilibrium of all outer powers acting onto that item — size is straightforwardly relative to this net coming about force;

that article's mass, contingent upon the materials out of which it is made — extent is conversely relative to the item's mass.

There are two ways of thinking about it:

Reasons

Hope that helps!