How many different crystalline structures exist?

A.4

B.6

C.8

D.12

To calculate the molar mass of the unknown compound, we can use the ideal gas law equation g/mol is 33.9 g/mol.

I apologize for any confusion. Could you please provide more specific information or context regarding the compound you are referring to? Without knowing the specific compound or additional details, it is difficult to provide a meaningful response.In chemistry, a compound refers to a substance composed of two or more different elements chemically bonded together. For example, water (H2O) is a compound composed of hydrogen and oxygen.Compound Interest In finance, compound interest refers to the interest that is calculated on the initial principal as well as the accumulated interest from previous periods. This means that the interest earned in each period is added to the principal, and subsequent interest is calculated based on the new total.

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The balanced equation is, 2C₂H₆ + 7O₂ →  4CO₂ + 6H₂O.

The reaction's balanced equation is as follows.

C₂H₂+O₂ → CO₂+H₂O

Water and carbon dioxide gas are created when dimethyl ether and oxygen combine.

Following is the reaction's balanced chemical equation:

2C₂H₆ + 7O₂ →  4CO₂ + 6H₂O.

Three moles of water and two moles of carbon dioxide gas are produced in this reaction when one mole of dimethyl ether combines with two moles of oxygen gas.

According to the law of conservation of mass, the mass of the reactants and products in a chemical reaction should be equal. As a result, each element's number of atoms stays constant throughout the chemical reaction. As a result, the chemical equation that represents the chemical process needs to be balanced. A chemical equation is considered to be balanced when the sum of the atom counts on the reactants and products sides equals one.

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Complete question -

Balance the given equation -

__C2H2 + __0₂ → __CO₂ + __H₂O

Answer:

1. Hidracidas a. MX

2 Acidas c. MHXO

3. Oxacidas  b. MXO

4. Basicas d. M(OH)X

Explanation:

¡Hola!

En este caso, de acuerdo con el concepto de sal, la cual está generalmente dada por la presencia de al menos un metal y un no metal, es posible encontrar cuatro tipos de estas; hidrácidas, oxácidas, básicas y ácidas, en las que las primeras dos son neutras pero la segunda tiene presencia de oxígeno, la tercera tiene iones hidróxido adicionales y la cuarta iones hidrógeno de más.

Debido a la anterior, es posible relacionar cada pareja de la siguiente manera:

1. Hidracidas a. MX

2 Acidas c. MHXO

3. Oxacidas  b. MXO

4. Basicas d. M(OH)XO

En las que M se refiere a un metal, X a un no metal, H a hidrógeno y O a oxígeno.

¡Saludos!

If all the eg orbitals are full, it is impossible to promote an electron from the t2g level to the eg level because there are no empty energy states.

The energy of the photon must be sufficient to promote an electron to a higher energy level.2. Draw the crystal field splitting diagram for octahedral Zn^2+ and Ca^2+ complexes. Predict the color of aqueous solutions of Zn^2+ sals and Ca^2+ salts. Does it matter if the complexes are high-spin or low-spin. The crystal field splitting diagram for Zn2+ and Ca2+ are as follows: Zn2+:

It is colorless in both high-spin and low-spin complexes. Ca2+:

In high-spin complexes, it is colorless, but in low-spin complexes, it is purple.

To summarize, the color of Zn2+ complexes is colorless in both high-spin and low-spin complexes. The color of Ca2+ complexes is dependent on the spin-state, being colorless in high-spin complexes and purple in low-spin complexes.

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Answer:

The higher its electronegativity, the more an element attracts electrons.

Explanation:

Electronegativity is a property that describes the tendency of an atom to attract electrons (or electron density) toward itself. An atom's electronegativity is affected by both its atomic number and the size of the atom.

The oxidation number of chromium is +6. In the reaction, it is reduced, meaning its oxidation number decreases. The final oxidation number of chromium is +3.

In the reaction represented by the Cr₂O₇²⁻ ion, the element chromium (Cr) is reduced. Its oxidation number changes from +6 to +3.

In the Cr₂O₇²⁻  ion, each oxygen (O) atom has an oxidation number of -2. The overall charge of the ion is 2-, which means the total oxidation numbers of all the atoms should add up to -2. Since there are seven oxygen atoms, their total oxidation number is (-2) × 7 = -14.

To determine the oxidation number of chromium (Cr), we can set up the following equation;

2(Cr) + 7(-2) = -2

Simplifying the equation, we have;

2Cr - 14 = -2

By solving for Cr, we get;

2Cr = 12

Cr = 6

Initially, the oxidation number of chromium is +6. In the reaction, it is reduced, meaning its oxidation number decreases. The final oxidation number of chromium is +3.

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Ionic compounds are created through the gain and loss of electrons. The attraction of the opposing charges causes the two atoms to stick together, forming a strong, long-lasting chemical bond.

Elements can either absorb or lose electrons to attain their closest arrangement as a noble gas. When ions come together to complete the octet, they become more stable. In a reaction with nonmetals, metals normally lose electrons to complete their octet while nonmetals typically receive electrons to do the same. Metal atoms lose electrons from their outer shell when they generate ions, which are positive because they have more protons than electrons. The resultant ions are fully enclosed in their shells. The ions' electrical structure resembles that of a noble gas (group zero element), a whole outer covering. Nonmetals have higher ionization energies and electron affinities than metals, which make it simpler for them to accept electrons and more challenging for them to lose them. Nonmetals are further to the right of metals on the periodic table. They almost make up a whole octet of eight electrons and have more valence electrons.

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Answer:

it holds reactant molecules in a good position for then to react

Answer:

D. It holds reactant molecules in a good position for them to react.

Explanation:

Got a 100 on e2020.

The isotope that has a half-life of 4.5 billion years is isotope B.

The half-life of a substance is the time taken for half the amount of atoms or particles present in a given sample to decay or disintegrate.

The half-life of isotopes is important property used to determine the age of substances.

The half-life of the four parents as shown in the graph can be read off from the time when the initial mass of the parent isotope reduces by half.

From the graph, the half-life of the isotope that corresponds to a time of 4.5 billion years is isotope B.

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Answer:

3.57 m

Explanation:

Expressed in the correct number of significant digits, The product of the number 1000 and the measurement 0.00357 m will give us;

1000 × 0.00357 = 3.57 m

The correct number of significant figures is three significant figures as seen in 3.57 m

Answer:

tantalum

i hope this helps<33 :)))))

Explanation:

The force of gravity acting on an object is given by :

W = F = mg

Where W is the weight of an object

The force of gravity on house is 300,000 N. The force of gravity pulling down on your house would be exactly twice as much if your house has twice as much as mass because force of gravity is directly depends on mass.

An emulsion is a mixture of two liquids that are not normally soluble in each other, such as oil and water. The liquids are held together by an emulsifying agent, such as lecithin, which acts as a stabilizer.

Using brine can help with an emulsion because the salt in the brine can help to break down the proteins in the emulsifying agent, causing it to bind more strongly with the liquids and improving the stability of the mixture. Additionally, the high salt content in brine can also help to inhibit the growth of bacteria, which can be beneficial when working with perishable ingredients in an emulsion.

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Answer:

18.32L

Explanation:

sana makatulong

Answer: 2.78

Explanation:

just counted the places and then did some math on the calculator

The primary intermolecular force responsible  here is london dispersion forces

An intermolecular force is an attractive force that arises between the positive components or also called as  protons  of one molecule and the negative components or  electrons of another molecule. Various physical and also chemical properties of a substance are dependent on this force.

The London dispersion force is a temporary attractive force that generally results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles. This force is sometimes called an induced dipole-induced dipole attraction as well

This type of intermolecular force of attraction is generally seen in water and methanol system.

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Answer:

Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the same.

Explanation:

Answer:

Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the same.

Explanation:

im smart

70 cubic centimeters of 6% saline solution should kent mix with 70 cubic centimeters of a 16% saline solution to produce 11% saline solution

To determine the amount of a 6% saline solution that should be mixed with 70 cubic centimeters of a 16% saline solution to obtain an 11% saline solution, we can use a mixture equation based on the principle of conservation of mass.

Let's assume x represents the volume of the 6% saline solution to be added in cubic centimeters.

The amount of salt (in grams) in the 16% saline solution is given by:

Amount of salt in 16% solution = 70 cubic centimeters * 0.16 (salt concentration)

The amount of salt (in grams) in the 6% saline solution to be added is given by:

Amount of salt in 6% solution = x cubic centimeters * 0.06 (salt concentration)

The total amount of salt (in grams) in the resulting 11% saline solution is given by:

Amount of salt in resulting solution = (70 + x) cubic centimeters * 0.11 (salt concentration)

According to the principle of conservation of mass, the amount of salt in the initial solution must be equal to the amount of salt in the resulting solution. Therefore, we can set up the following equation:

Amount of salt in 16% solution + Amount of salt in 6% solution = Amount of salt in resulting solution

70 * 0.16 + x * 0.06 = (70 + x) * 0.11

11.2 + 0.06x = 7.7 + 0.11x

0.11x - 0.06x = 11.2 - 7.7

0.05x = 3.5

x = 3.5 / 0.05

x = 70

Therefore, Kent should mix 70 cubic centimeters of the 6% saline solution with the 70 cubic centimeters of the 16% saline solution to produce an 11% saline solution.

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Answer:

4:D 5:D

Explanation:

Answer:is a trace metal of severe toxicity. Its health concerns via consumption of contaminated vegetables have often been overlooked or underestimated

Explanation: Read it carefully and it explains

Giant molecules are also referred to as macromolecules and polymers when numerous molecules are combined. These atoms are arranged in a three-dimensional structure and are joined by covalent bonds.

A giant molecule, also known as a macromolecule, is a usually large molecule crucial to biophysical processes, such as a protein or nucleic acid. It is made up of many atoms that are covalently bound. Large non-polymeric molecules including lipids and macrocycles, as well as biopolymers, are the most prevalent macromolecules in biochemistry. In addition to synthetic fibers, giant molecules can also be found in research materials like carbon nanotubes.

Different experts use different terminology for giant molecules. For instance, in biology, giant molecules refer to the four immense molecules that make up living things, while in chemistry, it refers to aggregates of two or more molecules that are held together by intermolecular forces rather than covalent bonds yet that is difficult to dissolve apart. The term giant molecule is frequently referred to as high polymer in British English.

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You can obtain approximately 258.56 ml of a 0.50 M solution by diluting 140.8 ml of a 0.92 M solution.

To determine the volume of a 0.50 M solution obtained from diluting 140.8 ml of a 0.92 M solution, we can use the formula for dilution:

C₁V₁ = C₂V₂

Where:

C₁ = initial concentration

V₁ = initial volume

C₂ = final concentration

V₂ = final volume

We need to solve for V₂, the final volume of the 0.50 M solution.

Given:

C₁ = 0.92 M

V₁ = 140.8 ml

C₂ = 0.50 M

Rearranging the formula, we have:

V₂ = (C₁ * V₁) / C₂

Substituting the given values, we get:

V₂ = (0.92 M * 140.8 ml) / 0.50 M

The units of moles cancel out, leaving us with the final volume in ml:

V₂ = (0.92 * 140.8) / 0.50

V₂ ≈ 258.56 ml

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Answer:

c

Explanation:

Answer:

the answer of the question is C

Answer:

yes they're gay

Answer:

A chemical change has occurred, with energy being given off.

Explanation:

The liquids mix and the stick gives off energy in light form

Answer:

1.20 mole

Explanation:

1 Mole of Cu reacts to form  =  1 Mole of Hg

(1.20 mol × 1 mol) ÷ 1 mol

1.20 mol of Hg

Answer:

I cant help you because you didn't provide a picture for the graph

Explanation:

This law states that matter can neither be created nor destroyed in an ordinary chemical reaction, but can change from one form to another.

What this implies is that when two elements or compound combine as a reactant to form a product, there's no loss of matter and the mass of the reactants must be equal to the mass of the product.

Given that

AlBr₃ + K₂SO₄ → KBr + Al₂(SO₄)₃

If we look closely at the above reaction, we would see that aluminuim is not balanced, potassium is also not balanced, bromine is not balance as well as sulphur and oxygen.

Let's put two moles attached to the AlBr₂ and three moles of K₂SO₄

2AlBr₃ + 3K₂SO₄ →

This would give us

6KBr + Al₂(SO₄)₃

If we add the two equations together,

2AlBr₃ + 3K₂SO₄ → 6KBr + Al₂(SO₄)₃

From the above, we have

2 atoms of Al on the reactant side and 2 atoms of Al on the product side

6 atoms of Br on the reactant side and 6 atoms of Br on the product side

6 atoms of K on the reactant side and 6 atoms of K on the product side

3 atoms of S on the reactant side and 3 atoms of S on the product side

12 atoms of O on the reactant side and 12 atoms of O on the product side