How much heat is evolved when 275 g of ammonia gas condenses to a liquid at its boiling point?

To convert from parts per million (ppm) of calcium carbonate to grains per gallon (GPG), we use the following formula:

Hardness in GPG = Hardness in ppm / 17.14

Since we do not have the hardness in ppm, we cannot directly convert to GPG. We need more information or data to calculate the hardness in GPG.

Without the ppm of calcium carbonate, we cannot determine the hardness in grains per gallon.

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Answer:

have just recently learnt the theory of fractional and normal distillations and the basics of maximum and minimum boiling azeotropes.

Given the following choices, determine which best suits as a characteristic of a hurricane.

Answer Choices:

A. Hurricanes occur mostly inland

B. Hurricanes create widespread damage

C. Hurricanes can only last for a short amount of time

D. Hurricanes gain strength after passing overland

Best Answer: B. Hurricanes can create widespread damage.

Reason: A would not be correct since it is more of a variable, due to the fact that hurricanes usually begin near the coastlines, hurricanes are in fact capable of moving inland for atleast 100 miles before it dies down to a tropical storm or depression.

C is not correct since hurricanes can last up to a whole week which is approximately 168 hours.

D is not correct since it is another variable in which hurricanes can decrease in strength if it comes into contact with cool and dry air which is the opposite of warm and moist which it needs in order to occur.

Therefore, the best choice is B. Hurricanes can create widespread damage, hurricanes can unleash a staggering arsenal of mother nature's strength and the most damage a hurricane has caused can go up to 125 billion USD in damages.

One characteristic of hurricanes is that it: B. create widespread damage.

A natural disaster can be defined as a major adverse event that is caused by the forces of nature on planet Earth. Some examples of a natural disaster include the following:

Hurricane can be defined as an extremely large, powerful, violent storm that typically leads to the destruction of life and properties on both land and water.

In conclusion, a characteristic of hurricanes is that it is capable of creating widespread damage on planet Earth.

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There is only one possible isomer for this ion due to the square planar geometry of the Pd(II) center: Structure:  

H2O

  |
CO-Pd-Cl
  |
 CO

Label: Square planar isomer

the structures and label the types of isomers for the given ions.

a. [Cr(CO)3(NH3)3]3

There are two possible isomers for this ion:

1. Fac-isomer (facial isomer)
In this isomer, the three CO ligands and the three NH3 ligands occupy adjacent vertices of an octahedral structure around the Cr(III) center. You can imagine that each set of three ligands is situated on one face of the octahedron.

Structure:
 CO
  |
NH3-Cr-NH3
  |
 CO

Label: Fac-isomer

2. Mer-isomer (meridional isomer)
In this isomer, the three CO ligands and the three NH3 ligands are arranged in a meridional manner around the Cr(III) center. This means that each set of ligands forms a straight line that spans from one vertex of the octahedron to the opposite vertex.

Structure:
 NH3
  |
CO-Cr-CO
  |
 NH3

Label: Mer-isomer

b. [Pd(CO)2(H2O)Cl]

There is only one possible isomer for this ion due to the square planar geometry of the Pd(II) center:

Structure:
 H2O
  |
CO-Pd-Cl
  |
 CO

Label: Square planar isomer

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Answer:

The total mass will be same of both side!!!!! ig so

Answer: During succession, new species move into an area and colonize it.

Explanation: Ecological succession refers to the process of change in the composition and structure of an ecosystem over time. It occurs due to the interactions between the biotic (living) and abiotic (non-living) components of an environment. As succession progresses, new species gradually establish and thrive in the area, leading to a change in the species composition. This process can occur over a long period of time, ranging from decades to centuries, depending on various factors such as environmental conditions and the specific type of succession.

In an acidic aqueous solution, the reduction of bismuth oxide ion (BiO₃) to bismuth ion (Bi³⁺) can be represented by the balanced half-reaction:

2 BiO₃ (s) + 6 H⁺ (aq) + 12 e⁻ → 2 Bi³⁺ (aq) + 9 H₂O (l)

The reduction half-reaction involves the conversion of bismuth oxide ion (BiO₃) to bismuth ion (Bi³⁺) in acidic aqueous solution.

To balance the equation, we need to ensure that the number of atoms and charges are equal on both sides.

Start by balancing the atoms other than oxygen and hydrogen. In this case, the only relevant element is bismuth (Bi).

Since there are 3 Bi atoms in BiO₃ and 2 Bi atoms in Bi³⁺, we need a coefficient of 2 in front of BiO₃ to balance the number of Bi atoms.

Next, balance the oxygen atoms by adding water (H₂O) molecules to the side that lacks oxygen. In this case, BiO₃ already contains 3 oxygen atoms, and Bi³⁺ does not contain any oxygen atoms. Therefore, we need 3 water molecules on the product side to balance the oxygen atoms.

Balance the hydrogen atoms by adding hydrogen ions (H⁺) to the side that lacks hydrogen. In this case, BiO₃ does not contain any hydrogen atoms, and Bi³⁺ requires 9 hydrogen atoms to balance. Therefore, we need 9 hydrogen ions on the reactant side.

Finally, balance the charges by adding electrons (e⁻) to the side that is more positively charged. In this case, BiO₃ has a charge of 3- while Bi³⁺ has a charge of 3+. To balance the charges, we need to add 12 electrons on the reactant side.

The balanced half-reaction for the reduction of BiO₃ to Bi³⁺ in acidic aqueous solution is as follows:

2 BiO₃ (s) + 6 H⁺ (aq) + 12 e⁻ → 2 Bi³⁺ (aq) + 9 H₂O (l)

In an acidic aqueous solution, the reduction of bismuth oxide ion (BiO₃) to bismuth ion (Bi³⁺) can be represented by the balanced half-reaction:

2 BiO₃ (s) + 6 H⁺ (aq) + 12 e⁻ → 2 Bi³⁺ (aq) + 9 H₂O (l)

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Answer:

3) What could happen if you spot too much of a compound on the TLC plate? Answer: The spot would show trailing.

Explanation:

Answer:

ii.

Explanation:

Regulating weather patterns

Answer:

sp3d

Explanation:

The ground state electronic configuration of tin is written as; [Kr] 5s²4d¹⁰5p². Hybridization is a concept used to explain the combination of orbitals of appropriate energy to produce suitable orbitals that could be used for bonding.

In forming the compound Snf5^ -1, we have to hybridize the following orbitals on tin; 5p, 5d and 6s orbitals. This gives us a set of sp3d hybrid  hence the answer.

The volume increases to be the temperature rises, as well as decreases to be the temperature decreases.

These examples of a consequence of temperature on the volume for a given amount of a confined gas at constant stress are true in general: The volume increases to be the temperature rises, as well as decreases to be the temperature decreases. If the temperature measured in kelvin, volume as well as temperature remain directly proportional.

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A subunit of an organic compound that confers particular chemical and physical properties is termed, a functional group. Correct answer: letter C.

These groups are responsible for the reactivity of the molecule and the way it interacts with other molecules.

Functional groups are important components of organic compounds. They are groups of atoms that are responsible for the unique physical and chemical properties of an organic compound. These properties, in turn, determine the behavior of a compound in a variety of reactions.

Functional groups are key to understanding why organic compounds behave the way they do. For example, an organic compound with a hydroxyl group (OH) is likely to react differently than one without it. As the hydroxyl group is responsible for the compound's behavior, it can be said that the hydroxyl group is a subunit of the organic compound that confers particular chemical and physical properties.

A subunit of an organic compound that confers particular chemical and physical properties is termed ________

A) A monomer.

B) An oligomer.

C) A functional group.

D) A synthetic unit.

E) An isomer.

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Answer:

cilia cells

Explanation:

Answer:

20. mol

Explanation:

i got it right on my quiz

Answer:

the electrons would be exchanged kn the reaction = 2e

The resulting concentration of Mg(OH)2 in the final mixture is 0.091 M.

When a 5.0 mL sample of a 1.00 M solution of MgSO4 is mixed with 50.0 mL of a 2.00 M solution of NaOH, a reaction occurs between the two compounds. The balanced chemical equation for this reaction is:

MgSO4 + 2NaOH -> Mg(OH)2 + Na2SO4

To determine the resulting concentrations of the products, we need to consider the stoichiometry of the reaction and the volume of the final mixture.

First, let's calculate the number of moles of MgSO4 and NaOH used in the reaction:

moles of MgSO4 = volume (L) × concentration (M) = 5.0 mL × (1.00 mol/L) / 1000 mL/L = 0.0050 mol

moles of NaOH = volume (L) × concentration (M) = 50.0 mL × (2.00 mol/L) / 1000 mL/L = 0.100 mol

From the balanced equation, we can see that the ratio between MgSO4 and NaOH is 1:2. Therefore, the limiting reagent is MgSO4 since it is consumed completely.

Since 1 mole of MgSO4 produces 1 mole of Mg(OH)2, the resulting concentration of Mg(OH)2 can be calculated as follows:

concentration of Mg(OH)2 = moles of Mg(OH)2 / volume of final mixture (L)

= 0.0050 mol / (5.0 mL + 50.0 mL) / 1000 mL/L

= 0.0050 mol / 0.055 L

= 0.091 M

Thus, the resulting concentration of Mg(OH)2 in the final mixture is 0.091 M. Similarly, the concentration of Na2SO4 can be determined by considering the stoichiometry and the amount of NaOH used in the reaction.

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Answer:

2

Explanation:

Answer:

2

Explanation:

Answer:

False

Explanation:

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Answer:

Chemical sedimentary

Explanation:

Chemical sedimentary rocks form by precipitation of minerals from water.

Water is the most abundant substance in earth. Water is a compound because it made of a number of H₂O molecules. Water is a homogeneous compound.

Compounds are substances formed by chemical bonding of two or more elements. All the molecules in the compounds will be identical. For example CO₂ where one carbon and two oxygens covalently bond together to form the compound.

Each compound is made of a number of molecules. Thus molecules are the basic units of compounds like we say as for atoms for every substances.

There are different types of compounds based on the type of bond and number of atoms etc namely ionic compounds, covalent compounds, coordination compounds etc.

Water contains two hydrogen atoms and one oxygen thus forms one molecule of water. Similar kinds of molecules joins together to form the compound.

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The ion with electronic structure [ne]3s23p6 and atomic number 16 is the sulfur (S) ion.

The symbol for this ion depends on its charge. Sulfur has six valence electrons in its outermost shell, and when it gains two electrons, it completes its octet and becomes stable.

This results in the formation of the S2- ion, which has a charge of -2.
The symbol for the S2- ion is written as S2-.

The symbol indicates that the ion has two more electrons than the neutral sulfur atom, which has 16 protons and 16 electrons.

The square bracket notation [ne] in the electronic structure of the neutral sulfur atom indicates that it has the same electron configuration as the noble gas neon (Ne) in its outermost shell.
In summary, the symbol for the sulfur (S) ion with electronic structure [ne]3s23p6 and a charge of -2 is S2-.

The square bracket notation [ne] indicates that the neutral sulfur atom has the same electron configuration as neon (Ne) in its outermost shell.

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Carbon plays a fundamental role in the structure of organic compounds.

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Answer:

Explanation:

C

Answer:

A través del Experimento de Rutherford.

Explanation:

El experimento de la lámina de oro fue realizado en 1909 por Ernest Marsden y Hans Geiger bajo el liderazgo de Ernest Rutherford. En este experimento, se bombardeó una lámina de oro con partículas alfa y se detectó su dispersión. Se encontró que una pequeña proporción de las partículas regresan cerca de la fuente. Estos resultados fueron la base para el lanzamiento de un nuevo modelo atómico con un núcleo central cargado positivamente y con electrones cargados negativamente con pequeñas masas en relación con el núcleo y distribuidos a su alrededor.

The B: oxygen in O2 is oxidized in the given redox reaction. In a redox reaction, oxidation is the loss of electrons, while reduction is the gain of electrons. In the given reaction, oxygen gains electrons from sulfur, which means oxygen undergoes reduction. At the same time, sulfur loses electrons to oxygen, which means sulfur undergoes oxidation. Therefore, the element that is oxidized in this reaction is sulfur.

To describe the answer more accurately, it should be noted that the question is asking about which element is oxidized, not which compound or molecule. The reactants in the reaction are 2 molecules of H2S and 1 molecule of O2, and the products are 2 molecules of H2O and 1 molecule of S. It is the oxygen in O2 that is oxidized, as it gains electrons during the reaction.

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The equilibrium constant (K) at 25°C, based on the given free-energy change, is approximately 9.74.

To calculate the equilibrium constant (K) at 25°C from the free-energy change (ΔG) for a reaction, we can use the equation:

ΔG = -RT ln(K)

Where; ΔG is the free-energy change

R is the gas constant (8.314 J/(mol·K))

T is the temperature in Kelvin

K is the equilibrium constant

Given the free-energy change for the reaction is 77.12 kJ/mol, we need to convert it to joules and Kelvin:

ΔG = 77.12 kJ/mol × 1000 J/kJ

= 77120 J/mol

T = 25°C + 273.15 K = 298.15 K

Now, we can calculate the equilibrium constant (K):

K = \(e^{(-ΔG/RT)}\)

K =\(e^{(-77120J/mol}\) / (8.314 J/(mol·K) × 298.15 K))

K ≈ \(e^{(-31.024)}\)

K ≈ 9.74

Therefore, the equilibrium constant (K) is approximately 9.74 (rounded to two significant figures).

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Answer:

7,008,000

Explanation:

1. 7.008 x 10^6

2. Move the decimal point 6 times to the right and then calculate from there  

Answer:

Ability to form four covalent bonds.

Explanation:

Carbon is the first member of group 14. It is essentially a nonmetal. It is a small atom which regularly exhibits tetra valency. This means that carbon is able to form four covalent bonds to four chemical species which may be the same or different each time. This leaves room for many different possible combination patterns of carbon with other chemical species.

Hence carbon forms a very large number of compounds due to its small size and its ability for form four covalent bonds to other chemical species in any bonding situation.

Answer: the ability to form four covalent bonds

Explanation:

The final electron acceptor in aerobic respiration is oxygen (O2).The electron transport chain (ETC) in cellular respiration relies on a final electron acceptor to help oxygen get reduced into water. This is why oxygen is considered the final electron acceptor in cellular respiration.

During cellular respiration, glucose is broken down into pyruvate. Pyruvate is then transformed into acetyl CoA and enters the citric acid cycle, where it is oxidized and generates ATP, NADH, and FADH2. The final stage of aerobic respiration involves the electron transport chain, in which electrons from NADH and FADH2 are passed through a series of proteins and coenzymes in the inner mitochondrial membrane, ultimately reducing oxygen to form water.

This process is known as oxidative phosphorylation.In conclusion, the final electron acceptor in aerobic respiration is oxygen (O2), and carbon dioxide is generated in the link reaction (pyruvate oxidation) and the citric acid cycle.

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