The hazardous material "Boron tribromide, UN2692" is forbidden to be transported in _______________ mode(s) of transportation.

Answer:

B: +3

Explanation:

If Gallium loses 3 electrons, it will become an ion.

The ion will be positively charged because in this new ion, the number of electrons is lesser than the number of protons. The charge difference will impart a positive net charge on the ion.

If Gallium the loss of 3 electrons offsets the charge balance in the chemical specie. Thus, the ion will have a net +3 charge.

Answer: Fish

Explanation:

Biotic factor is one of the component of the ecosystem. It is the living component of the ecosystem. It is affected or influenced by the non-living or abiotic components of the ecosystem like water, air, sunlight, and others. Fish is an example of biotic factor which is dependent on abiotic component that is oxygen which is the chief gas required for the breathing. The oxygen is one of the components of the water. So, the oxygen is dissolved in water and the fish acquire the oxygen through water only.

Answer:

what?

Explanation:

whats the answer

Answer:

oh yea! keep up the great work buddy!!

Answer:

PbCr

Explanation:

A complex polymer built of amino acids is called a : protein. They are macromolecules made up of long chains of amino acids that are connected by peptide bonds.

These amino acids are linked together in a specific sequence dictated by the genetic information encoded in the DNA. The sequence of amino acids determines the unique structure and function of the protein.

Proteins have a wide range of functions in biological systems. They serve as enzymes, antibodies, structural components, transporters, signaling molecules, and regulators of various cellular processes. Proteins are essential for the growth, development, and maintenance of cells, tissues, and organs in living organisms.

The diversity of proteins arises from the different combinations and arrangements of the 20 different amino acids that can be found in living organisms. The specific folding and three-dimensional structure of a protein are critical for its proper functioning.

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The partial pressure of carbon dioxide in the flask is 7.10 atm and the total pressure in the flask is 11.25 atm.

The ideal gas law is a fundamental law of physics that describes the behavior of ideal gases under various conditions. It is expressed mathematically as PV = nRT, where P is the pressure of the gas, V is its volume, n is the number of moles of gas, R is the ideal gas constant, and T is the absolute temperature of the gas in Kelvin.

To find the partial pressure of carbon dioxide and total pressure in the flask, we need to use the ideal gas law:

PV = nRT

First, we need to calculate the number of moles of each gas:

nO₂ = mO₂ / MM(O₂) = 3.64 g / 32.00 g/mol = 0.1135 mol

nCO₂ = mCO₂/ MM(CO₂) = 8.53 g / 44.01 g/mol = 0.1937 mol

where m is the mass of the gas, and MM is the molar mass of the gas.

Next, we can calculate the total number of moles of gas in the flask:

ntotal = nO₂ + nCO₂ = 0.1135 mol + 0.1937 mol = 0.3072 mol

The total pressure in the flask can be calculated using the ideal gas law:

Ptotal = ntotalRT / V

where R = 0.08206 L·atm/K·mol is the gas constant.

The temperature needs to be converted to Kelvin:

T = 38°C + 273.15 = 311.15 K

Substituting the values, we get:

Ptotal = (0.3072 mol)(0.08206 L·atm/K·mol)(311.15 K) / 8.39 L

= 11.25 atm

Therefore, the total pressure in the flask is 11.25 atm.

To find the partial pressure of carbon dioxide, we need to use the mole fraction of carbon dioxide:

XCO₂ = nCO₂ / ntotal

Substituting the values, we get:

XCO₂ = 0.1937 mol / 0.3072 mol = 0.6309

The partial pressure of carbon dioxide can be calculated using Dalton's law of partial pressures:

PCO₂  = XCO₂ Ptotal

Substituting the values, we get:

PCO₂  = 0.6309 × 11.25 atm

= 7.10 atm

Therefore, the partial pressure of carbon dioxide in the flask is 7.10 atm.

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Answer:

displacement reaction..

If a new method for obtaining oil from dry oil fields is found, then we would expect to see an increase in oil production, which would lead to a leftward movement along the AD curve as demand for oil is met more easily.

However, if this increase in supply is significant enough, it could also lead to a shift of the AS curve to the right, indicating an increase in potential output. Therefore, the correct answer would be b. a movement to the left along the AD curve, and potentially a shift of the AS curve to the right. The AD curve represents the relationship between aggregate demand and the price level, while the AS curve represents the relationship between aggregate supply and the price level.
If a new method for obtaining oil from dry oil fields is found, then we will see e. the AS (Aggregate Supply) curve shift to the right. This is because the new method would increase the availability of oil, resulting in a larger supply of goods and services at the same price level, which causes the AS curve to shift to the right.

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Answer:

4092 atoms of iron i am guessing

Explanation:

Answer:

They grow slowly over time, they are made up of multiple organisms.

Explanation:

One polyp is one individual. A Coral is made up of several polyps. Each polyp is less than 1 centimeters but a coral is made of many polyp so the coral itself cant be 1 centimeters across.

It is true that according to Hubble's law, the farther away a galaxy is, the faster it is moving away from us.

It is true that the formation of a star occurs when nuclear fusion begins to fuse light elements into heavier ones;

The distance to the nearest stars can be determined by parallax, the apparent shift of a start against background stars observed as the earth moves along its orbit. (Option B)

Based on the accompanying H-R Diagram, the type of start that has the greatest temperature is the blue giants (Option C)

Two hydrogen atoms come together in a nuclear fusion reaction to produce Helium Gas. (Option A).

Hubble's law, which essentially states that the velocity of a galaxy (or, as it is commonly plotted, its redshift) is precisely proportionate to its distance, also reveals crucial information about the condition of the universe. There should be no relationship between distance and velocity if the cosmos is static and unchanging.

Hubble's law is the physical cosmology observation that galaxies move away from Earth at a rate proportionate to their distance. In other words, the farther they are from Earth, the quicker they are travelling away.

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308g more sugar can be dissolved in 100g of water at 100°C compared to 0°C.

Based on the given solubility data for sugar, we can determine the difference in sugar solubility at 0°C and 100°C:

The difference in sugar solubility between these two temperatures can be calculated as follows:

487g (at 100°C) - 179g (at 0°C) = 308g

Therefore, 308g more sugar can be dissolved in 100g of water at 100°C compared to 0°C.

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How much more sugar can be dissolved in 100g of water at 100°C compared to 0°C?

False. solid alkanes are found on the surface of many fruits and vegetables.

Solid alkanes are not found on the surface of many fruits and vegetables. Alkanes are hydrocarbon compounds consisting of only carbon and hydrogen atoms. They are typically found in the form of gases or liquids at standard temperature and pressure. The waxy coating on the surface of fruits and vegetables, known as the cuticle, is composed of various compounds including lipids, waxes, and other organic materials. These substances provide protection to the plant surface, preventing water loss and acting as a barrier against pathogens and pests. However, they are not composed of solid alkanes. While some fruits and vegetables may have a waxy surface, the specific composition of the cuticle can vary among different plant species. It is primarily composed of complex mixtures of lipids, which can include fatty acids, esters, sterols, and other similar compounds, but not solid alkanes.

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To "fix" hydrogen means to convert it from its gaseous form (H₂) into a chemically usable form or compound.

Fritz Haber's method for fixing hydrogen, known as the Haber-Bosch process, involves combining hydrogen (H₂) with nitrogen (N₂) from the air to produce ammonia (NH₃) through a catalytic reaction. This ammonia can then be used to produce fertilizers, explosives, and other important chemicals.

Fritz Haber's method is considered the most important invention of the twentieth century because it revolutionized agriculture and food production. The production of ammonia-based fertilizers made it possible to significantly increase crop yields, addressing global food shortages and supporting a growing population.

This process had a profound impact on global agriculture and played a crucial role in the Green Revolution, which helped alleviate hunger and improved living standards worldwide.

Additionally, the Haber-Bosch process also enabled the production of synthetic materials, such as plastics and fibers, that have transformed various industries and contributed to technological advancements.

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Answer:

I believe your answer should be 1 because filteration is a process of removing solid particuless/ and or gasses of matter from the lake in this interpretation. and filtration is used to allow fluidly bodies through but not matter.

The process of filtration is working to remove residue from the lake water. The correct option is A.

Filtration is basically a physical separation method that utilize a filter medium along with a complex structure through that only fluid can pass to separate solid matter and fluid from a mixture.

Filtration is the process of separating suspended particles from a fluid by passing the fluid through a porous material while retaining the suspended particles.

It is the separation of solids from a fluid (liquid or gas) by passing it through a filtering device.

The various types of filtration are detailed below.

Thus, the correct option is A.

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Answer:

They use the pH scale

Explanation:

The strong acid and strong base has high rate constant of dissociation. Weak acid and base are the one whose rate constant for the dissociation is low, they do not dissociate readily in water. Scientist use pH scale to classify substances that are either an acid or a base.

Acid is a solution which releases H⁺ hydrogen ion when dissolved in water. Base are the solution which releases hydroxide ion OH⁻ ion when dissolved in water. . At room temperature pH scale is between 0 to 14. pH of neutral solution is 7.

The pH of acid is between 0-7 on pH scale. acid turns blue litmus paper to red. Acids have sour taste and corrosive nature. Mathematically the concentration of hydrogen ion can be calculated using this formula

Mathematically,

pH=-log[H⁺]

Therefore, scientist use pH scale to classify substances that are either an acid or a base.

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Answer:

paleontologists is the answer to scientist who studies fossil

The solubility of a gas in a liquid under different pressures can be calculated using Henry's Law.

The solubility of a gas in a liquid under different pressures can be calculated using Henry's Law, which describes the relationship between the pressure of a gas and its solubility in a liquid. According to Henry's Law, at a constant temperature, the solubility (S) of a gas in a liquid is directly proportional to the partial pressure (P) of the gas above the liquid.

Mathematically, Henry's Law is expressed as:

S = k * P

Where:

S = Solubility of the gas in the liquid (usually in mol/L or g/L)

k = Henry's Law constant, which is specific to the gas and the solvent at a given temperature (units depend on the units of pressure and solubility chosen)

P = Partial pressure of the gas above the liquid (usually in atm or kPa)

To calculate the solubility of a gas in a liquid under different pressures, you would typically perform the following steps:

Determine the Henry's Law constant (k) for the specific gas and solvent at the given temperature.

Measure or obtain the partial pressure (P) of the gas above the liquid at the desired pressure conditions.

Use the Henry's Law equation to calculate the solubility (S) of the gas in the liquid:

S = k * P

The solubility will be in units of mol/L (molarity) or g/L, depending on the units used for the Henry's Law constant and partial pressure.

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Answer: water

Explanation: H is the lightest atom, much less than half the weight of the next lightest, C

The statement C, "The nucleus contains protons and neutrons," is true regarding the composition of an atom among the others.

The number of protons and neutrons in the atom's nucleus are not always equal in an atom.

Instead of electrons, protons are present in the atom's nucleus.

Protons and neutrons are present in the nucleus. Instead of protons, the atom's nucleus is circled by extremely fast electrons.

An atom is chemical structure with protons at its centre and electron revolving around it in predetermined energy shells. The majority of the mass of an atom is contributed by protons and neutrons.  Every atom is about the same size. As a result, C is the correct answer.

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When it comes to the make-up of an atom, among other things, the statement C, "The nucleus contains protons and neutrons," is correct.

In an atom, the number of protons and neutrons in the nucleus is not necessarily equal. The atom's nucleus contains protons rather than electrons. The atom's nucleus is surrounded by incredibly fast electrons rather than protons. An atom is a chemical structure made up of protons in the centre and electrons orbiting in preset energy shells surrounding it. The protons and neutrons in an atom make up the majority of its mass. The size of each atom is roughly the same. Therefore, C is the right response.

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Answer:

Óxido de magnesio

Concepto:Es un óxido metálico, formado por magnesio y oxígeno, de estructura iónica cuya fórmula química es MgO.

This reaction results in the formation of a new C-C bond and The product of this reaction is an amine with a longer carbon chain. The correct options are B) and C).

When a nitrile reacts with a Grignard or organolithium reagent followed by an aqueous workup, it undergoes a nucleophilic addition reaction. The carbon of the nitrile acts as an electrophile, and the carbon of the organometallic reagent acts as a nucleophile. The reaction leads to the formation of a new carbon-carbon (C-C) bond. The resulting product is an amine with a longer carbon chain than the original nitrile. The addition of the organometallic reagent introduces alkyl or aryl groups to the nitrogen atom, extending the carbon chain.

Hence options B and C are correct.

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Answer:

a. H₂(g) + Cl₂(g) ⇒ 2HCl (g)

HCl (g) + H₂O (l) ⇒ H₃O⁺ (aq) + Cl⁻ (aq)

b. 0.999 mol

Explanation:

a. Write the balanced equation for the synthesis of hydrochloric acid.  

The balanced equation for the synthesis of hydrochloric acid is thus

H₂(g) + Cl₂(g) ⇒ 2HCl (g)

HCl (g) + H₂O (l) ⇒ H₃O⁺ (aq) + Cl⁻ (aq)

b.  How many moles of chlorine are  required for the production of 72.92 g hydrochloric acid?

We need to find the number of moles of HCl contained in 72.92 g. So, molar mass M of HCl = molar mass of hydrogen + molar mass of chlorine

molar mass of hydrogen = 1 g/mol

molar mass of chlorine = 35.5 g/mol

So, molar mass of HCl = 1 g/mol + 35.5 g/mol = 36.5 g/mol.

We now find the number of moles n of HCl in 72.92 g from n = m/M where m = mass of HCl = 72.92 g

n = 72.92 g/36.5 g/mol = 1.998 mol.

From the balanced chemical equation, 1 mol of chlorine atoms produces 2 moles of hydrogen chloride gas. Therefore, the number of moles of chlorine atoms produces 1.998 mol HCl or 72.92 g HCl is 1 mol × 1.998 mol/2 mol = 0.999 mol

Answer:

Complete the table to show the relative charge of each particle and the number of each particle found in a

140 Ce2+ ion.

Particle

Relative charge of each particle Number of each particle present

in a 140 Ce2ion

proton

neutron

electron

1.0.1 58. 82. 60

O -1.0, +1 58. 82. 60

0-1.0. + 1 58, 82, 56

O +1, 0, -1 58, 82, 56

Explanation:

The pH of the buffer solution after the addition of 0.020 mol of HCl is approximately 7.779.

A buffering agent is a substance that can withstand tiny additions of bases or acids without changing its pH. A weak acid with its conjugate base, and a base that is weak and its conjugate acid, make up the compound.

Small amounts of additional acid or base can be neutralised by the weakened acid or base while significantly altering the acidity of the solution in question. This is due to the fact that the acid that is weak and the base it conjugates with (or a base that is weak and its conjugated acid) exist in the solution in nearly equal proportions and can engage in a reversible process that preserves the pH..

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Answer:

Stamens

Explanation: