PLEASE ANSWER IF ITS CORRECT I WILL MARK IT AS BRAINLIEST PLZ??

What do you think would happen if the temperature of a gas is higher than the other when applying Graham's Law? *
A) There will be no effect on the gas
B) The kinetic energy of the gas particles would increase
C) The volume of the gas particles would increase

A polymer is formed by a chemical process called polymerization. During polymerization, small molecules, called monomers, combine to form a large chain-like molecule. When you change the monomer, you can create a new polymer.

The given monomer is shown as C₀NCIHIDI₀C. The polymerization process produces a small molecule as well. The formula for the small molecule produced is (HCl).

The modification of monomers to create one repeat unit of the polymer are given below:

Step 1: Draw the structure of the given monomer, which is C₀NCIHIDI₀C.

Step 2: Identify the repeating unit in the structure. In this case, the repeating unit is C₀NCI.

Step 3: Write the repeating unit in brackets and add the subscript 'n' to show the number of repeating units in the polymer. So, the polymer will look like this: (C₀NCI)n.

Step 4: To show the bond between the repeating units, add a bond sign, which is usually '—'. Therefore, the polymer is represented as: (C₀NCI)n—.

The small molecule produced in the reaction is hydrogen chloride (HCl). HCl is formed due to the elimination of a hydrogen ion from one monomer and a chloride ion from another monomer. The chemical equation of this reaction is given below:

C₀NCIHIDI₀C → (C₀NCI)n + HCl

The formula for the small molecule produced is (HCl).

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Answer:

1)

Stream of photons

2)Energy in atoms

3)Speed of 300,000 kilometers per second

4)Travel through vacuum of space

Explanation:

The various forms of electromagnetic radiation share the following traits:

flow of photons

The power of atoms

300,000 kilometres per second in speed

traverse the void of space

Hence, the appropriate responses are:

Stream of photons

Energy in atoms

Speed of 300,000 kilometers per second

Travel through vacuum of space

The ta swirls the erlenmeyer flask containing benzoic acid and ethanol to facilitate the mixing of the two substances. Swirling the flask helps to increase the surface area of contact between the benzoic acid and ethanol, allowing for a more efficient and thorough mixing process.

When the ta swirls the flask, it creates a vortex within the liquid, causing the substances to come into closer contact with each other. This helps to speed up the dissolution of the benzoic acid in the ethanol. Swirling also helps to distribute heat evenly throughout the mixture, which can aid in the dissolution process if the reaction is exothermic.

Additionally, swirling the flask can prevent the formation of local concentration gradients within the liquid. This is particularly important when dealing with substances that may have different densities or solubilities. Swirling the flask ensures that the mixture remains homogeneous and prevents the formation of any localized areas of high or low concentration.

Overall, swirling the erlenmeyer flask containing benzoic acid and ethanol helps to promote efficient mixing, dissolution, and homogeneity of the two substances. It allows for a more effective reaction and ensures that the desired outcome is achieved.

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Answer:

3rd option

Explanation:

In order to go from a solid to a liquid, heat must be added to the matter. This process is called melting.

Melting is the process of changing from a solid state to a liquid state. This process occurs when the temperature of the material increases and it can no longer remain in its solid form. During this process, the molecular structure of the material is disrupted, allowing the molecules to move around and form a liquid. Melting can occur with a wide range of materials, including metals, plastics, and even some organic compounds. The temperature at which a particular material melts depends on its composition and structure, as well as the surrounding environment. In many cases, melting can be a beneficial process, allowing materials to be reshaped or combined into new forms.

Melting occurs when the kinetic energy of the particles in the solid increase to the point where they can move past each other, forming a liquid. To transition from a liquid to a gas, more energy must be added. This process is called boiling. Boiling occurs when the kinetic energy of the liquid particles increase to the point where they can escape the surface of the liquid, forming a gas.

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The molar mass of the unknown gas is 43.87 g/mol.

To determine the molar mass of the unknown gas, consider Graham's law of effusion, wherein we can equate the ratio between the times of effusion of the two gases, to the ratio of the roots of the molar masses of the unknown gas and He gas, such that:

t_He / t_unknown gas = √MW_He / √MW_unknown gas

If He gas is observed to effuse through a porous barrier in 8.76 minutes and under the same conditions, the same number of moles of an unknown gas requires 29.0 minutes to effuse through the same barrier, then the molar mass of the unknown gas can be solved as follows.

8.76 minutes / 29.0 minutes = (√4.002602 g/mol) / √MW_unknown gas

√MW_unknown gas = (√4.002602)(29.0 minutes) / (8.76 minutes)

MW_unknown gas = 43.87 g/mol

Hence, the molar mass of the unknown gas is 43.87 g/mol.

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The number of mole present in the aluminum foil, given that the foil has a thickness of 1.0 mm is 0.7 mole

We'll begin by obtaining the mass of the aluminum foil. Details below:

Density = mass / volume

Cross multiply

Mass = Density × Volume

Mass of aluminum = 2.702 × 7

Mass of aluminum = 18.914 g

Finally, we shall determine the number of mole present. Details below:

Mole = mass / molar mass

Number of mole of aluminum = 18.914 / 27

Number of mole of aluminum = 0.7 mole

Thus, the number of mole is 0.7 mole

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Answer:

78.56 kg

Explanation:

45.1 + 33.46 = 78.56

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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The protons contribute significantly more to an atom's mass because sodium has an atomic number of 11, where the number of protons in a neutral sodium atom is equal to the number of electrons. In the first group or column of the periodic table, sodium is an alkali metal.

The sodium atom mass has 11 protons and electrons, and its outermost shell has one valence electron. Pure sodium has a high level of reactivity. Since it is such a soft metal, a knife may be used to cut it with ease. The chemical element sodium has the atomic number 11 and the symbol Na.

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Electrons are passed through a series of redox reactions, and each transfer causes protons to be pumped across the membrane. This creates a concentration gradient, which is used to power ATP synthesis through the process of chemiosmosis.

During chemiosmosis in aerobic respiration, protons are pumped across the inner mitochondrial membrane from the matrix to the intermembrane space.

Aerobic respiration is a process of producing energy that involves the complete breakdown of glucose in the presence of oxygen. It is a crucial metabolic pathway that is present in all higher organisms, including humans.Chemiosmosis is the process in which a transmembrane electrochemical gradient drives ATP synthesis. It is an important part of cellular respiration and oxidative phosphorylation.

During the process of oxidative phosphorylation, protons are pumped across the inner mitochondrial membrane, which creates a proton gradient that powers the synthesis of ATP. In aerobic respiration, the electron transport chain (ETC) is the primary mechanism that generates the proton gradient.

Electrons are passed through a series of redox reactions, and each transfer causes protons to be pumped across the membrane. This creates a concentration gradient, which is used to power ATP synthesis through the process of chemiosmosis.

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Answer:

-65.8C

Explanation:

Answer: the mole

Explanation:

The mole is the unit of amount in Chemistry.

It provides a bridge between the atom and the macroscopic amounts of material that we work with in the laboratory.

Answer:

350.7 g of NaCl

Explanation:

For this reactions our reactants are:

HCl and Na₂CO₃.

Then, the reaction is:

2HCl + Na₂CO₃ →  2NaCl  +  H₂CO₃

2 moles of hydrochloric acid react to 1 mol of sodium carbonate in order to produce 2 moles of salt and 1 mol of carbonic acid.

Ratio is 1:2. 1 mol of sodium carbonate can produce 2 moles of NaCl

Then, 3 moles of carbonate may produce (3 . 2) /1 = 6

We convert the moles to mass to determine the theoretical yield

6 mol . 58.45g /mol = 350.7 g

The theoretical yield of NaCl produced is 350.7 g.

NaCl is a salt, and it is an ionic compound.

The reaction is

\(\rm 2HCl + Na_2CO_3 \rightarrow 2NaCl + H_2CO_3\)

2 mol of HCl reacts with 1 mol of \(Na_2CO_3\) and produces 2 mol of NaCl and 1 mol of \(H_2CO_3\).

The ratio will be \(Na_2CO_3\) : NaCl

                                1 : 2

Then, for 3 mol of \(Na_2CO_3\)

\(\dfrac{3 \times 2}{1} = 6\)

Now, convert the moles to mass

\(6\; mol \times 58.45g /mol = 350.7 g\)

Thus, the theoretical yield produced is 350.7 g.

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If a chemical plant near the source of the river is dumping mercury, then the mercury levels should be highest at the source and lowest at the mouth.

Further testing should show that this is a commonly followed rule. Observations should be explained in a published scientific paper. Scientists look for answers to questions and solutions to problems using a process called the scientific method. This process consists of observation, hypothesis development, and experimental design. Bringing additional observations hypotheses, and experiments in repeated cycles

Chemists use the scientific method to conduct experiments formulate hypotheses formulate laws, and develop theories to better understand how the natural world behaves. In scientific thinking, hypotheses are formed before applicable research is conducted. The theory, on the other hand, is supported by evidence. This is a principle formulated as an attempt to explain what the data already support.

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answer : increasing pressure

the amount of gas that can be dissolved in liquid water increase with the increase in pressure

Answer:

increasing pressure

Explanation:

Answer:

the anwer is glycolysis

Given information Strontium hydroxide dissociates completely in water as follows: Sr(OH)₂ (s) → Sr²⁺ (aq) + 2OH⁻ (aq).

The dissociation constant for this reaction is given by the expression: Kb = [Sr²⁺][OH⁻]²/[Sr(OH)₂] Moles of Strontium Hydroxide (Sr(OH)₂) = 1 mol Concentration of Strontium Hydroxide (Sr(OH)₂) = 1 M Number of moles of OH⁻ ions produced by 1 mole of Sr(OH)₂ = 2 moles Concentration of OH⁻ ions = 2 M. The equilibrium constant (Kb) is given by: Kb = [Sr²⁺][OH⁻]²/[Sr(OH)₂] Kb = (2)²/1 = 4 pOH = 14 - pH pOH = 14 - 14 = 0pOH of the solution is 0.

The concentration of [OH⁻] can be calculated as follows: pOH = - log[OH⁻][OH⁻] = 10^(-pOH) = 10⁰ = 1 M. The concentration of OH⁻ ions is 1 M or 1 mol/L or 1 N. Note: pOH + pH = 14. If one of the values is known, the other can be calculated as shown in the above calculations.

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The reaction is a substitution reaction since bromide ion was replaced by hydroxide ion.

A chemical reaction is a change which results in a the permanent rearrangements of the atoms and constituents of a substance such that new substances are formed.

The given reaction is a as follows:

\(CH_3Br (aq) + OH^{-} (aq) \rightarrow CH_3OH (aq) + Br^{-} (aq) \\ \)

Bromide ion was replaced by hydroxide ion.

Therefore, the reaction is a substitution reaction.

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Answer: D-substitution

Other person is right its

Explanation:

Answer:

c)

Explanation:

add water to the acid to decrease its molarity

Answer:

the answer is 8 electrons

Answer: It will try to have 8

Explanation:

Answer:

\(\boxed {\boxed {\sf V_2=75 \ mL}}\)

Explanation:

Since the pressure is constant, the only variables we need to work with are temperature and volume. We will use Charles's Law, which states the volume of a gas is directly proportional to the temperature. The formula is:

\(\frac{V_1}{T_1}=\frac{V_2}{T_2}\)

Originally, the gas was 50 milliliters at 20 degrees celsius. Substitute these values into the left side of the equation.

\(\frac{50 \ mL}{20 \textdegree C}=\frac{ V_2}{T_2}\)

We don't know the volume of the new gas, but we know the temperature was changed to 30 degrees celsius.

\(\frac{50 \ mL}{20 \textdegree C}=\frac{ V_2}{30 \textdegree C}\)

Since we are solving for the new volume, we must isolate the variable. It is being divided by 30 °Cand the inverse of division is muliplication. Multiply both sides by 30 °C.

\(30 \textdegree C*\frac{50 \ mL}{20 \textdegree C}=\frac{ V_2}{30 \textdegree C}* 30 \textdegree C\)

\(30 \textdegree C*\frac{50 \ mL}{20 \textdegree C}= V_2\)

The units of degrees celsius cancel, so we are left with milliliters as the units.

\(30*\frac{50 \ mL}{20}= V_2\)

\(\frac{1500 \ mL}{20}= V_2\)

\(75 \ mL=V_2\)

The new volume of the gas is 75 milliliters.

You can fill in the table for other elements and their respective isotopes by determining the appropriate number of protons, neutrons, and electrons based on the given isotope mass number and atomic number.

To accurately fill in the table with the correct number of subatomic particles for the elements given the isotope mass number, we need to consider the composition of atoms and their respective subatomic particles. Atoms are composed of protons, neutrons, and electrons.

The number of protons in an atom is equivalent to its atomic number, which uniquely identifies the element. The number of neutrons can be determined by subtracting the atomic number from the isotope mass number. Electrons in a neutral atom are equal to the number of protons.

Let's take an example using the isotope mass number:

Isotope: Carbon-14 (mass number = 14)

Element: Carbon (atomic number = 6)Based on the atomic number and isotope mass number, we can determine the number of subatomic particles as follows:

Protons: 6 (same as the atomic number)

Neutrons: 14 - 6 = 8

Electrons: 6 (same as the number of protons in a neutral atom)

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We have that  the expression nRT/P represent

. Volume

V=nRT/P

Option A

From the question we are told

Which measure of gas does the expression nRT/P represent?

A. volume

B. number of moles

C. molar mass

D. gas constant

Generally the equation for the  ideal gas  is mathematically given as

PV=nRT

Where

P=pressure

V=volume

R=gas constant

n=Number of Moles

T=Temperature

Therefore

V=nRT/P

Option A

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Answer:

Volume

Explanation:

I took the test

Answer:

Ancient CO₂ levels can be measured from

1) Air bubbles trapped in deep ancient ice cores (up to 800,000 years ago) or

2) Tree rings (up to 10,000 years ago)

Explanation:

The percentages of CO₂ concentration in the atmosphere from previous or ancient times are found by analyzing the CO₂ content in trapped air located in the deep ancient ice cores present in Antarctica and Greenland such as the EPICA Dome C cores

As the ice is drilled though, the air released from trapped bubbles are captured for analysis and the time frame for the captured bubbles can date back up to 800,000 years

Ancient CO₂ levels can also be measured from tree rings which provide ancient CO₂ levels up to 10,000 years

Answer:

here are several resons that fossil foraminifera are especially valuable for determining the relative ages of marine rock layers. They have been around since the Cambrian, over 500 million years ago. They show fairly continuous evolutionary development, so different species are found at different times.

The metal you can insert in aqueous solution of cobalt(ii) nitrate and displace cobalt is zinc.

Electrochemical series is as know as reactivity series. The electrochemical series list metals in order of decreasing reactivity.

Generally, metals higher up in the series than cobalt metal will displace cobalt(ii) ions from it solution and produce cobalt metal. Therefore, Metals like Zinc will displace cobalt(ii) form it compound.

The reaction with a solution of cobalt (II) nitrate can be represented as follows:

Co(NO₃)₂ + Zn → Zn(NO₃)₂ + Co

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Answer:

C

Explanation:

The phosphate group PO4 is bonded covalently (bond between two non metals). While the sodium being bonded to the phosphorus atom is an ionic bond (bond between a metal and a non metal)

The chemical bonding in sodium phosphate, Na3PO4 is classified as both covalent and ionic. Therefore, option C is correct.

An enduring attraction between atoms or ions known as a chemical bond is what allows molecules and crystals to form. The bond may be created by the sharing of electrons in covalent bonds or by the electrostatic attraction of two oppositely charged ions, as in ionic bonds.

Chemical bonds are formed when the atoms in a compound's molecule are brought together and kept together by a powerful combining force. Ionic and covalent bonds are the two different types of chemical bonds.

Molecules are held together by chemical bonds, which also make transient connections necessary for life. chemical bonds, including as ionic, covalent, and hydrogen bonds, as well as London dispersion forces.

Thus, option C is correct.

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