A large piece of iron was reacted with an acid. What would happen to the rate of the reaction had the large piece been finely divided into smaller pieces? Please explain the correct answer

It will increase because the reactant particles are brought closer together.
It will decrease because the reactant particles are moved farther apart.
It will decrease because larger particles provide more surface area to react.
It will increase because smaller particles provide more surface area to react.

Answer:

35.8.540 its korrect now

The statement that is not true about proteins is "Proteins are naturally acidic." Option C is correct.

Proteins are biological macromolecules made up of long chains of amino acids. They are also referred to as polypeptides because they are composed of multiple peptide bonds between the amino acids. The specific sequence and arrangement of amino acids in the polypeptide chain determine the unique 3D structure and function of the protein.

Proteins can have a structure characterized by loops, bends, and twists, and this structure is held together by a variety of intermolecular interactions, including hydrogen bonds, disulfide bonds, electrostatic interactions, and van der Waals forces.

While some amino acids have acidic or basic side chains, proteins as a whole are not necessarily naturally acidic. The overall charge of a protein is dependent on the charge of its constituent amino acids and the pH of the surrounding environment.

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--The given question is incomplete, the complete question is

"All of the following statements are true about proteins except. -Proteins can have a structure characterized by loops, bend, and twists. A) Proteins are composed of amino acids. B) Proteins are polypeptides C) Proteins are naturally acidic. D) Hydrogen bonds keep the protein together"--

13.74 gm of a 0.500 m solution of sodium acetate, in water would you use to obtain 0.170 mol of sodium acetate.

To calculate the mass of sodium acetate in a 0.500 m solution, use the following equation:-

= Mass (g)

= Molarity (m) x Volume (L) x Molecular Weight (g/mol).

For sodium acetate, the molecular weight is 82.03 g/mol. Therefore, the mass of sodium acetate in a 0.500 m solution is:

= Mass (g)

= 0.500 m x 0.500 L x 82.03 g/mol

= 20.51 g

To obtain 0.170 mol of sodium acetate, use the following equation:-

= Moles (mol)

= Mass (g) / Molecular Weight (g/mol).

Therefore, the mass of sodium acetate required to obtain 0.170 mol is:

= Mass (g)

= 0.170 mol x 82.03 g/mol

= 13.74 g

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According to OSHA (Occupational Safety and Health Administration), safety measures for using dental materials with potentially hazardous chemicals can be found in sources such as Material Safety Data Sheets (MSDS), OSHA's Hazard Communication Standard (HCS), and dental office safety manuals or protocols.

According to OSHA (Occupational Safety and Health Administration), safety measures that should be taken when using dental materials with potentially hazardous chemicals can be found in a few different sources:

Material Safety Data Sheets (MSDS): Manufacturers of dental materials are required to provide MSDSs for their products. These sheets contain detailed information about the potential hazards, safe handling procedures, storage recommendations, and emergency measures related to the chemicals present in the dental materials.

OSHA's Hazard Communication Standard (HCS): This standard requires employers to provide information and training to employees about the hazardous chemicals they may be exposed to in the workplace. The HCS ensures that employees have access to information on the hazards, proper handling, and use of hazardous chemicals, including dental materials.

Dental Office Safety Manuals or Protocols: Dental offices often develop their own safety manuals or protocols that outline specific safety measures for handling dental materials. These may include guidelines on proper storage, handling, personal protective equipment (PPE) requirements, spill cleanup procedures, and waste disposal methods.

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The average kinetic energy depends on the mass and speed of the particles. At constant temperature, every gas molecules have the same average kinetic energy.

Kinetic energy is a form of energy generated by virtue of motion of an object. When the object is at rest the energy is stored in the form of potential energy whereas, when they start to move they gain a kinetic energy.

Average kinetic energy of a particle, depends on temperature by the equation :

K =  3/2 KT

Therefore it is independent of mass and speed of the particles. However the speed of ions at constant temperature will be different.

Hence, at constant temperature, the average kinetic energy of all the gases will be the same. Thus, option E is correct.

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Your question is incomplete. But your complete question probably was:

At a constant temperature, which of the gases will have the highest average

kinetic energy?

A) H2

B) N2

C) O2

D) F2

E) All the gases will have the same average

kinetic energy.

Answer:

A mineral is an inorganic solid substance formed naturally in the ground having a definite physical and chemical properties.

The internal atomic structure or arrangmenet of atoms of a mineral determines the chemical and physical properties of the mineral.

For example: diamonds and graphite, atmoic structure of diamond is  rigid tetrahedral network providing chemical and physical properties of diamond.

pH of the solution after 24. 00 ml of the hcl has been added is 12.87

millimoles NaOH = mL x M = 24.00 mL x 0.25 M = 6.00

millimoles HCl = 24.00 mL x 0.10 M = 2.40

total volume = 48.00 mL

.................................NaOH + HCl ==>NaCl + H2O

initial.........................6.00.........0............0.........0

added.....................................2.40............................

change.................... -2.40......-2.40.........+2.40.... +2.40

equilibrium.................3.60.........0..............2.40.......2.40

The NaCl contributes nothing to the pH of the final solution. The pH is determined by the excess of NaOH present. (NaOH) = millimoles/mL = 3.60/48.00 = 0.075 M = (OH^-)

pOH = -log (OH^-). Then

pOH = -log (0.075)

pOH =1.1249

As we know,

pH + pOH = pKw = 14.00

pH=14-pOH

pH=14-1.1249

pH=12.87

pH is a logarithmic measure of an aqueous solution's hydrogen ion concentration. pH = -log[H+], where log is the base 10 logarithm and [H+] is the concentration of hydrogen ions in moles per liter.

The pH of an aqueous solution describes how acidic or basic it is, with a pH less than 7 being acidic and a pH greater than 7 being basic. A pH of 7 is regarded as neutral (e.g., pure water). pH values typically range from 0 to 14, though very strong acids may have a negative pH and very strong bases may have a pH greater than 14.

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Answer:

93.33 ml

Explanation:

By Charles law we know that , volume is directly proportional to the temperature at constant pressure. So ,

→ V1/T1 = V2/T2

→ 80ml / (27+273)K = V2/(77+273)K

→ 80ml / 300K = V2/350K

→ V2 = 80ml *350/300

→ V2 = 93.33 ml

I hope this helps.

The amount of energy from the sun and precipitation level are critical factors in determining the type of vegetation in each terrestrial biome. These biomes include grassland, desert, tundra and forest.

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Based on the equation of the reaction and the limiting reactant of the reaction, molarities of the ions are determined from the amount in moles of excess reactants and soluble products formed.

The limiting reactant is he reavtant that is used up in the reaction after which the reaction stops.

The limiting reactant is obtained from the mole ratio of the reactants in the equation of the reaction.

Equation of reaction is given as follows:

Molar mass of AgNO3 = 170 g/mol

Molar mass of Na3P = 100 g/mol

Molar mass of Ag3P = 355 g/mol

Molar mass of NaNO3 = 85 g/mol

Mass of AgNO3 reacting = 83.4 g

Moles of AgNO3 reacting = 83.4/170 = 0.49 moles

Mass of Na3P reacting = 62.9

Moles of Na3P reacting = 62.9/100 = 0.629 moles

Moles ratio of AgNO3 to Na3P = 3 : 1

Mole rational of AgNO3 and NaNO3 1 : 1

Based on the mole ratio;

At the end of the reaction, molarity of the ions are as follows:

Molarity of Na+ = {0.49 + (3 × 0.46)}/1.71

Molarity of P^{3+} = 0.465/1.71

Molarity of NO3^{-1} = 0.49/1.71

Therefore, molarities of the ions are determined from the amount in moles of excess reactants and soluble products formed.

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The label CORROSIVE on a chemical container indicates that the contents are corrosive, meaning that contact with these materials can cause damage to living tissue and materials.

It is important to exercise caution when handling these materials and to ensure that the containers are well labeled and stored in a safe and secure location.

Corrosive chemicals are substances that can cause damage or destruction to other substances with which they come into contact by means of a chemical reaction. These reactions can occur on contact, or over a period of time. Corrosive chemicals can cause damage to the skin, eyes, respiratory tract, and other parts of the body.

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Answer:

B. That energy can only be converted between different forms

Explanation:

The law of conservation of energy implies that energy can only be converted between different forms but can neither be created nor destroyed.

Energy is the ability to do work. It is very important physical quantity that is essential to all life forms.

Energy according to the law of conservation of energy is not produced neither is it destroyed.

Energy is simply transformed from one form to another.

Answer:

Uh first of all this is algebra but I'll answer this

First distribute the three and 5 (Multiply them by both terms inside parenthesis.

3x-6=5x+20

Then add like terms

8x=14

Divide 8 by 8 and 8 by 14

x = 14/8

Explanation:

Answer:

The answer is \(x = -13\) .

Explanation:

Solve the equation:

\(3(x -2) = 5(x + 4)\)

Use Distributive Property:

\(3(x -2) = 5(x + 4)\)

\(3x - 6 = 5x + 20\)

-Subtract \(5x\) from \(3x\) :

\(3x - 6 -5x = 5x -5x + 20\)

\(-2x - 6 = 20\)

-Add both sides by \(6\) :

\(-2x - 6 + 6 = 20+6\)

\(-2x = 26\)

-Divide both sides by \(2\) :

\(\frac{-2x}{-2} = \frac{26}{-2}\)

\(x = -13\)

So, now you have found the answer.

When, where, and how much a gene is expressed in a cell depends on the histones and epigenetic elements working together.

In eukaryotic cells, there are proteins called histones that serve two purposes. They support the maintenance of DNA in a compact state and control the loosening the tightening of DNA strands, which controls the expression of genes.

Epigenetic factors are substances that alter the gene to control how a gene expresses itself. Both of these modifications are not heritable and do not result in mutations. These are transient alterations such DNA remodeling, methylation, and alkylation, among others.

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Selaginella lepidophylla

Answer:

Hydrocarbons

Explanation:

They all are made up of only carbon and hydrogen atoms, so they're organic molecules known as hydrocarbons. Decane and Heptane are alkanes, Propene is an alkene.

\(\tt \dfrac{P_1V_1}{T_1}=\dfrac{P_2V_2}{T_2}\)

T₁=40+273=313

T₂=60+273=333

P₁.820/313 = 1.4.1250/333

P₁=2.006 atm

Answer:

I think its b be ause it looks like a better answer and it has some detail to it

Answer:

1. place some sulfuric acid in a beaker and warm it in a water bath.

2. add a spatula of copper(II) oxide powder to the acid and stir with a glass rod.

3. continue adding copper(II) oxide powder until it is in excess.

4. filter the mixture to remove the excess copper(II) oxide.

Explanation:

Answer:

electrons

Explanation:

because it rotates the nucleus around it

Answer:

Hydrogen Chloride

Explanation:

H is the chemical symbol for Hydrogen

Cl is the chemical symbol for Chlorine

N is the chemical symbol for Nitrogen but i'm not sure how that fits there..

:)

Ammonium chloride is the name for the ionic chemical with the formula NHCI. It is created when the ammonium cation (\(NH_4\)+) and chloride anion (Cl-) combine.

Ammonium chloride is a white crystalline substance that is frequently employed in a variety of processes, including as a flux in metalworking, a source of nitrogen in fertilizers, and an ingredient in dry cell batteries. Ammonium chloride contributes to its ionic behavior by dissociating into ammonium and chloride ions when it is dissolved in water. The term "Ammonium Chloride" indicates the compound's ionic nature and composition because it contains both the chloride anion and the ammonium cation.

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Answer:

the difference between perceive and observe  is that perceive is to see, to be aware of, to understand while observe is to notice or view, especially carefully or with attention to detail.

Explanation:

Specific heat capacity of a substance is the amount of heat required to raise the temperature by one degree Celsius of one gram of a substance. Therefore, -1.046KJ of heat are given off when 5.0 g of water cools from 75 °C to 25 °C.

Enthalpy term is basically used in thermodynamics to show the overall energy that a matter have. Mathematically, Enthalpy is directly proportional to specific heat capacity of a substances.

Mathematically,

Enthalpy=mass of water× specific heat capacity of water× Change in temperature

mass of water= 5.0 g

specific heat capacity of water=4.186J/g°C

Change in temperature=final temperature - initial temperature

= 25 °C- 75 °C

=-50°C

Substituting all the given values in the above equation, we get

Enthalpy=5.0× 4.186× -50°C

Enthalpy=-1,046.5J=-1.046KJ

Therefore, -1.046KJ of heat are given off when 5.0 g of water cools from 75 °C to 25 °C.

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B. He < CH4 < Ar < Cl2 of the following correctly lists the gases in order of increasing rate of effusion.

The rate of effusion of gases is governed by Graham's Law, which states that the rate of effusion of a gas is inversely proportional to the square root of its molar mass. In other words, lighter gases effuse faster than heavier gases. Based on the molar masses of the given gases:
- Helium (He) has a molar mass of approximately 4 g/mol.
- Methane (CH4) has a molar mass of approximately 16 g/mol.
- Argon (Ar) has a molar mass of approximately 40 g/mol.
- Chlorine (Cl2) has a molar mass of approximately 71 g/mol.
According to Graham's Law, the gas with the lowest molar mass will have the highest rate of effusion. In this case, the gases in order of increasing rate of effusion are Helium, Methane, Argon, and Chlorine, which corresponds to option B.

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The wavelength needed to remove an electron from the valence shell of an atom can be calculated using the equation λ = h / (E * c).

To calculate the wavelength needed to remove an electron from the valence shell of an atom, we can use the equation λ = h / (E * c), where λ represents the wavelength, h is Planck's constant (6.62607015 x 10^⁻ ³⁴  J·s), E is the energy required to remove the electron, and c is the speed of light (2.998 x 10^⁸  m/s).

The energy required to remove an electron is known as the ionization energy, which is specific to each atom. By substituting the appropriate values into the equation, we can determine the wavelength of the electromagnetic radiation necessary to remove the electron.

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The purpose of completing the atomic orbital is to visually represent the energy levels, electron occupancy, and bonding characteristics of the lithium molecule Li2.

The task requires completing the atomic orbital (AO) and molecular orbital (MO) energy diagram for Li2. In the energy diagram, the atomic orbitals of the individual lithium atoms (Li) and the resulting molecular orbitals formed by their combination will be depicted.

The AO energy diagram for Li2 will include the atomic orbitals of two Li atoms, such as the 1s orbital and the 2s orbital. These atomic orbitals will be represented at appropriate energy levels.

Next, the MO energy diagram will show the molecular orbitals formed through the combination of the atomic orbitals. The molecular orbitals will be labeled based on their symmetries and energy levels, such as σ1s, σ*1s, σ2s, and σ*2s. The filling of electrons in these molecular orbitals will follow the principles of Hund's rule and the Pauli exclusion principle.

The completed AO and MO energy diagram for Li2 will visually represent the energy levels, electron occupancy, and bonding characteristics of the lithium molecule.

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Option b is correct. In the process of chrome plating an antique automobile bumper, the bumper acts as the cathode in an electrolytic cell.

To find the number of moles of oxygen gas evolved per 107 grams of Cr(s) deposited, we need to calculate the amount of charge required to deposit 107 grams of Cr(s) and then determine the ratio of moles of oxygen gas evolved to the amount of charge.

The molar mass of Cr is 51.996 g/mol. To deposit 107 grams of Cr(s), we divide 107 g by the molar mass to get the number of moles of Cr(s):

107 g / 51.996 g/mol = 2.0646 mol

Since the atomic mass of Cr is 51.996, the number of moles of Cr(s) deposited is 2.0646 mol.

The charge required to deposit one mole of Cr(s) can be calculated using Faraday's constant:

1 mole of Cr(s) = 1 Faraday = 96,485 coulombs

Therefore, the charge required to deposit 2.0646 mol of Cr(s) is:

2.0646 mol * 96,485 coulombs/mol = 199,527 coulombs

For every 4 moles of electrons transferred in the oxidation of \(H_2O\), 1 mole of \(O_2\) gas is evolved. This means that for every mole of electrons, 1/4 mole of \(O_2\) gas is produced.

To determine the number of moles of oxygen gas evolved, we need to find the number of moles of electrons transferred. Since 1 Faraday is equal to 96,485 coulombs, the number of moles of electrons transferred is equal to the charge divided by Faraday's constant:

199,527 coulombs / 96,485 coulombs/mol = 2.07 mol

Therefore, the number of moles of oxygen gas evolved is 1/4 times the number of moles of electrons transferred:

(1/4) * 2.07 mol = 0.5175 mol

Rounded to three significant figures, the moles of oxygen gas evolved for every 107 grams of Cr(s) deposited is approximately 0.495. Therefore, the correct answer is (b) 0.495.

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