Rank the following compounds in order of increasing boiling point (lowest to highest). 2-methyl propane, acetone, 2-propanol.
a) 2-methyl propane

Answer:

a buffalo

Explanation: if its north America it needs to be native from here none of the other are from north America

The byproduct of glycolysis in the presence of oxygen is pyruvate. Lactate is the main substance that causes acidic accumulation in muscle when oxygen is not present.

Oxamate is favored as the final electron acceptor to regenerate NAD, and NADH is the electron carrier. Glycolysis is the process through which all bodily cells generate energy. Pyruvate is the end product of glycolysis under aerobic conditions, and lactate under anaerobic conditions. Pyruvate proceeds through fermentation in the cell's cytoplasm if oxygen is not present. Fermentation comes in two flavors: Alcoholic fermentation causes the conversion of pyruvate to ethanol and CO2. This is an irreversible reaction that takes place in the cells of plants and fungi (like yeast cells).

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Answer:

Explanation:

Abundance means: a very large quantity of something. but in chemistry the ratio of the total mass of an element in the earth's crust to the total mass of the earth's crust; expressed as a percentage or in parts per million.

I don't think the abutencies have an effect because I can't find anything.

Hope this helps :D

The Tyndall effect can be used to detect whether an unknown sample is a suspension, colloid, or homogeneous solution.

Light can always travel through a solution, and there is never any general light scattering. Between solutions and suspensions, a colloid exists. By diffusing the incoming light, it produces the Tyndall effect. A suspension is hazy and contains visible suspended particles. The suspensions obstruct the passage of light.

A combination that is heterogeneous and has some of its particles settle out as it stands is called a suspension. Therefore, if a beam of light is passed through your sample and it scatters, it is either a suspension or a colloid. It is a solution if it doesn't scatter.

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ANSWER

The mass of water is 0.0536 kg

STEP-BY-STEP EXPLANATION;

Given information

The mass of KNO3 = 175g

The molarity of the solution = 32.25 M

The molality formula is given below as

The first step is to find the mole of the solute using the below formula

Recall, the molar mass of KNO3 is 101.1032 g/mol

The second step is to find the mass of water using the molality formula

Hence, the mass of water is 0.0536 kg

Answer:

54.21 mL.

Explanation:

We'll begin by calculating the number of mole in 0.242 g calcium carbonate, CaCO3.

This is illustrated below:

Mass of CaCO3 = 0.242 g

Molar mass of CaCO3 = 40 + 12 +(16x3) = 40+ 12 + 48 = 100 g/mol

Mole of CaCO3 =?

Mole = mass /Molar mass

Mole of CaCO3 = 0.242/100

Mole of CaCO3 = 2.42×10¯³ mole.

Next, we shall write the balanced equation for the reaction. This is given below:

CaCO3 —> CaO + CO2

From the balanced equation above,

1 mole of CaCO3 decomposed to produce 1 mole CaO and 1 mole of CO2.

Next, we shall determine the number of mole of CO2 produced from the reaction.

This can be obtained as follow:

From the balanced equation above,

1 mole of CaCO3 decomposed to produce 1 mole of CO2.

Therefore,

2.42×10¯³ mole of CaCO3 will also decompose to produce 2.42×10¯³ mole of CO2.

Therefore, 2.42×10¯³ mole of CO2 were obtained from the reaction.

Finally, we shall determine volume occupied by 2.42×10¯³ mole of CO2.

This can be obtained as follow:

1 mole of CO2 occupies 22400 mL at STP.

Therefore, 2.42×10¯³ mole of CO2 will occupy = 2.42×10¯³ x 22400 = 54.21 mL

Therefore, 54.21 mL of CO2 were obtained from the reaction.

The reaction in this experiment is the reverse of the hydration of cyclohexene to form cyclohexanol is OH  H⁺  + H₂O

The forward and backsword reactions are plausible in acidic conditions. To avoid this a special debilitation apparatus is used ic. Chicken al distillation apparatus. The precious, expeckenbeserve besi bugs point 86 degrees C is much lower than the cyclohexanol 165 degrees C. So if the distillation happens, the product evaporates no son as it comes in the reaction and is collected in a separate vessel.

So it would be in contact with acid or reaction mixture for much time. The distillate will contain only the product whereas bestizoru lacy in the reduction veal in eye labels real would Oneida. The feedstock is contaminated with water, unreacted alcohol, phosphoric acid, and some byproducts. Washing with water removes most contaminants. Treatment with sodium carbonate solution removes traces of acid and a final water wash removes the remaining carbonates. Synthesis of alkenes dehydration of cyclohexanol.

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The transfer of heat that occurs when 1.31 mol H2 reacts with 0.624 mol O2 is an exothermic reaction, where the reactants release energy as heat. This heat is absorbed by the product and can be used to do work.

When 1.31 mol of H2 reacts with 0.624 mol of O2, heat transfer occurs through an exothermic reaction. Heat is released by the reactants as they react and form a new product.

This release of heat is called the enthalpy of reaction (ΔH).

When the reactants form a product, energy is released from the reactants as heat. This heat is absorbed by the product. This heat transfer can be seen in an energy diagram for the reaction.

The energy released in the reaction can be used to do work. Heat transfer occurs in the form of kinetic energy, which is the energy of motion. This kinetic energy can be used to do work, such as powering machinery.

Heat transfer is important in many chemical and physical processes, such as cooking and cooling.

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Answer:

The atomic combinations can be matched to the appropriate functional groups as follows:

- A. C-O-C: C. Ester

- B. O=C-O-H: B. Carboxylic acid

- C. O=C-O-C: C. Ester

- D. C-O-H: A. Alcohol

Explanation:

Answer:

832.5 calories

Explanation:

One ounce bag of Hot Cheetos contains 90 calories from fat and 150 total calories. Also a party size bag of hot Cheetos weigh 18.5 ounces.

Therefore the weight of half of a bag of party-size chips = Size of a party size bag of hot Cheetos / 2 = 18.5 ounces / 2 = 9.25 ounces.

Since one ounce bag of Hot Cheetos contains 90 calories from fat, the amount of fat contained in half a bag of party-size chips (9.25 ounces) is given as:

Calories of fat in half a bag of party-size = 90 calories per ounce × 9.25 ounces = 832.5 calories

Answer:

832.5 calories

Explanation:

Answer:

Explanation:

The conversion of sulphur to sulfuric acid, though it goes through several steps, is:

2 S + 3 O2 + 2 H2O → 2 H2SO4

OK, so the equation says for every 2 moles of S you will get two moles of sulfuric acid. With a little simple math, then, the ratio of S to H2SO4 is 2:2 which is the same as 1:1.

While not correct by convention, you can write the above equation as

S + 3/2 O2 + H2O → H2SO4

And then the relationship between S and H2SO4 is more clear.

An accurate step in the procedure to name a binary molecular compound using IUPAC nomenclature rules is to; End the name of the second element with the suffix-ided.

What is IUPAC ?

The International Union of Pure and Applied Chemistry is reffered as IUPAC. It is a global scientific organization that establishes guidelines for chemical nomenclature, terminology, measurements, and symbols. IUPAC also publishes international recommendations for chemical safety and environmental protection and provides guidance on the use and application of chemical research.

What does Binary means?

Binary is a base-two number counting, calculating, and representation system. This means that, unlike the decimal system (base 10), which counts in tens, binary counts in powers of two. Binary numbers are made up of only two digits, 0 and 1, and each digit is known as a "bit." Binary is used to represent data and perform calculations in computing and electronic systems.

Therefore the correct option is C. End the name of the second element with the suffix-ided.

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Electron changes their spin to match the spin of proton in the nucleus. Hence, option C is correct.

Wavelength is the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire.

21-centimetre radiation, electromagnetic radiation of radio wavelength emitted by cold, neutral, interstellar hydrogen atoms. The hydrogen atom is composed of a positively charged particle, the proton, and a negatively charged particle, the electron. These particles have some intrinsic angular momentum called spin.

Hence, option C is correct.

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The pH of a 0.30 M solution of a weak base is 10.66. We can use this information to calculate the pOH of the solution, which is the negative logarithm of the hydroxide ion concentration. The pOH can then be used to calculate the pKb, which is the negative logarithm of the base dissociation constant, Kb. By taking the antilog of the pKb value, we can determine the value of Kb for the weak base.

To calculate the pOH of the solution, we use the equation: pOH = 14 - pH. Therefore, pOH = 14 - 10.66 = 3.34. Using the relationship between pOH and Kb, we have pKb = 14 - pOH = 10.66. Taking the antilog of pKb, we have Kb = 2.5 x 10^-4.

Therefore, the Kb of the weak base in the 0.30 M solution is 2.5 x 10^-4. This value indicates the strength of the base as a proton acceptor in solution. A higher value of Kb indicates a stronger base, which means it is more likely to accept a proton from water and generate hydroxide ions. The calculation of Kb is an essential step in understanding the properties of weak bases and their behavior in solution.

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Answer:

B Meiosis produces gametes

Explanation:

Hope this helps

Answer:
B. 297.1
Explanation:
To fond molar mass you just add the atomic
masses together however many ttimes they appear. Eg. BaBr2 would be 137.33 + 2(79.9)

The portion of the electrochemical or voltaic cell that maintains charge balance as electrons travel from one electrode to the other electrode is known as the salt bridge.

A voltaic cell, also termed as a galvanic cell, is an electrochemical cell which uses a chemical reaction to generate a electrical energy. It consists of the two half-cells, each containing an electrode and electrolyte solution. The two half-cells are connected by a wire and a salt bridge, which allows the flow of ions between the half-cells without mixing the electrolyte solutions.

The salt bridge is typically a U-shaped tube filled with a salt solution (usually KCl) that connects the two half-cells of the electrochemical cell. The salt bridge allows the flow of ions to maintain charge balance and prevent the buildup of excess charge within the half-cells, which would impede the flow of electrons and eventually stop the reaction.

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The concentration units that are temperature dependent are molality (B) and molarity (D). Mole fraction (A), mass percent (C), and other concentration units are not temperature dependent.

Which concentration units are temperature dependent?

Molality and molarity are concentration units that are temperature dependent because they are defined based on the amount of solute dissolved in a fixed amount of solvent, which can change with temperature.

Molality is defined as the number of moles of solute per kilogram of solvent, so it is based on the mass of the solvent, which can vary with temperature due to thermal expansion or contraction.

Molarity is defined as the number of moles of solute per liter of solution, so it is based on the volume of the solution, which can also vary with temperature due to thermal expansion or contraction. In contrast, mole fraction and mass percent are independent of temperature since they are based on the relative amounts of solute and solvent, which do not change with temperature.

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The concentration of the unknown weak acid solution is 0.228 M.

Acid dissociation constant, K a K text a Ka, and weak acids. Acids that don't entirely dissociate in solution are referred to as weak acids. In other words, any acid that is not a strong acid qualifies as a weak acid. The amount of dissociation determines how strong an acid is; the more dissociation, the stronger the acid.

Equivalent point:

Since the volume is 4.00 mL of the weak acid, and it takes  18.3 mL of 0.0500 M NaOH to reach the equivalence point.

We know that

In the equivalence point, [H⁺] = [OH⁻].

here the given formula C₁V₁=C₂V₂ is used

Here

C₁ = 0.0500 M

V₁ = 18.3 mL

C₂ = ?

V₂ = 4.00 mL

So, the C₂ is

0.0500 M * 18.3mL = C₂ * 4.00 mL

C₂ = 0.228M

The concentration of the unknown weak acid solution is 0.228 M

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Explanation:

2Al (s) aluminium + 6 HCl (l)

hydrochloric acid..

alcl3 (s) aluminium chloride + 3h² (g) hydrogen.

Growth in the world's population and economy, coupled with rapid urbanisation, will result in a substantial increase in energy demand over the coming years. The United Nations (UN) estimates that the world's population will grow from 7.6 billion in 2017 to 9.7 billion by 2050. The process of urbanisation – which currently adds a city the size of Shanghai to the world's urban population every four months or so – will result in approximately two-thirds of the world's people living in urban areas by 2050 (up from 55% in 2018). The challenge of meeting rapidly growing energy demand, whilst reducing harmful emissions of greenhouse gases, is considerable. In 2019 global energy-related carbon dioxide emissions rose to 33.3 Gt, the highest on record, and about 45% above the total in 2000 (23.2 Gt).Electricity demand growth has outpaced growth in final energy demand for many years. Increased electrification of end-uses – such as transport, space cooling, large appliances, ICT, and others – are key contributors to rising electricity demand. The number of people without access to electricity has fallen substantially, and is now below one billion. However, despite significant progress, over 11% of the world's population still lacks access, mostly in rural areas.Aside from the challenges of meeting increasing demand and reducing greenhouse gas emissions, cleaner air is a vital need. According to the World Health Organization (WHO), air pollution is the world's largest environmental risk. WHO estimates that about seven million people die prematurely as a result of air pollution. Much of the fine particulate matter in polluted areas arises from industrial sources such as power generation or from indoor air pollution which could be averted by electricity use.Studies have repeatedly shown that nuclear energy is a low-emitting source of electricity production in general. It is also specifically low-carbon; emitting among the lowest amount of carbon dioxide equivalent per unit of energy produced when considering total life-cycle emissions. It is the second largest source of low-carbon electricity production globally (after hydropower), and provided about 30% of all low-carbon electricity generated in 2018. Almost all reports on future energy supply from major organisations suggest an expanded role for nuclear power is required, alongside growth in other forms of low-carbon power generation, to create a sustainable future energy system.In June 2019 the OECD’s International Energy Agency (IEA) published a report, Nuclear Power in a Clean Energy System, which concluded that a failure to invest in existing and new nuclear plants in advanced economies would make global efforts to transition to a cleaner energy system drastically harder and more costly.

Answer:

Explanation:

Global population and economic growth, coupled with rapid urbanization, will lead to a significant increase in energy demand in the coming years. The United Nations (UN) predicts that the world population will grow from 7.6 billion in 2017 to 9.7 billion in 2050. By 2050, about two-thirds of the world's population will live in urban areas, due to an urbanization process that currently adds a city the size of Shanghai to the world's urban population about every four months. (up from 55% in 2018). The challenge of meeting rapidly growing energy demands while reducing harmful emissions of greenhouse gases is significant. In 2019, global energy-related carbon dioxide emissions increased to 33.3 Gt, a record high and nearly 45% higher than in 2000 (23.2 Gt). Electricity demand has grown faster than final energy demand over the years. Increasing electrification of end-users such as transportation, cooling, large appliances and ICT contributes significantly to the increase in electricity demand. The number of people without electricity has dropped significantly and now he is below 1 billion. However, despite significant progress, more than 11% of the world's population is still inaccessible, most of them living in rural areas. Aside from the challenges of meeting growing demand and reducing greenhouse gas emissions, clean air is essential. According to the World Health Organization (WHO), air pollution is the world's biggest environmental risk. WHO estimates that about 7 million people die prematurely as a result of air pollution. Much of the particulate matter in polluted areas comes from industrial sources such as power generation and indoor air pollution, which can be avoided by using electricity. Research has repeatedly shown that nuclear power is generally a low-emission power source. It is also particularly low carbon. It has one of the lowest CO2 equivalents per unit of energy produced when considering full life cycle emissions. It is the second largest source of low-carbon electricity generation in the world (after hydropower), providing about 30% of all low-carbon electricity generation in 2018. Nearly all reports on future energy supply by major organizations point to the growing role of nuclear power, along with the growth of other forms of low-carbon electricity generation necessary to build a sustainable future energy system. there is Global efforts to transition to cleaner energy systems will be significantly more complex and costly.

The volume of 0.125 M nitric acid that is required to completely neutralize 25.0 mL of 0.100 M barium hydroxide is 31.25 mL.

This can be calculated using the formula:

Molarity of acid x Volume of acid = Molarity of base x Volume of base

Given:

Molarity of nitric acid = 0.125 M

Volume of nitric acid = ?

Molarity of barium hydroxide = 0.100 M

Volume of barium hydroxide = 25.0 mL = 0.025 L

Using the formula:

0.125 V = 0.100 × 0.025

V = (0.100 × 0.025) / 0.125

V = 0.020 L or 20 mL

Therefore, the volume of 0.125 M nitric acid that is required to completely neutralize 25.0 mL of 0.100 M barium hydroxide is 31.25 mL.

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Answer:

The Combined Gas Law shows that the pressure of a gas is inversely proportional to volume and directly proportional to temperature. Avogadro's Law shows that volume or pressure is directly proportional to the number of moles of gas. Putting these together leaves us with the following equation:

P1×V1T1×n1=P2×V2T2×n2(11.9.1)

As with the other gas laws, we can also say that  (P×V)(T×n)  is equal to a constant. The constant can be evaluated provided that the gas being described is considered to be ideal.

The Ideal Gas Law is a single equation which relates the pressure, volume, temperature, and number of moles of an ideal gas. If we substitute in the variable  R  for the constant, the equation becomes:

P×VT×n=R(11.9.2)

The Ideal Gas Law is conveniently rearranged to look this way, with the multiplication signs omitted:

PV=nRT(11.9.3)

The variable  R  in the equation is called the ideal gas constant.

Explanation:

Answer:

The answer is Depositing one metal on another

Explanation:

Depositing one metal on another best describes electroplating. Hence, option B is correct.

"Electroplating is a process that uses an electric current to reduce dissolved metal cations so that they form a thin coherent metal coating on an electrode."

An electroplating process is the electroplating of copper in which the metal to be plated (copper) is used as the anode, and the electrolyte solution contains the ion of the metal to be plated (Cu2+). Copper in the solution at the anode and is plated at the cathode.

Electroplating is primarily used to change the physical properties of the materials. This process can be used to give materials increased wear resistance, corrosion protection or aesthetic appeal, as well as increased thickness.

Hence, depositing one metal on another best describes electroplating.

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Answer:

uwu

Explanation:

because uwu= i dont knoow

The freezing point of a solution made by dissolving 50.0 g of methyl salicylate in 800 g of benzene is 3.16°C.

The freezing point of a solution can be calculated using the equation: ΔT = Kf·m, where Kf is the freezing point constant, m is the molal concentration of the solution and ΔT is the freezing point depression of the solution.

The molal concentration of a solution can be calculated using the equation: m = moles of solute / kg of solvent. To calculate the moles of solute, we can use the molecular weight of methyl salicylate (138.2 g/mol) and convert the mass of the solute from grams to moles.

m = (50.0 g C7H6O2)/(138.2 g/mol) = 0.361 moles C7H6O2

The molal concentration can now be calculated: m = 0.361 moles C7H6O2 / 0.800 kg benzene = 0.45 molal C7H6O2

Using the molal concentration, we can calculate the freezing point depression: ΔT = Kf·m = (5.12 °C/molal) · (0.45 molal C7H6O2) = 2.31 °C.

The freezing point of the solution can then be calculated: freezing point = (freezing point of pure solvent) – ΔT = (5.47 °C) – (2.31 °C) = 3.16 °C.

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