determine the molecular geometry around each carbon atom in maltose.

Answer:

In order to promote biodiversity, fight disease, and advance agriculture, soil is essential in the following ways:

Biodiversity: A variety of microbes, insects, and plants that make up intricate food webs live in soil. The diversity of the soil fosters the growth of plants, which in turn provide habitat and food for other organisms, and contributes to the stability of the ecosystem.

Fighting disease: Soil microorganisms compete with pathogenic organisms for resources and space and also produce antimicrobial chemicals, which helps to avoid plant diseases. Additionally, minimising tillage and increasing organic matter are two soil management techniques that can help lower the prevalence of plant diseases.

Agriculture: Soil supports crops physically, supplies them with vital nutrients, and controls the flow of air and water. Crop yields and quality can both rise with healthy soil and a balanced soil microbiota. Furthermore, sustainable agriculture can be supported by soil management techniques like cover crops and decreased tillage that preserve soil resources and maintain soil health.

The soil is home to a wide range of bacteria, insects, or plants that support complex food webs.

The bioactive, porous media that has grown in the top layer of the Earth's crust is known as soil. Being a source of water as well as nutrients, a filter for harmful wastes, a site for their breakdown, and a collaborator in the cycle of carbon as well as other substances through the planet's ecosystem, soil constitutes one of the main substrates of life on Earth.

In the following way soil contributes to biodiversity, fighting disease and agriculture. Biodiversity: The soil is home to a wide range of bacteria, insects, or plants that support complex food webs. Disease prevention: Soil microorganisms create antimicrobial compounds and compete against pathogenic organisms for nutrients and space, which helps prevent plant diseases. Agriculture: Soil provides crops with physical support, essential nutrients, and control over air and water flow.

Therefore, the soil is home to a wide range of bacteria, insects, or plants that support complex food webs.

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Polywool fibre is synthetic.

⇒b. Synthetic

Hope It Helps You ✌️

Answer:

\(\large{\underbrace{\underline{\fcolorbox{White}{pink}{\bf{b.synthetic }}}}}

\)

Answer: Work is 1.7 kJ,  Power is 280 W

Explanation: Work  W = mgh, power P= W/t

W = 85 kg·9.81m/s²·2 m = 1667.7 J

P = 1667.7 J / 6 s = 277.95 W

After the water vapor condenses, the pressure of carbon dioxide will be 1.5 atm.

To find the pressure of the carbon dioxide after the water vapor condenses, we can use the idea of partial pressures. The total pressure of the vessel is 2.00 atm, and the ratio of moles of CO2 to moles of water vapor is 3:1. Therefore, the partial pressure of the CO2 is 3/4 of the total pressure, and the partial pressure of the water vapor is 1/4 of the total pressure.

So,

P(CO2) = (3/4) * 2.00 atm = 3/4* 2 atm = 1.5 atm

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Answer:

The correct answer is - brand of floor wax.

Explanation:

The independent variable is the variable or the factor in an investigation which is manipulated or change in the experiment and affects the dependent variable and produces a various result.

In this investigation, there are different brands of the floor was are the independent variable as they are changed to see the effect on the scratches on the floor on 20 tiles for each brand.

Answer: it consists of two simple machines: a lever and a wheel and axle. Effort is applied to the lever by picking up the handles of the wheelbarrow.

Explanation:

Answer:

B

Explanation:

B)

1/4  temperature must give Mass of nitrogen at 0°c heated so that both it volume and pressure will be double.​

To double both the volume and pressure of a given mass of nitrogen at 0°C, we can utilize the combined gas law, which relates the initial and final states of a gas. The combined gas law is expressed as:

(P1 * V1) / T1 = (P2 * V2) / T2

Where P1 and P2 are the initial and final pressures, V1 and V2 are the initial and final volumes, and T1 and T2 are the initial and final temperatures.

Since we want to double both the volume and pressure, we can set P2 = 2P1 and V2 = 2V1. Plugging these values into the combined gas law equation, we get:

(2P1 * 2V1) / T1 = P1 * V1 / T2

Simplifying the equation, we find:

4P1V1 = P1V1 / T2

Cancelling out the common terms, we have:

4 = 1 / T2

Rearranging the equation, we find:

T2 = 1 / 4

Therefore, to double both the volume and pressure of the given mass of nitrogen at 0°C, it must be heated to a temperature of 1/4 or 0.25 times its initial temperature.

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Increase the temperature of the reactants and result in a faster rate of reaction for gaseous reactants.

Pressure. For a given volume, there are more reactant particles if the pressure of gaseous reactants is raised. Because there will be more collisions, the reaction rate will be higher. The rate of a reaction will increase with the pressure of the reactants.

Because there are more collisions between responding particles in gaseous processes, pressure enhances the pace of reaction.

With rising temperature, exothermic reactions occur more quickly.

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The sign of ΔS plays an important role in determining the spontaneity of a chemical reaction. If ΔS is positive, the reaction is more likely to occur spontaneously, while if ΔS is negative, the reaction may require external energy input to occur.

In thermodynamics, ΔS represents the change in entropy of a system during a chemical reaction. Entropy is a measure of the degree of disorder or randomness in a system. When a chemical reaction occurs, the entropy of the products and the reactants may change. The sign of ΔS determines whether a reaction is exothermic or endothermic.

Among the reactions listed, the one that has a positive value for ΔS is

\(N_2(g) + 3H_2(g) --> 2NH_3(g).\)

This reaction involves the synthesis of ammonia, which is an endothermic process. The reactants have lower entropy than the products, meaning that the system becomes more disordered during the reaction. The entropy of the products is greater than the entropy of the reactants, so the ΔS is positive.

In contrast, the reactions of

\(C_{10}H_8(g) --> C_{10}H_8(s), F_3BNH_3(g) --> BF_3(g) + NH_3(g),\\ and\  CS_2(g) + 4H_2(g) --> CH_4(g) + 2H_2S(g)\)

have negative values for ΔS. These reactions involve the formation of solids or liquids, and the system becomes more ordered during the reaction. The entropy of the products is lower than the entropy of the reactants, so the ΔS is negative.

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Answer:

Grass

Explanation:

On a hot summers day, while barefoot Concrete normaly has heat absorbed into it. (Or on top) So when you go to Walk on it, It normally burns the heel.

Hope I helped and Have a great day!

brainliest?

Answer:

grass

Explanation:

the concrete has a higher specific heat capacity and is basically hotter than the grass which has a lower one

Answer:

the main aim of balance in an equation is making show that the total number of substances on the reactant side is equal to the total number of substances on the product side

Explanation:

so if we were to balance the equation of water water is a compound containing two molecules of hydrogen and one molecule of oxygen therefore

H+O=H2O

\(H+O_2= H_2O\)

Element | Reactant | Product

H | 1 × 4 | 2×2

O | 2 | 1 × 2

\(4H+O_2= 2H_2O\)

Answer:

it's yellowish in color plz Mark me as brainliest

Answer:

It's a yellowish color like copper

The mass of oxygen gas in this sample of oxygen is calculated as to be equal to 2.976 gm.

Ideal gas law states that the product of pressure and the volume of one gram molecule of an ideal gas is equal to the product of absolute temperature of gas and the universal gas constant.

As, PV= nRT

1.31 atm= 995.6 mmHg

As , Gas constant, R = 62.36 mmHg Lk^-1 mol^-1

23 C = 23 +273=  296K

1.74( 995.6) = n (62.36) (296)

n = 0.093

Since, molar mass= number of grams  / number of moles

and we know, molar mass of oxygen is 32

So, 32 * 0.093

= 2.976 gm

Now, the mass is grams of oxygen gas in this sample = 2.976 gm

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Beryllium- nuclide, with the atomic number of 4 and the mass number of 9, undergoes beta decay, which involves the emission of a beta particle. The beta particle is an electron that is emitted from the nucleus of the atom when a neutron is transformed into a proton. As a result, the atomic number increases by 1, while the mass number remains unchanged.

The balanced nuclear chemical equation that describes the beta decay of beryllium- nuclide can be written as follows:
4/9 Be → 5/9 B + β-

In this equation, the reactant is beryllium- nuclide, which decays into a product of boron- nuclide and a beta particle. The atomic number of beryllium increases from 4 to 5, while the mass number remains unchanged at 9. The beta particle emitted has a charge of -1 and a mass of 0, which indicates that it is an electron.

In conclusion, the beta decay of beryllium-nuclide is a radioactive process that involves the emission of a beta particle. The balanced nuclear chemical equation represents the transformation of the reactant into a product, including the emission of the beta particle.

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The primary goal of the carburetor is to atomize and vaporize the fuel before mixing it with air in varying proportions, making it the device that is used for atomizing and vaporizing the fuel before mixing it with air in varying proportions.

The device that is used for atomizing and vaporizing the fuel before mixing it with air in varying proportions is Carburetor. A carburetor is a device that blends air and fuel for an internal combustion engine. It is often located on the top of an engine on a direct engine-to-carburetor link, and it controls how much air and fuel are mixed.The carburetor must also supply the engine with a spark plug to ignite the fuel/air mixture in each cylinder.

The carburetor must provide a fuel/air mixture that is consistent with the engine's changing demands, which vary with engine speed, load, and temperature. A carburetor is responsible for enriching the fuel/air mixture when the engine is cold and for leaning the mixture as the engine warms up. As well, it is also responsible for regulating the fuel/air mixture at part-throttle levels, where the engine spends most of its time when driving.

When an engine is running at full throttle, it is operating at wide-open throttle (WOT), and the carburetor provides the richest fuel/air mixture possible.The carburetor, like most engine systems, is a complex and sensitive device that must be correctly tuned to perform properly. The primary goal of the carburetor is to atomize and vaporize the fuel before mixing it with air in varying proportions, making it the device that is used for atomizing and vaporizing the fuel before mixing it with air in varying proportions.

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The pH of the solution after the addition of 15.0 ml of KOH is 1.28.

In the given problem, we have been provided with the volume of HBr (hydrogen bromide) solution and its concentration.

We have been also provided with the concentration and volume of KOH (potassium hydroxide) solution.

We need to calculate the pH of the solution after the addition of 15.0 ml of KOH.

Let’s begin the calculation process-

1. Write down the balanced chemical equation of HBr and KOH-

HBr + KOH → KBr + H2O

2. To Calculate the number of moles of HBr-

We know that, Number of moles = Concentration x VolumeNumber of moles of HBr = 0.15 x 50/1000= 0.0075 moles of HBr

3. To Calculate the number of moles of KOH-

Number of moles of KOH = Concentration x VolumeNumber of moles of KOH = 0.25 x 15/1000= 0.00375 moles of KOH

4. To Calculate the number of moles of HBr left after the reaction-

Number of moles of HBr left = Number of moles of HBr – Number of moles of KOHNumber of moles of HBr left = 0.0075 - 0.00375= 0.00375 moles of HBr

5. To Calculate the concentration of HBr-

Concentration of HBr = Number of moles / VolumeConcentration of HBr = 0.00375 / 50/1000= 0.075 M

6. To Calculate the concentration of OH-

Number of moles of KOH = Concentration x Volume

Number of moles of KOH = 0.25 x 15/1000= 0.00375 moles of KOH

Concentration of KOH = Number of moles / Volume

Concentration of KOH = 0.00375 / 65/1000= 0.0577 M

Concentration of OH- = Concentration of KOH= 0.0577 M

7. To Calculate the concentration of H+

Using the formula of pH = -log[H+], we can get

[H+] = 10-pHLet pH = x[H+] = 10-x

From the balanced chemical equation, we know that 1 mole of HBr will give 1 mole of H+ and 1 mole of KOH will give 1 mole of OH-.

As the moles of KOH is less than the moles of HBr, KOH is the limiting reagent.

Now, using the formula of neutralization reaction, we can write-Volume of HBr x Concentration of HBr = Volume of KOH x Concentration of KOH50/1000 x 0.075 = 15/1000 x 0.0577Volume of HBr = 0.06 L

Now, H+ ion concentration can be calculated as-H+ ion concentration = KOH concentration – HBr concentration= 0.0577 – (0.075 x 0.015 / 0.06)= 0.0519 M

8. To Calculate pH of the solution-

We know that, pH = -log[H+]= -log(0.0519)= 1.28

Hence, the pH of the solution after the addition of 15.0 ml of KOH is 1.28.

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False. Electric water heaters do not need to be vented to a flue so fumes can escape to the outside of the buildings since they do not produce fumes.

Electric water heaters produce heat and transfer it to water within an insulated tank. The heat source is an electric element that is submerged in the water.Electric water heaters are gaining popularity due to their energy efficiency and low maintenance requirements. Since they don't produce combustion gases, there is no need for a flue or chimney to be installed, which can save money and space. However, for safety reasons, it is recommended that electric water heaters be installed in an area with good ventilation to prevent any potential buildup of carbon monoxide or other hazardous gases from other appliances in the vicinity.

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To find the mass of the deuteron, we can use the mass-energy equivalence formula, E=mc².

So, the mass of the deuteron is approximately 3.344×10⁻²⁷ kg. We are given that the energy released during the formation of the deuteron is 3.520×10-13 j. We also know that a deuteron is composed of one proton and one neutron, so we can add their masses to get the mass of the deuteron. The mass of a proton is 1.673×10-27 kg, and the mass of a neutron is 1.675×10-27 kg. Adding these two masses gives us:
Now, we can use Einstein's equation to calculate the energy equivalent of this mass: E = mc²
E = (3.348×10-27 kg) x (299,792,458 m/s)²
E = 3.015×10-10 j

We can see that the energy equivalent of the mass of the deuteron is much larger than the energy released during its formation. This is because the mass of the individual particles is greater than the mass of the deuteron. The difference in mass is converted into energy during the formation process, as predicted by Einstein's equation.

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The final volume of the gas is approximately 57.242 mL.

To find the final volume of the gas, we can use the equation for work done by a gas at constant pressure:

Work = -PΔV

Where:

Work is the work done by the gas on its surroundings (given as 119.9 J),

P is the pressure of the gas (given as 783 torr), and

ΔV is the change in volume.

Since the pressure is constant, we can rearrange the equation to solve for ΔV:

ΔV = -Work / P

Plugging in the values:

ΔV = -119.9 J / (783 torr)

We need to convert the pressure from torr to atm to maintain consistent units:

ΔV = -119.9 J / (783 torr * (1 atm / 760 torr))

ΔV = -0.158 L

The negative sign indicates that work is done on the gas, causing it to expand. To find the final volume, we add the change in volume to the initial volume:

Final Volume = Initial Volume + ΔV

Final Volume = 57.4 mL + (-0.158 L)

Final Volume = 57.4 mL - 0.158 mL

Final Volume = 57.242 mL

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There are 156.55 grams of hydrogen atoms present in the sample of \(C_4H_5\).

To calculate the number of grams of hydrogen atoms present in a sample of \(C_4H_5\), we need to first determine the number of moles of hydrogen atoms in the sample.

The molecular formula of \(C_4H_5\) suggests that there are four carbon atoms and five hydrogen atoms in one molecule of the compound. Therefore, the molar mass of \(C_4H_5\) can be calculated as follows:

Molar mass of \(C_4H_5\) = (4 x atomic mass of C) + (5 x atomic mass of H)

= (4 x 12.01 g/mol) + (5 x 1.01 g/mol)

= 56.08 g/mol

If there are 31.0 moles of carbon atoms in the sample, then the number of moles of \(C_4H_5\) in the sample can be calculated as:

Number of moles of \(C_4H_5\) = Number of moles of carbon atoms in the sample

= 31.0 moles

Now, we can use the mole ratio between hydrogen atoms and \(C_4H_5\) to determine the number of moles of hydrogen atoms in the sample. For every one mole of \(C_4H_5\), there are five moles of hydrogen atoms. Therefore, the number of moles of hydrogen atoms in the sample can be calculated as:

Number of moles of hydrogen atoms = Number of moles of \(C_4H_5\) x 5

= 31.0 moles x 5

= 155 moles

Finally, we can convert the number of moles of hydrogen atoms to grams using the molar mass of hydrogen:

Mass of hydrogen atoms = Number of moles of hydrogen atoms x Molar mass of H

= 155 moles x 1.01 g/mol

= 156.55 g

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The number of moles of the HNO₃  is 7.14 mol.

The mass of the ` HNO₃  = 450 g

The molar mass of the  HNO₃  = 1 + 14 + 16 (3)

The molar mass of the  HNO₃ = 63 g/mol

The number of the moles of  HNO₃ = mass / molar mass

Where

The mass = 450 g

The molar mass of the HNO₃  = 63 g/mol

The number of the moles of  HNO₃ = 450 / 63

The number of the moles of  HNO₃ = 7.14 mol

Thus, The number of the moles of  HNO₃  is 7.14 mol with the mass of the 450 g.

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This question is incomplete, the complete question is :

How many moles of HNO3 are present in 450 g of HNO3?

Answer:

Hcl Answer

Explanation:

may be this helpful!

Answer:

81.6%

Explanation:

mass of acetylferrocene and ferrocene mixture = 22.092 g

mass ratio acetylferrocene and ferrocene mixture = 1 : 1

The sum of the ratios = 2, therefore the mass of each compound will be half the mass of the mixture

mass of each compound in the sample mixture = 1/2 * 22.09 2= 11.046 g

mass of recovered acetylferrocene = 9.017 g

percentage recovery = mass recovered/mass in sample * 100%

percentage recovery of acetylferrocene = (9.017 g / 11.046 g) * 100%

percentage recovery of acetylferrocene = 81.6%

Answer:

A. Br

Explanation:

Atomic radius increases down the group. As the increase in the attractive force of the nucleus increases owing to increase in the size of its positive charges, extra electrons are added to the shells to more than counterbalance this effect down the group hence the atomic radius becomes larger. Iodine has a larger atomic radius than bromine.

Secondly, the ionic radius of a negative ion is greater than its corresponding atomic radius since a negative ion is formed by adding a negative charge (electron) to the atom thus making it bigger. Hence the radius of I^- is greater than that of Br^-.

This means that Br atom must possess the smallest radius among the options listed.

Answer:

D

Explanation:

Br-

Answer:

unicellular means having one cell and multicellular means having many cell

example of unicellular organism are euglena,amoeba and paramecium

example of multicellular are man,mushroom and

dog

Explanation:

hope it helps you

Answer:

By making sense of the World around them

Explanation:

maybe?

In de Morceau's nomenclature scheme, the smaller atom appears first.

Nomenclature is an organism name system used in biological classification. Genus and species names, two Latinized nouns drawn from numerous sources, serve as indicators of the species to which the creature belongs.

On August 26, 1743, Antoine-Laurent Lavoisier was born in Paris, France. He was a well-known French chemist and a key player in the 18th century chemical revolution. In addition to co-creating the current system for identifying chemical compounds, he established an experiment-based explanation of the chemical reactivity of oxygen.

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Answer:

...

Explanation:

Answer: C

Explanation: I think C bc at 1;30 its full so its going to  be a bit full on the oppiside side

Answer:

Oxygen is the limiting reagent.

Explanation:

First you must make a chemical equation. Then you will do a mole bridge from the moles of each given substance to a product, you can find how much product each will create. The reactant that creates the least is the limiting reagent. I hope this helps!

Answer:

The electrons are supplied by the species getting oxidized. They move from anode to the cathode in the external circuit. The external battery supplies the electrons. They enter through the cathode and come out through the anode

The electrons are supplied by the species getting oxidized. They move from the anode to the cathode in the external circuit.

An electron is a negatively charged subatomic particle.

The reaction at the anode is oxidation and that at the cathode is reduction. Here, the anode is positive and the cathode is the negative electrode. The reaction at the anode is oxidation and that at the cathode is reduction.

The electrons are supplied by the species getting oxidized. They move from the anode to the cathode in the external circuit. The external battery supplies the electrons. They enter through the cathode and come out through the anode.

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